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BIOLOGY M.C.Q (1 Marks)

Digestion and Absorption · Gujarat Board (GSEB) STD 11 Science (GSEB - English Medium). 158 questions.

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M.C.Q (1 Marks)

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158 questions · auto-graded multiple-choice test.

MCQ 11 Mark
Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?
  • A
    Duodenum: Triglycerides, trypsin monoglycerides.
  • ✓
    Small intestine: Starch$, \alpha$ amylase disaccharide $($maltose$).$
  • C
    Small intestine: Proteins pepsin amino acids.
  • D
    Stomach: Fats, Lipase micelles.
Answer
Correct option: B.
Small intestine: Starch$, \alpha$ amylase disaccharide $($maltose$).$
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MCQ 21 Mark
Which one of the following pairs of the cells with their secretion is correctly matched?
  • A
    Alpha cells of Islets of Langerhans $-$ Secretion that decreases blood sugar level.
  • ✓
    Oxyntic cells $- A$ secretion with $pH$ between $2.0$ and $3.0.$
  • C
    Kupffer cells $- A$ digestive enzyme that hydrolysis nucleic acids.
  • D
    None of these.
Answer
Correct option: B.
Oxyntic cells $- A$ secretion with $pH$ between $2.0$ and $3.0.$
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MCQ 31 Mark
Mark the right statement among the following.
  • ✓
    Trypsinogen is an inactive enzyme.
  • B
    Trypsinogen is secreted by intestinal mucosa.
  • C
    Enterokinase is secreted by pancreas.
  • D
    Bile contains trypsin.
Answer
Correct option: A.
Trypsinogen is an inactive enzyme.
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MCQ 41 Mark
Liver is the largest gland and is associated with various functions. Choose which is not correct from the following.
  • A
    Metabolism of carbohydrate.
  • B
    Digestion of fat.
  • C
    Formation of bile.
  • ✓
    Secretion of hormone called gasotrin.
Answer
Correct option: D.
Secretion of hormone called gasotrin.
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MCQ 51 Mark
Small projections of upper surface of tongue are called.
  • A
    Fimbriae
  • B
    Pilli
  • ✓
    Papillae
  • D
    Cilia
Answer
Correct option: C.
Papillae
The upper surface of the tongue has small projections called papillae, some of them bears taste buds.
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MCQ 61 Mark
One of the factors required for the maturation of erythrocytes is:
  • A
    Vitamin$-D$
  • B
    Vitamin$-A$
  • ✓
    Vitamin$-B_{12}$
  • D
    Vitamin$-C$
Answer
Correct option: C.
Vitamin$-B_{12}$
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MCQ 71 Mark
The contraction of gall bladder is due to:
  • A
    Gastrin
  • B
    Secretin
  • ✓
    Cholecystokinin
  • D
    Enterogasterone
Answer
Correct option: C.
Cholecystokinin
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MCQ 81 Mark
The enzyme added to the starch solution for its break down may have been:
  • A
    Maltase
  • B
    Invertase
  • C
    Lipase
  • ✓
    Amylase
Answer
Correct option: D.
Amylase
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MCQ 91 Mark
Which enzyme is secreted by the liver?
  • A
    Trypsin.
  • B
    Chymotrypsin.
  • C
    Lipase.
  • ✓
    No enzyme.
Answer
Correct option: D.
No enzyme.
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MCQ 101 Mark
Emulsification of fat will not occur in the absence of:
  • A
    Lipase.
  • B
    Pigments.
  • ✓
    Bile salts.
  • D
    Pancreatic juice.
Answer
Correct option: C.
Bile salts.
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MCQ 111 Mark
The enzyme enterokinase helps in the conversionof:
  • A
    Pepsinogen into pepsin.
  • B
    Caseinogen into casein.
  • ✓
    Trypsinogen into trypsin.
  • D
    Proteins into polypeptides.
Answer
Correct option: C.
Trypsinogen into trypsin.
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MCQ 121 Mark
Cholecystokinin is secretion of:
  • A
    Globlet cells of ileum, stimulates secretion of succus entericus.
  • ✓
    Duodenum that causes contraction of gall bladder.
  • C
    Liver and controls secondary sex characters.
  • D
    Stomach that stimulates pancreas to release juice.
Answer
Correct option: B.
Duodenum that causes contraction of gall bladder.
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MCQ 131 Mark
Which of the following is mismatched?
  • ✓
    Vitamin$-K -$ Beri$-$beri.
  • B
    Vitamin$-D -$ Rickets.
  • C
    Vitamin$-C -$ Scurvy.
  • D
    Vitamin$-A -$ Xerophthalmia.
Answer
Correct option: A.
Vitamin$-K -$ Beri$-$beri.
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MCQ 141 Mark
Inner lining of gut, stomach and liver is composed of:
  • A
    Simple squamous epithelium
  • ✓
    Simple columnar epithelium
  • C
    Simple cuboidal epithelium
  • D
    Compound epithelium
Answer
Correct option: B.
Simple columnar epithelium
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MCQ 151 Mark
Which one of the following enzymes initiates protein digestion?
  • A
    Aminopeptidase
  • B
    Carboxypeptidase
  • C
    Trypsin
  • ✓
    Pepsin
Answer
Correct option: D.
Pepsin
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MCQ 161 Mark
The $pH$ scale is used to measure.
  • A
    Electric charge on ion.
  • B
    Speed with which ions form.
  • C
    Size of ions.
  • ✓
    Concentration of hydrogen ions in a solution.
Answer
Correct option: D.
Concentration of hydrogen ions in a solution.
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MCQ 171 Mark
Choose the correct answer among the following: Succus entericus is the name given to
  • A
    A junction between ileum and large intestine.
  • ✓
    Intestinal juice.
  • C
    Swelling in the gut.
  • D
    Appendix.
Answer
Correct option: B.
Intestinal juice.
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MCQ 181 Mark
Inhibition of gastric and stimulation of gastric,pancreatic and bile secretions are controlled by hormones.
  • A
    Gastrin, secretin, enterokinin and cholecystokinin.
  • ✓
    Enterogasterone, gastrin, pancreozymin and cholecystokinin.
  • C
    Gastrin, enterogasterone, cholecystokinin and pancreozymin.
  • D
    Secretin, enterogasterone, gastrin and enterokinin.
Answer
Correct option: B.
Enterogasterone, gastrin, pancreozymin and cholecystokinin.
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MCQ 191 Mark
In a person of advanced age, the hair become thinner gradually. It happens because of decrease in:
  • A
    Synthesis of glucose.
  • ✓
    Synthesis of proteins.
  • C
    Energy availability.
  • D
    Blood supply.
Answer
Correct option: B.
Synthesis of proteins.
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MCQ 221 Mark
A gland not associated with the alimentary canal is
  • A
    Pancreas.
  • ✓
    Adrenal.
  • C
    Liver.
  • D
    Salivary glands.
Answer
Correct option: B.
Adrenal.
Gland is situated above kidney which is not a part of digestive system.
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MCQ 231 Mark
Which of the following are water soluble vitamins?
  • ✓
    $\text{A, D, K}.$
  • B
    $\text{A, D, E, K}.$
  • C
    $\text{B, C}.$
  • D
    None of these.
Answer
Correct option: A.
$\text{A, D, K}.$
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MCQ 241 Mark
Which is the longest portion of the alimentary canal?
  • A
    Oesophagus.
  • B
    Stomach.
  • ✓
    Small Intestine.
  • D
    Large Intestine.
Answer
Correct option: C.
Small Intestine.
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MCQ 251 Mark
Cholecystokinin and duocrinin are secreted by:
  • A
    Adrenal cortex.
  • B
    Thyroid gland.
  • C
    Pancreas.
  • ✓
    Intestine.
Answer
Correct option: D.
Intestine.
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MCQ 261 Mark
Which of the following controls the peristaltic movement of the intestine?
  • A
    Sacral Plexus
  • B
    Brachial Plexus
  • C
    Discoidal Plexus
  • ✓
    Auerbach's Plexus
Answer
Correct option: D.
Auerbach's Plexus
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MCQ 271 Mark
Pancreas produces.
  • A
    Three digestive enzymes and one hormone.
  • ✓
    Three digestive enzymes and two hormones.
  • C
    Two digestive enzymes and one hormone.
  • D
    Three digestive enzymes and no hormone.
Answer
Correct option: B.
Three digestive enzymes and two hormones.
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MCQ 281 Mark
Crypts of Leiberkuhn secrete:
  • A
    Trypsin.
  • ✓
    Intestinal juice.
  • C
    Mucus.
  • D
    Hydrochloric acid.
Answer
Correct option: B.
Intestinal juice.
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MCQ 291 Mark
Which of the following pair is characterised by swollen lips, thick pigmented skin of hands and legs and irritability?
  • A
    Thiamine $-$ Beri$-$beri.
  • B
    Nicotinamide $-$ Pellagra.
  • ✓
    Protein $-$ Kwashiorkor.
  • D
    Iodine $-$ Goitre.
Answer
Correct option: C.
Protein $-$ Kwashiorkor.
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MCQ 301 Mark
Epithelial cells of the intestine involved in food absorption have on their surface.
  • A
    Phagocytic vesicles.
  • B
    Pinocytic vesicles.
  • ✓
    Microvilli.
  • D
    Zymogen granules.
Answer
Correct option: C.
Microvilli.
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MCQ 311 Mark
Removal of stomach causes:
  • ✓
    Dumping syndrome
  • B
    Turner's syndrome
  • C
    Emphysema
  • D
    None of the above
Answer
Correct option: A.
Dumping syndrome
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MCQ 321 Mark
What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
  • A
    Gastric juice will be deficient in chymosin.
  • B
    Gastric juice will be deficient in pepsinogen.
  • ✓
    In the absence of $\text{HCL}$ secretion, inactive pepsinogen is not converted into the active enzyme pepsin.
  • D
    Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin.
Answer
Correct option: C.
In the absence of $\text{HCL}$ secretion, inactive pepsinogen is not converted into the active enzyme pepsin.
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MCQ 331 Mark
Jaundice is a disorder of:
  • ✓
    Digestive system.
  • B
    Excretory system.
  • C
    Skin and eyes.
  • D
    Circulatory system.
Answer
Correct option: A.
Digestive system.
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MCQ 341 Mark
A patient is generally advised to specially, consume more meat, lentils, milk and eggs in diet only when he suffers from:
  • A
    Scurvy
  • ✓
    Kwashiorkor
  • C
    Rickets
  • D
    Anaemia
Answer
Correct option: B.
Kwashiorkor
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MCQ 351 Mark
Rennin acts on:
  • A
    Milk changing casein into calcium paracaseinate at $7.2-8.2 \ pH.$
  • ✓
    Milk changing casein into calcium paracaseinate at $1-3 \ pH.$
  • C
    Protein in stomach.
  • D
    Fat in intestine.
Answer
Correct option: B.
Milk changing casein into calcium paracaseinate at $1-3 \ pH.$
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MCQ 371 Mark
Match the enzymes with their respective substrates and choose the right one among options given.
  Column $I$   Column $II$
$A.$ Lipase. $i.$ Carbohydrates.
$B.$ Nuclease. $ii.$ Fats.
$C.$ Carboxypeptidase. $iii.$ Nucleic acids.
$D.$ Glycoridases. $iv.$ Proteins, peptones and proteoses.
  • A
    $\text{A-(iii), B-(ii), C-(i), D-(iv)}$
  • B
    $\text{A-(iv), B-(iii), C-(iv), D-(i)}$
  • C
    $\text{A-(iii), B-(i), C-(i), D-(iv)}$
  • ✓
    $\text{A-(ii), B-(iii), C-(iv), D-(i)}$
Answer
Correct option: D.
$\text{A-(ii), B-(iii), C-(iv), D-(i)}$
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MCQ 381 Mark
Which part of brain causes nausea?
  • A
    Pons
  • B
    Hypothalamus
  • C
    Parietal lobe
  • ✓
    Medulla
Answer
Correct option: D.
Medulla
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MCQ 391 Mark
The layer of cells that secrete enamel of tooth is:
  • A
    Dentoblast
  • ✓
    Odontoblast
  • C
    Cmiloblast
  • D
    Osteoblast
Answer
Correct option: B.
Odontoblast
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MCQ 401 Mark
Continuous bleeding from an injured part of body is due to deficiency of:
  • A
    Vitamin$-A$
  • B
    Vitamin$-B$
  • ✓
    Vitamin$-K$
  • D
    Vitamin$-E$
Answer
Correct option: C.
Vitamin$-K$
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MCQ 411 Mark
The vitamin$-C$ or ascorbic acid prevents.
  • A
    Rickets.
  • B
    Pellagra.
  • ✓
    Scurvy.
  • D
    Antibody synthesis.
Answer
Correct option: C.
Scurvy.
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MCQ 421 Mark
The mucosal layer in the stomach form irregular folds known as:
  • A
    Villi
  • B
    Lumen
  • ✓
    Rugae
  • D
    Crypts of Lieberkuhn
Answer
Correct option: C.
Rugae
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MCQ 431 Mark
The sphincter of Oddi is present between:
  • A
    Hepatic duct and cystic duct
  • ✓
    Hepatopancreatic duct and duodenum.
  • C
    Pyloric stomach and duodenum.
  • D
    Oesophagus and cardiac stomach.
Answer
Correct option: B.
Hepatopancreatic duct and duodenum.
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MCQ 441 Mark
In mammals, the digestion of starch starts from:
  • ✓
    Mouth
  • B
    Stomach
  • C
    Oesophagus
  • D
    Duodenum
Answer
Correct option: A.
Mouth
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MCQ 451 Mark
The $\text{HCl}$ in gastric juice converts:
  • A
    Disaccharide to monosaccharide.
  • ✓
    Pepsinogen to pepsin.
  • C
    Prorennin to rennin.
  • D
    Polypeptide to peptide.
Answer
Correct option: B.
Pepsinogen to pepsin.
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MCQ 461 Mark
Which one of the following is a matching pair of a substrate and its particular digestive enzyme?
  • ✓
    Maltose $-$ Maltase.
  • B
    Lactose $-$ Rennin.
  • C
    Starch $-$ Steapsin.
  • D
    Casein $-$ Chymotrypsin.
Answer
Correct option: A.
Maltose $-$ Maltase.
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MCQ 471 Mark
Which of following teeth are lophodont?
  • A
    Incisor and canine.
  • ✓
    Premolar and molar.
  • C
    Premolar and molar.
  • D
    Premolar and incisor.
Answer
Correct option: B.
Premolar and molar.
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MCQ 481 Mark
Which one of the following is a matching pair of a vitamin and the deficiency disease related with it?
  • A
    Thiamine $-$ xerophthalmia.
  • B
    Riboflavin $-$ beri beri.
  • ✓
    Niacin $-$ pellagra.
  • D
    Calciferol $-$ scurvy.
Answer
Correct option: C.
Niacin $-$ pellagra.
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MCQ 491 Mark
Emulsification of fat takes place through.
  • A
    Liver enzymes.
  • B
    Bile pigments.
  • ✓
    Bile salts.
  • D
    Enzymes of small intestine.
Answer
Correct option: C.
Bile salts.
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MCQ 501 Mark
Which one of the following amino acids is an essential part of human diet?
  • A
    Glycine.
  • ✓
    Phenylalanine.
  • C
    Serine.
  • D
    Aspartic acid.
Answer
Correct option: B.
Phenylalanine.
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MCQ 511 Mark
Vitamin$-K$ is required for:
  • A
    Change of prothrombin to thrombin.
  • ✓
    Synthesis of prothrombin.
  • C
    Change of fibrinogen to fibrin.
  • D
    Formation of thromboplastin.
Answer
Correct option: B.
Synthesis of prothrombin.
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MCQ 521 Mark
A certain person eats boiled potato; one of the food component in it is:
  • A
    Lactose which is indigestible.
  • B
    Starch which does not get digested.
  • C
    Cellulose which is digested by intestinal cellulase.
  • ✓
    $\text{DNA}$ which gets digested by pancreatic $\text{DNA}$ ase.
Answer
Correct option: D.
$\text{DNA}$ which gets digested by pancreatic $\text{DNA}$ ase.
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MCQ 531 Mark
Gastric ulcers are formed in which part of the alimentary canal?
  • A
    Oesophagus.
  • ✓
    Stomach.
  • C
    Small intestine.
  • D
    Large Intestine.
Answer
Correct option: B.
Stomach.
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MCQ 541 Mark
Peyers patches found in the small intestine are:
  • A
    Epithelial tissue.
  • B
    Glandular tissue.
  • ✓
    Lymphatic tissue.
  • D
    Haemopoietic tissue.
Answer
Correct option: C.
Lymphatic tissue.
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MCQ 551 Mark
The type of muscle fibres present in the wall of alimentary canal is:
  • ✓
    Smooth muscle fibre
  • B
    Striped muscle fibre
  • C
    Cardiac muscle fibre
  • D
    Both $A$ and $B$
Answer
Correct option: A.
Smooth muscle fibre
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MCQ 561 Mark
The mucosal layer in the stomach form irregular folds known as:
  • A
    Villi
  • B
    Lumen
  • ✓
    Rugae
  • D
    Crypts of Lieberkuhn
Answer
Correct option: C.
Rugae
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MCQ 571 Mark
Which of the following is a pancreatic protease?
  • A
    Rennin.
  • B
    Enterokinase.
  • ✓
    Carboxypeptidase.
  • D
    Aminopeptidase.
Answer
Correct option: C.
Carboxypeptidase.
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MCQ 581 Mark
The function of tongue is to:
  • A
    Help in the act of swallowing
  • B
    Help in mixing saliva with the food
  • C
    Help in speaking
  • ✓
    All of the above
Answer
Correct option: D.
All of the above
In humans the tongue helps in the ability to taste, serves as a muscle that pushes chewed food into the throat while mixing with saliva. The tongue also assists with speech for humans.
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MCQ 591 Mark
During prolonged fasting, in what sequence are the following organic compounds used up by the body?
  • A
    First carbohydrates, next proteins and lastly lipids.
  • ✓
    First carbohydrates, next fats and lastly proteins.
  • C
    First fats, next carbohydrates and lastly proteins.
  • D
    First proteins next lipids and lastly carbohydrates.
Answer
Correct option: B.
First carbohydrates, next fats and lastly proteins.
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MCQ 601 Mark
The richest sources of Vitamin$-B_{12}$ are:
  • A
    Carrot and chicken’s breast.
  • B
    Chocolate and green gram.
  • C
    Rice and hen’s egg.
  • ✓
    Goat’s liver and Spirulina.
Answer
Correct option: D.
Goat’s liver and Spirulina.
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MCQ 611 Mark
Assimilation means:
  • A
    Utilising the water taken by body.
  • B
    Accumulating the food for digestion.
  • ✓
    Utilisation of absorbed substances.
  • D
    Collecting wastes left after the absorption of required nutrients.
Answer
Correct option: C.
Utilisation of absorbed substances.
The absorbed substances finally reach the tissues which utilise them for their activities. This process is called assimilation.
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MCQ 621 Mark
In which part of the body, are argentaffin cells found?
  • A
    Oesophagus
  • B
    Mainly in the duodenum
  • C
    Only in the rectum
  • ✓
    In all parts of the alimentary canal, but predominantly in the small intestine
Answer
Correct option: D.
In all parts of the alimentary canal, but predominantly in the small intestine
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MCQ 631 Mark
Amylolytic enzymes are produced from:
  • ✓
    Salivary glands and liver
  • B
    Stomach and liver
  • C
    Stomach and pancreas
  • D
    Salivary glands and pancreas
Answer
Correct option: A.
Salivary glands and liver
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MCQ 641 Mark
Sucrase is an enzyme found in:
  • A
    Saliva
  • B
    Pancreatic juice
  • C
    Gastric juice
  • ✓
    Intestinal juice
Answer
Correct option: D.
Intestinal juice
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MCQ 651 Mark
Layer of cells that secrete enamel of tooth is:
  • A
    Dentoblast
  • B
    Osteoblast
  • ✓
    Ameloblast
  • D
    Odontoblast
Answer
Correct option: C.
Ameloblast
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MCQ 661 Mark
Digestion is brought about by:
  • A
    Hormones
  • B
    Neurotransmitters
  • C
    Growth factors
  • ✓
    Enzymes
Answer
Correct option: D.
Enzymes
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MCQ 671 Mark
If pancreas is removed, the compound which remain undigested is:
  • A
    Carbohydrates.
  • B
    Fats.
  • C
    Proteins.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.
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MCQ 681 Mark
A person suffering from reflux oesphagitis will have problem in which part of the alimentary canal?
  • ✓
    Oesophagus.
  • B
    Stomach.
  • C
    Small Intestine.
  • D
    Large Intestine.
Answer
Correct option: A.
Oesophagus.
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MCQ 691 Mark
The haemorrhagic disease of new born is caused due to the deficiency of:
  • A
    Vitamin$-A$
  • B
    Vitamin$-B_{1}$
  • C
    Vitamin$-B_{12}$
  • ✓
    Vitamin$-K$
Answer
Correct option: D.
Vitamin$-K$
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MCQ 701 Mark
A digestive juice that lacks any enzyme, is
  • A
    Saliva.
  • B
    Pancreatic juice.
  • ✓
    Bile.
  • D
    Intestinal juice.
Answer
Correct option: C.
Bile.
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MCQ 721 Mark
Match the two columns and select the right one among options given.
  Column $I$   Column $II$
$A.$ Duodenum. $i.$ A cartilaginous flap.
$B.$ Epiglottis. $ii.$ Small blind sac.
$C.$ Glottis. $iii.$ $‘U’$ shaped structure emerging from the stomach.
$D.$ Caecum. $iv.$ Opening of wind pipe.
  • A
    $\text{A-(i), B-(iv), C-(iii), D-(ii)}$
  • B
    $\text{A-(iv), B-(ii), C-(i), D-(iii)}$
  • ✓
    $\text{A-(iii), B-(i), C-(iv), D-(ii)}$
  • D
    $\text{A-(ii), B-(i), C-(ii), D-(iv)}$
Answer
Correct option: C.
$\text{A-(iii), B-(i), C-(iv), D-(ii)}$
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MCQ 731 Mark
A dental disease characterised by moltting of teeth is due to the presence of a certain chemical element in drinking water. Which of the following is that element?
  • A
    Mercury
  • B
    Chlorine
  • ✓
    Fluorine
  • D
    Boron
Answer
Correct option: C.
Fluorine
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MCQ 741 Mark
What is common among amylase, renin and trypsin?
  • ✓
    These all are proteins.
  • B
    These all are proteolytic enzymes.
  • C
    These are produced in stomach.
  • D
    These act at a $pH$ lower than $7.$
Answer
Correct option: A.
These all are proteins.
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MCQ 751 Mark
Which of the following part of human intestine hosts microorganisms?
  • A
    Colon
  • ✓
    Caecum
  • C
    Anus
  • D
    Rectum
Answer
Correct option: B.
Caecum
Caecum is a small blind sac which hosts some microorganisms.
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MCQ 761 Mark
A person suffering from the deficiency of the visual pigment rhodopsin is advised to take more.
  • A
    Radish and potato.
  • B
    Apple and grapes.
  • ✓
    Carrot and ripe papaya.
  • D
    Guava and ripe banana.
Answer
Correct option: C.
Carrot and ripe papaya.
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MCQ 771 Mark
Which one of the following pairs is not correctly matched?
  • A
    Vitamin$-B_{12} -$ Pernicious anaemia.
  • B
    Vitamin$-B_1-$  Beri$-$beri.
  • C
    Vitamin$-C -$ Scurvy.
  • ✓
    Vitamin$-B_2-$  Pellagra.
Answer
Correct option: D.
Vitamin$-B_2-$  Pellagra.
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MCQ 781 Mark
Oxyntic cells are located in:
  • A
    Gastric epithelium and secrete pepsin.
  • B
    Kidneys and secrete renin.
  • ✓
    Gastric epithelium and secrete $\text{HCl}.$
  • D
    Islets of Langerhans.
Answer
Correct option: C.
Gastric epithelium and secrete $\text{HCl}.$
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MCQ 791 Mark
Hepato$-$pancreatic duct opens into the duodenum and carries.
  • A
    Bile.
  • B
    Pancreatic juice.
  • ✓
    Both bile and pancreatic juice.
  • D
    Saliva.
Answer
Correct option: C.
Both bile and pancreatic juice.
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MCQ 801 Mark
Which of the following is not a common disorder associated with digestive system?
  • ✓
    Tetanus.
  • B
    Diarrhoea.
  • C
    Jaundice.
  • D
    Dysentery.
Answer
Correct option: A.
Tetanus.
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MCQ 811 Mark
Which one of the following is a matching pair of a substrate and its particular digestive enzyme?
  • ✓
    Starch $-$ maltase.
  • B
    Maltose $-$ steapsin.
  • C
    Lactose $-$ rennin.
  • D
    Casein $-$ chymotrypsin.
Answer
Correct option: A.
Starch $-$ maltase.
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MCQ 821 Mark
Which of the following is not true of intestinal villi?
  • A
    They possess microvilli.
  • B
    They increase the surface area.
  • C
    They are supplied with capillaries and the lacteal vessels.
  • ✓
    They only participate in digestion of fats.
Answer
Correct option: D.
They only participate in digestion of fats.
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MCQ 831 Mark
Lactose is composed of:
  • A
    Glucose $+$ fructose.
  • B
    Glucose $+$ glucose.
  • ✓
    Glucose $+$ galactose.
  • D
    Fructose $+$ galactose.
Answer
Correct option: C.
Glucose $+$ galactose.
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MCQ 851 Mark
Which enzyme is used in alcoholic fermentation of yeast?
  • A
    Maltase
  • B
    Invertase
  • C
    Sucrase
  • ✓
    Zymase
Answer
Correct option: D.
Zymase
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MCQ 881 Mark
Duodenum has characteristic Brunner’s glands which secrete two hormones called.
  • A
    Kinase, estrogen.
  • ✓
    Secretin, cholecystokinin.
  • C
    Prolactin, parathormone.
  • D
    Estradiol, progesterone.
Answer
Correct option: B.
Secretin, cholecystokinin.
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MCQ 891 Mark
Most of the digestion occurs in the
  • A
    Mouth.
  • ✓
    Small intestine.
  • C
    Stomach.
  • D
    Large intestine.
Answer
Correct option: B.
Small intestine.
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MCQ 901 Mark
Brush bordered epithelium is found in ?
  • A
    Trachea
  • B
    Stomach
  • ✓
    Small intestine
  • D
    Fallopian tube
Answer
Correct option: C.
Small intestine
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MCQ 911 Mark
Upper half of oesophagus contains:
  • A
    Striped muscle layer
  • B
    Skeletal muscle layer
  • C
    Unstriated$/$ Smooth muscle layer
  • ✓
    Both $A$ and $B$
Answer
Correct option: D.
Both $A$ and $B$
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MCQ 921 Mark
Release of pancreatic juice is stimulated by:
  • A
    Enterokinase
  • B
    Cholecystokinin
  • C
    Trypsinogen
  • ✓
    Secretin
Answer
Correct option: D.
Secretin
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MCQ 931 Mark
Which is the correct dental formula for human?
  • ✓
    $\frac{2123}{2123}$
  • B
    $\frac{2213}{2213}$
  • C
    $\frac{2113}{2113}$
  • D
    $\frac{1223}{1223}$
Answer
Correct option: A.
$\frac{2123}{2123}$
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MCQ 941 Mark
Which is the largest organ of the digestive system?
  • A
    Oesophagus.
  • B
    Stomach.
  • C
    Pancreas.
  • ✓
    Liver.
Answer
Correct option: D.
Liver.
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MCQ 951 Mark
Which group contains biocatalysts?
  • ✓
    Peptidase, amylase, rennin
  • B
    Myosin, oxytocin, adrenalin
  • C
    Rhodopsin, pepsin, steapsin
  • D
    Glucose, amino acids, fatty acids
Answer
Correct option: A.
Peptidase, amylase, rennin
Enzymes are biocatalysts and like catalysts increase the rate of a chemical reaction and participate in a reaction but are not consumed in it.
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MCQ 961 Mark
Cow’s milk is slightly yellowish in colour due to the presence of:
  • ✓
    Riboflavin.
  • B
    Xanthophyll.
  • C
    Xanthophyll and Carotene.
  • D
    Carotene.
Answer
Correct option: A.
Riboflavin.
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MCQ 971 Mark
The hormone that stimulates the stomach to secrete gastric juice is:
  • ✓
    Gastrin
  • B
    Renin
  • C
    Enterokinase
  • D
    Enterogasterone
Answer
Correct option: A.
Gastrin
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MCQ 981 Mark
Dark purplish gland lying on the left side of abdomen is called.
  • ✓
    Spleen.
  • B
    Liver.
  • C
    Gall bladder.
  • D
    None of these.
Answer
Correct option: A.
Spleen.
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MCQ 991 Mark
What is common among amylase, rennin and trypsin?
  • ✓
    These all are proteins.
  • B
    These all are proteolytic enzymes.
  • C
    These are produced in stomach.
  • D
    None of the above.
Answer
Correct option: A.
These all are proteins.
The common feature between rennin, amylase and trypsin are that these are protein enzymes. They act on the substrates starch , protein and lactose respectively.
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MCQ 1001 Mark
Pepsin is produced by:
  • A
    Salivary glands
  • ✓
    Stomach
  • C
    Duodenum
  • D
    Small intestine
Answer
Correct option: B.
Stomach
Hydrolysis of protein chains into amino acids is done first by the enzyme pepsin in the stomach. Pepsin is secreted from glands in the stomach where pepsinogen is converted to active form pepsin, by hydrochloric acid.
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MCQ 1011 Mark
Cirrhosis of liver is caused by the chronic intake of:
  • A
    Tobacco $($Chewing$)$
  • B
    Cocaine
  • C
    Opium
  • ✓
    Alcohol
Answer
Correct option: D.
Alcohol
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MCQ 1021 Mark
Lactase is found in:
  • A
    Saliva
  • B
    Bile
  • C
    Pancreatic juice
  • ✓
    Intestinal juice
Answer
Correct option: D.
Intestinal juice
Lactase is an enzyme produced by the small intestine, found in the digestive system of humans. It is essential to complete the digestion of whole milk. Lactase breaks down lactose, to glucose and galactose.
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MCQ 1031 Mark
The trypsin enzyme is secreted by:
  • A
    Stomach
  • B
    Duodenum
  • ✓
    Pancreas
  • D
    Liver
Answer
Correct option: C.
Pancreas
Trypsin is produced in the pancreas as the inactive proenzyme trypsinogen. In the duodenum, trypsin catalyzes the hydrolysis of peptide bonds, breaking down proteins into smaller peptides.
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MCQ 1041 Mark
Which one of the following is a protein deficiency disease?
  • A
    Eczema.
  • B
    Cirrhosis.
  • ✓
    Kwashiorkor.
  • D
    Night blindness.
Answer
Correct option: C.
Kwashiorkor.
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MCQ 1051 Mark
Pulp cavity of teeth is lined by:
  • ✓
    Odontoblast
  • B
    Chondrobast
  • C
    Osteoblast
  • D
    Amylobast
Answer
Correct option: A.
Odontoblast
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MCQ 1061 Mark
One of the constituents of the pancreatic juice while poured into the duodenum in humans, is:
  • A
    Trypsin
  • B
    Enterokinase
  • ✓
    Trypsinogen
  • D
    Chymotrypsin
Answer
Correct option: C.
Trypsinogen
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MCQ 1071 Mark
Secretion of gastric juice is stopped by:
  • A
    Gastrin
  • B
    Pancreozymin
  • C
    Cholecystokinin
  • ✓
    Enterogasterone
Answer
Correct option: D.
Enterogasterone
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MCQ 1081 Mark
Ptyalin is:
  • A
    Strongly acidic
  • ✓
    Slightly acidic
  • C
    Slightly neutral
  • D
    Strongly alkaline
Answer
Correct option: B.
Slightly acidic
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MCQ 1091 Mark
Milk protein is acted upon by a gastric enzyme:
  • A
    Casein
  • ✓
    Rennin
  • C
    Pepsin
  • D
    Caseinogen
Answer
Correct option: B.
Rennin
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MCQ 1101 Mark
Which one is correctly matched?
  • ✓
    Vit$.-E-$Tocopherol.
  • B
    Vit$.-D-$Riboflavin.
  • C
    Vit$.-B-$Calciferol.
  • D
    Vit$.-A-$Thiamine.
Answer
Correct option: A.
Vit$.-E-$Tocopherol.
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MCQ 1111 Mark
For person suffering from high blood cholesterol, the physicians recommend.
  • A
    Pure ‘deshi ghee’ or butter.
  • ✓
    Vegetable oil such as groundnut oil.
  • C
    Red meat with layers of fats.
  • D
    Vanaspati margarine.
Answer
Correct option: B.
Vegetable oil such as groundnut oil.
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MCQ 1121 Mark
Which one of the following statements is true regarding digestion and absorption of food in humans?
  • A
    Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries.
  • B
    About $60\%$ of starch is hydrolysed by salivary amylase in our mouth.
  • C
    Oxyntic cells in our stomach secrete the proenzyme pepsinogen.
  • ✓
    Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like $Na^+.$
Answer
Correct option: D.
Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like $Na^+.$
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MCQ 1131 Mark
Dental formula in human beings is
  • A
    $3 \ 2 \ 2 \ 3$
  • ✓
    $2 \ 1 \ 2 \ 3$
  • C
    $1 \ 2 \ 3 \ 2$
  • D
    $2 \ 2 \ 3 \ 3$
Answer
Correct option: B.
$2 \ 1 \ 2 \ 3$
Dental formula represents the number of teeth in each half of the jaw.
Dental Formula of human beings is $\frac{2123}{2123} \times 2 = 32$
Number of permanent teeth in human beings are $32 \ i.e., 8$ incisors$, 4$ canines$, 8$ premolars and $12$ molars.
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MCQ 1141 Mark
Both the crown and root of a tooth is covered by a layer of bony hard substance. It is called:
  • A
    Cementum.
  • B
    Enamel.
  • C
    Bony socket.
  • ✓
    Dentine.
Answer
Correct option: D.
Dentine.
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MCQ 1151 Mark
Which of the following is not a human salivary gland?
  • A
    Parotid
  • B
    Submaxillary
  • C
    Sublingual
  • ✓
    Infra orbital
Answer
Correct option: D.
Infra orbital
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MCQ 1161 Mark
Which is the innermost layer of alimentary canal?
  • A
    Muscular Layer.
  • B
    Serosa.
  • ✓
    Mucosa.
  • D
    Sub$-$mucosa.
Answer
Correct option: C.
Mucosa.
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MCQ 1171 Mark
In which part of the body, are argentaffin cells found?
  • A
    Oesophagus
  • B
    Mainly in the duodenum
  • C
    Only in the rectum
  • ✓
    In all parts of the alimentary canal, but predominantly in the small intestine
Answer
Correct option: D.
In all parts of the alimentary canal, but predominantly in the small intestine
Argentaffin cells are the round shaped epithelial found in the lining of the digestive tract such as gastric glands in the stomach wall. It is found in all parts of the alimentary canal but mostly occurs in the small intestine. As the granules of these cells precipitate the silver from silver nitrate solution it is called as argentaffin cells.
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MCQ 1181 Mark
Which one of the following pairs of food components in humans reaches the stomach totally undigested?
  • A
    Starch and cellulose.
  • B
    Protein and starch.
  • ✓
    Fat and cellulose.
  • D
    Starch and fat.
Answer
Correct option: C.
Fat and cellulose.
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MCQ 1191 Mark
Brunner’s glands occur in:
  • ✓
    Sub$-$mucosa of duodenum.
  • B
    Sub$-$mucosa of stomach.
  • C
    Mucosa of oesophagus.
  • D
    Mucosa of ileum.
Answer
Correct option: A.
Sub$-$mucosa of duodenum.
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MCQ 1201 Mark
Pancreatic juice and hormones of pancreas are produced by:
  • A
    Same cells.
  • B
    Same cells at different times.
  • C
    Statement is wrong.
  • ✓
    Different cells.
Answer
Correct option: D.
Different cells.
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MCQ 1211 Mark
Secretin and cholecystokinin are digestive hormones. They are secreted in:
  • A
    Oesophagus.
  • B
    Ileum.
  • ✓
    Duodenum.
  • D
    Pyloric stomach.
Answer
Correct option: C.
Duodenum.
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MCQ 1221 Mark
Match the two columns and select the correct among options given
  Column $I$   Column $II$
$A.$ Biomacromolecules of food. $i.$ Alimentary canal and associated gland.
$B.$ Human digestive system. $ii.$ Embedded in jawbones.
$C.$ Stomach. $iii.$ Outer wall of visceral organs.
$D.$ Thecodont. $iv.$ Converted into simple substances.
$E.$ Serosa. $v.$ $J-$shaped bag like structure.
  • A
    $\text{A-(i), B-(iii), C-(iv), D-(ii), E-(v)}$
  • ✓
    $\text{A-(iv), B-(i), C-(v), D-(ii), E-(iii)}$
  • C
    $\text{A-(ii), B-(v), C-(iii), D-(i), E-(iv)}$
  • D
    $\text{A-(iii), B-(ii), C-(v), D-(iv), E-(i)}$
Answer
Correct option: B.
$\text{A-(iv), B-(i), C-(v), D-(ii), E-(iii)}$
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MCQ 1231 Mark
Which part of body secretes the hormone secretin?
  • A
    Oesophagus
  • ✓
    Duodenum
  • C
    Stomach
  • D
    Ileum
Answer
Correct option: B.
Duodenum
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MCQ 1241 Mark
Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to:
  • A
    Urine laden with ketone bodies.
  • B
    Kidney stones.
  • C
    Vitamin $A$ toxicity.
  • ✓
    Hypercholesterolemia.
Answer
Correct option: D.
Hypercholesterolemia.
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MCQ 1251 Mark
Globet cells of intestinal mucosal epithelium secrete.
  • ✓
    Mucus
  • B
    Cholesterol
  • C
    Peptones
  • D
    Bilirubin
Answer
Correct option: A.
Mucus
Intestinal mucosal epithelium has globet cells which secrete mucus.
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MCQ 1261 Mark
Below freezing point digestive enzymes are:
  • ✓
    Inactivated
  • B
    Activated
  • C
    Destroyed
  • D
    Unaffected
Answer
Correct option: A.
Inactivated
Below freezing point, enzymes are inactivated, but not denatured. Enzymes regain their function when brought to normal temperature.
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MCQ 1271 Mark
In man the zymogen or chief cells are mainly found in:
  • ✓
    Fundic part of stomach.
  • B
    Cardiac part of stomach.
  • C
    Pyloric part of stomach.
  • D
    Duodenum.
Answer
Correct option: A.
Fundic part of stomach.
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MCQ 1281 Mark
Which one of the following vitamin can be synthesized by bacteria inside the gut?
  • A
    $B1$
  • B
    $C$
  • C
    $D$
  • ✓
    $K$
Answer
Correct option: D.
$K$
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MCQ 1291 Mark
Carrier ions like $Na^+$ facilitate the absorption of substances like:
  • ✓
    Fructose and some amino acids.
  • B
    Amino acids and glucose.
  • C
    Glucose and fatty acids.
  • D
    Fatty acids and glycerol.
Answer
Correct option: A.
Fructose and some amino acids.
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MCQ 1301 Mark
Mucosa of duodenum has:
  • A
    Absorptive cells
  • B
    Goblet cells
  • C
    Argentaffin cells
  • ✓
    All the above
Answer
Correct option: D.
All the above
The mucosa of duodenum has many different types of cells such as $-$
Enterocytes $($Absorptive cells$)$
Goblet cells $($mucous secreting cells$)$
Enteroendocrine cells $($Argentaffin cells$).$
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MCQ 1311 Mark
The first site of protein digestion is:
  • A
    Gullet
  • ✓
    Stomach
  • C
    Small intestine
  • D
    Oral cavity
Answer
Correct option: B.
Stomach
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MCQ 1321 Mark
Lysozyme is found in:
  • A
    Saliva
  • B
    Tears
  • C
    Mitochondria
  • ✓
    Both $A$ and $B$
Answer
Correct option: D.
Both $A$ and $B$
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MCQ 1331 Mark
Epithelial cells of the intestine involved in food absorption have on their surface.
  • ✓
    Microvilli.
  • B
    Pinocytic vesicles.
  • C
    Phagocytic vesicles.
  • D
    Zymogen granules.
Answer
Correct option: A.
Microvilli.
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MCQ 1341 Mark
Meckel's diverticulum is found in $..........:$
  • ✓
    Ileum
  • B
    Appendix
  • C
    pylorus
  • D
    Rectum
Answer
Correct option: A.
Ileum
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MCQ 1351 Mark
Accessory excretory organs of man are:
  • A
    Only skin and lungs.
  • B
    Only skin and liver.
  • C
    Only skin.
  • ✓
    Skin, lungs, liver and intestine.
Answer
Correct option: D.
Skin, lungs, liver and intestine.
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MCQ 1361 Mark
The oesophagus opens in which portion of stomach?
  • A
    Fundus.
  • ✓
    Cardiac.
  • C
    Pyloric.
  • D
    Sphincter.
Answer
Correct option: B.
Cardiac.
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MCQ 1371 Mark
Duct leading from parotid gland and opening into vestibule is:
  • A
    Wolffian duct.
  • ✓
    Stensons duct.
  • C
    Haversian duct.
  • D
    Infra$-$orbit duct.
Answer
Correct option: B.
Stensons duct.
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MCQ 1391 Mark
Most of the fat digestion occurs in:
  • A
    Rectum.
  • B
    Stomach.
  • C
    Duodenum.
  • ✓
    Small intestine.
Answer
Correct option: D.
Small intestine.
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MCQ 1401 Mark
Which one of the following food component in humans reaches the stomach partially digested?
  • ✓
    Cooked starch
  • B
    Fat
  • C
    Protein, starch
  • D
    Starch, fat
Answer
Correct option: A.
Cooked starch
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MCQ 1411 Mark
If for some reason our goblet cells are non$-$functional this will adversely affect.
  • ✓
    Smooth movement of food down the intestine.
  • B
    Production of somatostatin.
  • C
    Secretion of sebum from the sebaceous glands.
  • D
    Maturation of sperms.
Answer
Correct option: A.
Smooth movement of food down the intestine.
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MCQ 1421 Mark
In frog, the surface of attachment of tongue is:
  • A
    Sphenoid.
  • B
    Palatine.
  • C
    Pterygoid.
  • ✓
    Hyoid apparatus.
Answer
Correct option: D.
Hyoid apparatus.
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MCQ 1431 Mark
Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease?
  • ✓
    Vitamin$-A -$ Fat soluble $-$ Night blindness.
  • B
    Vitamin$-K -$ Fat soluble $-$ Beri$-$beri.
  • C
    Vitamin$-A -$ Fat soluble $-$ Beri$-$beri.
  • D
    Vitamin$-K -$ Water soluble $-$ Pellagra.
Answer
Correct option: A.
Vitamin$-A -$ Fat soluble $-$ Night blindness.
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MCQ 1441 Mark
The semi$-$digested food that moves down the oesophagus is known as$...........$
  • ✓
    Bolus
  • B
    Chyme
  • C
    Both $A$ and $B$
  • D
    Protein
Answer
Correct option: A.
Bolus
Bolus is the food that has been chewed and mixed with saliva in the mouth. The food is reduced to smaller size and saliva adds water, digestive enzymes and mucus $($semi$-$digested$);$ which aids for easy swallowing through the oesophagus.
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MCQ 1451 Mark
To which of the following family do folic acid and pantothenic acid belong?
  • A
    Vitamin$-C.$
  • B
    Vitamin$-K.$
  • C
    Vitamin$-A.$
  • ✓
    Vitamin$-B$ complex.
Answer
Correct option: D.
Vitamin$-B$ complex.
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MCQ 1461 Mark
Maximum amount of energy$/ \text{ATP}$ is liberated on oxidation of:
  • ✓
    Fats
  • B
    Proteins
  • C
    Starch
  • D
    Vitamins
Answer
Correct option: A.
Fats
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MCQ 1471 Mark
Which organ is most affected by jaundice?
  • A
    Pancreas
  • ✓
    Liver
  • C
    Stomach
  • D
    Intestine
Answer
Correct option: B.
Liver
Jaundice affects liver. Skin and eyes turn yellow due to the deposition of bile pigments.
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MCQ 1481 Mark
During prolonged fasting, in what sequence are the following organic compounds used up by the body?
  • A
    First carbohydrates, next proteins and lastly lipids.
  • B
    First proteins, next lipids and lastly carbohydrates.
  • ✓
    First carbohydrates, next fats and lastly proteins.
  • D
    First fats, next carbohydrates and lastly proteins.
Answer
Correct option: C.
First carbohydrates, next fats and lastly proteins.
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MCQ 1491 Mark
Choose the correct answer among the following: Gastric juice contains
  • ✓
    pepsin, lipase and rennin.
  • B
    Trypsin, lipase and rennin.
  • C
    Trypsin, pepsin and lipase.
  • D
    Trypsin, pepsin and renin.
Answer
Correct option: A.
pepsin, lipase and rennin.
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MCQ 1501 Mark
In glycolysis ultimately:
  • A
    Starch is converted into glucose.
  • B
    Glucose is converted into fructose.
  • C
    Protein is converted into glucose.
  • ✓
    Glucose is converted into pyruric acid.
Answer
Correct option: D.
Glucose is converted into pyruric acid.
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MCQ 1511 Mark
What are the functions of goblet cells?
  • A
    Production of enzyme
  • ✓
    Production of mucin
  • C
    Production of hormone
  • D
    Production of $\text{HCl}$
Answer
Correct option: B.
Production of mucin
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MCQ 1521 Mark
'Kwashiorkar' and 'Beri$-$Beri' are:
  • A
    Communicable diseases.
  • B
    Infectious diseases.
  • ✓
    Deficiency diseases.
  • D
    None of the above.
Answer
Correct option: C.
Deficiency diseases.
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MCQ 1531 Mark
Trypsinogen is activated by:
  • ✓
    Enterokinase.
  • B
    Hydrochloric acid.
  • C
    Pepsin.
  • D
    Bile.
Answer
Correct option: A.
Enterokinase.
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MCQ 1541 Mark
First milk produced after child birth is called.
  • ✓
    Colostrum
  • B
    Cerumen
  • C
    True milk
  • D
    Sebum
Answer
Correct option: A.
Colostrum
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MCQ 1551 Mark
Correct enzyme$-$substrate pair is:
  • A
    Maltose$-$lactase.
  • B
    Protein$-$amylase.
  • C
    Carbohydrate$-$lipase.
  • ✓
    Casein$-$rennin.
Answer
Correct option: D.
Casein$-$rennin.
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MCQ 1561 Mark
Stool of a person contains whitish grey colour due to malfunction of which type of organ?
  • A
    Pancreas
  • B
    Spleen
  • C
    Kidney
  • ✓
    Liver
Answer
Correct option: D.
Liver
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MCQ 1571 Mark
The glucose is converted into glycogen in liver and stored in:
  • A
    Liver and spleen.
  • B
    Liver and muscle.
  • ✓
    Liver.
  • D
    Spleen and muscles.
Answer
Correct option: C.
Liver.
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MCQ 1581 Mark
The digestion of food starts in which part of the alimentary canal?
  • ✓
    Mouth.
  • B
    Oesophagus.
  • C
    Stomach.
  • D
    Small Intestine.
Answer
Correct option: A.
Mouth.
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