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BIOLOGY M.C.Q (1 Marks)

Chemical Coordination and integration · MP Board (MPBSE) STD 11 Science (Madhya Pradesh - English Medium). 153 questions.

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M.C.Q (1 Marks)

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MCQ 11 Mark
Injury to adrenal cortex is not likely to affect the secretion of which one of the following?
  • A
    Aldosterone.
  • B
    Both Androstenedione and Dehydroepiandrosterone.
  • ✓
    Adrenaline.
  • D
    Cortisol.
Answer
Correct option: C.
Adrenaline.
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MCQ 21 Mark
The hormone which regulates the basal metabolism in our body is secreted from:
  • A
    Pituitary.
  • ✓
    Thyroid.
  • C
    Adrenal cortex.
  • D
    Pancreas.
Answer
Correct option: B.
Thyroid.
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MCQ 31 Mark
In the body, both the blood sodium and potassium levels are regulated by $..........$
  • A
    Pheromones
  • ✓
    Aldosterone
  • C
    Cortisol
  • D
    Androgens
Answer
Correct option: B.
Aldosterone
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MCQ 41 Mark
Which of the following is essential for thyroid gland?
  • A
    $\text{NaCl}$
  • ✓
    $I_3$
  • C
    $\ce{CaCO_2}$
  • D
    $\ce{H_2CO_3}$
Answer
Correct option: B.
$I_3$
Lodine is essential for thyroid gland.
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MCQ 51 Mark
According to recent knowledge, the pineal body is considered as:
  • A
    A vestigial organ
  • B
    An organ of intelligence
  • ✓
    An endocrine gland
  • D
    An organ of involuntary action
Answer
Correct option: C.
An endocrine gland
The pineal gland is also known as pineal body. This gland is also considered as endocrine gland. It secrets melatonin to regulate the body's rhythm.
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MCQ 61 Mark
The only unicellular exocrine glands in our body are:
  • ✓
    Mucus secreting goblet cells.
  • B
    Mammary glands.
  • C
    Sebaceous glands.
  • D
    Sweat glands.
Answer
Correct option: A.
Mucus secreting goblet cells.
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MCQ 81 Mark
Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?
  • ✓
    Luteinizing hormone $-$ Failure of ovulation.
  • B
    Insulin $-$ Diabetes insipidus.
  • C
    Thyroxine $-$ Tetany.
  • D
    Parathyroid hormone $-$ Diabetes mellitus.
Answer
Correct option: A.
Luteinizing hormone $-$ Failure of ovulation.
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MCQ 91 Mark
$\text{PTH}$ is called as hypercalcemic hormone because it leads to the:
  • A
    Absorption of $\ce{CaCO_3}$ from the digested food.
  • B
    Reabsorption of water from renal tubules.
  • ✓
    Increasing blood calcium levels.
  • D
    Maintenance ion balance in blood.
Answer
Correct option: C.
Increasing blood calcium levels.
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MCQ 101 Mark
Which of the following endocrine gland stores its secretion in the extracellular space before discharging into the blood?
  • A
    Pancreas
  • B
    Adrenal
  • C
    Testis
  • ✓
    Thyroid
Answer
Correct option: D.
Thyroid
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MCQ 111 Mark
Mary is about to face an interview. But during the first five minutes before the interview she experiences sweating, increased rate of heart beat, respiration etc. Which of the following hormones are responsible for her restlessness?
  • A
    Estrogen and progesterone.
  • B
    Oxytocin and vasopressin.
  • ✓
    Adrenaline and noradrenaline.
  • D
    Insulin and glucagon.
Answer
Correct option: C.
Adrenaline and noradrenaline.
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MCQ 121 Mark
Feeling the tremors of an earthquake a scared resident of seventh floor of a multistoryed building starts climbing down the stairs rapidly. Which hormone initiated this action?
  • A
    Thyroxin $[2007]$
  • ✓
    Adrenalin
  • C
    Glucagon
  • D
    Gastrin
Answer
Correct option: B.
Adrenalin
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MCQ 131 Mark
Tetany $($irregular muscle contraction$)$ and osteoporosis are caused due to the deficiency of:
  • A
    Cortisone
  • B
    Estrogen
  • C
    Insulin
  • ✓
    Parathormone
Answer
Correct option: D.
Parathormone
Hypoparathyroidism is decreased function of the parathyroid glands with underproduction of parathyroid hormone. This can lead to low levels of calcium in the blood, often causing cramping and twitching of muscles or tetany $($involuntary muscle contraction$).$
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MCQ 141 Mark
$T-$cells are lymphocytes, which produce the cellular immunity. These are developed from:
  • ✓
    Thymus
  • B
    Liver
  • C
    Spleen
  • D
    Endothelium of blood vessels
Answer
Correct option: A.
Thymus
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MCQ 161 Mark
Hormones generally cause a response in a cell by:
  • A
    Halting all other cellular activity except the required response.
  • B
    Nteracting directly with the cell’s $\text{DNA}.$
  • ✓
    Binding with a receptor and stimulating protein production.
  • D
    Changing the polarity of the cell membrane and causing a cascade of events within the cell.
Answer
Correct option: C.
Binding with a receptor and stimulating protein production.
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MCQ 171 Mark
Pineal gland of human brain secretes melatonin, which is concerned with:
  • A
    Anger
  • B
    Body temperature
  • C
    Colouration of skin
  • ✓
    Sleep
Answer
Correct option: D.
Sleep
Melatonin secretes from the pineal gland present in the anterior pituitary gland. Melatonin helps in regulating the sleep$-$wake cycle.
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MCQ 181 Mark
Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogenesis?
  • A
    $\text{ACTH}$
  • B
    Insulin
  • ✓
    Adrenalin
  • D
    Glucagon
Answer
Correct option: C.
Adrenalin
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MCQ 191 Mark
Which is the smallest gland in human body?
  • A
    Liver
  • B
    Pituitary gland
  • C
    Thyroid gland
  • ✓
    Pineal gland
Answer
Correct option: D.
Pineal gland
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MCQ 201 Mark
Hormones thyroxine, adrenalin and the pigment melanin are formed from:
  • A
    Tryptophan
  • B
    Glycine
  • ✓
    Tyrosine
  • D
    Proline
Answer
Correct option: C.
Tyrosine
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MCQ 211 Mark
Diabetes is due to:
  • A
    Iodine deficiency.
  • ✓
    Hormonal deficiency.
  • C
    $Na^+$ deficiency.
  • D
    Enzyme deficiency.
Answer
Correct option: B.
Hormonal deficiency.
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MCQ 221 Mark
Which one of the following is both hormone and enzyme?
  • A
    $\text{ADH}$ hormone
  • B
    Acetylcholinesterase
  • C
    Angiotensinogen
  • ✓
    Renin
Answer
Correct option: D.
Renin
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MCQ 231 Mark
$\text{ADH}$ or vasopressin is:
  • A
    Enzyme that hydrolyses peptides.
  • ✓
    Hormone secreted by pituitary that promotes reabsorption of water from glomerular filtrate.
  • C
    Hormone that promotes glycogenolysis.
  • D
    Energy rich compound connected with muscle contraction.
Answer
Correct option: B.
Hormone secreted by pituitary that promotes reabsorption of water from glomerular filtrate.
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MCQ 241 Mark
Hypophysis is an alternative name for:
  • A
    Thyroid gland
  • ✓
    Pituitary gland
  • C
    Thymus gland
  • D
    Pineal gland
Answer
Correct option: B.
Pituitary gland
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MCQ 251 Mark
What is the function of Atrial Natriuretic Factor $\text{(ANF)}?$
  • ✓
    Decreased blood pressure.
  • B
    Increased blood pressure.
  • C
    Decreased heart rate.
  • D
    Increased heart rate.
Answer
Correct option: A.
Decreased blood pressure.
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MCQ 261 Mark
Which hormone interacts with membrane bound receptor and does not normally enter the target cell?
  • ✓
    Follicle stimulating hormone.
  • B
    Estrogen.
  • C
    Thyroxin.
  • D
    Cortisol.
Answer
Correct option: A.
Follicle stimulating hormone.
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MCQ 271 Mark
The blood calcium level is lowered by the deficiency of:
  • A
    Thyroxine.
  • B
    Both calcitonin and parathormone.
  • C
    Calcitonin.
  • ✓
    Parathormone.
Answer
Correct option: D.
Parathormone.
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MCQ 281 Mark
In the mechanism of action of a protein hormone, one of the second messengers is:
  • ✓
    Cyclic $\text{AMP}.$
  • B
    Insulin.
  • C
    $T_3$.
  • D
    Gastrin
Answer
Correct option: A.
Cyclic $\text{AMP}.$
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MCQ 291 Mark
Chemically hormones are:
  • ✓
    Proteins, steroids and biogenic amines.
  • B
    Proteins only.
  • C
    Steroids only.
  • D
    Biogenic amines only.
Answer
Correct option: A.
Proteins, steroids and biogenic amines.
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MCQ 301 Mark
Addition of a trace of thyroxine or iodine in water containing tadpoles will:
  • A
    Keep them in larval stage.
  • ✓
    Hasten their metamorphosis.
  • C
    Slow down their metamorphosis.
  • D
    Kill the tadpoles.
Answer
Correct option: B.
Hasten their metamorphosis.
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MCQ 311 Mark
Daily rhythms are usually associated with:
  • ✓
    Pineal
  • B
    Pituitary
  • C
    Thymus
  • D
    Thalamus
Answer
Correct option: A.
Pineal
The pineal gland is a small endocrine gland in the vertebrate brain. It produces melatonin, a serotonin derived hormone, that affects the modulation of sleep patterns in both seasonal and circadian rhythms.
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MCQ 321 Mark
Parathormone induces which of the following function?
  • ✓
    Increase in serum calcium level.
  • B
    Decrease in serum potassium leel.
  • C
    Increase in blood sugar level.
  • D
    Decrease in blood sugar level.
Answer
Correct option: A.
Increase in serum calcium level.
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MCQ 331 Mark
Calcitonin, a thyroid hormone.
  • A
    Elevates calcium level in blood.
  • ✓
    Lowers calcium level in blood.
  • C
    Elevates potassium level in blood.
  • D
    Controls $Na^+  - K^+$ balance.
Answer
Correct option: B.
Lowers calcium level in blood.
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MCQ 341 Mark
A person is having problems with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?
  • ✓
    Parathyroid
  • B
    Parotid
  • C
    Pancreas
  • D
    Thyroid
Answer
Correct option: A.
Parathyroid
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MCQ 351 Mark
The immune system becomes weak in older persons. Which of the following is a cause for this?
  • A
    Increased secretion of thymus.
  • ✓
    Decreased secretion of thymus.
  • C
    Increased secretion of thyroid hormone.
  • D
    Decreased secretion of thyroid hormone.
Answer
Correct option: B.
Decreased secretion of thymus.
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MCQ 361 Mark
Which one of the following hormones is not involved in sugar metabolism?
  • A
    Glucagon
  • B
    Cortisone
  • ✓
    Aldosterone
  • D
    Insulin
Answer
Correct option: C.
Aldosterone
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MCQ 371 Mark
Testosterone is produced by:
  • ✓
    Leydig’s cells.
  • B
    Pituitary gland.
  • C
    Both.
  • D
    None of these.
Answer
Correct option: A.
Leydig’s cells.
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MCQ 381 Mark
The hormone that increases the rate of heartbeat and blood pressure after shock in a person is:
  • A
    Throxin
  • ✓
    Adrenalin
  • C
    Pancreatin
  • D
    Gastrin
Answer
Correct option: B.
Adrenalin
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MCQ 391 Mark
The $24$ hour $($diurnal$)$ rhythm of our body such as the sleepwake cycle is regulated by the hormone.
  • A
    Prolactin
  • B
    Adrenaline
  • C
    Calcitonin
  • ✓
    Melatonin
Answer
Correct option: D.
Melatonin
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MCQ 401 Mark
Select the right match of endocrine gland and their hormone among the options given below:
$a.$ Pineal $i.$ Epinephrine
$b.$ Thyroid $ii.$ Melatonin
$c.$ Ovary $iii.$ Estrogen
$d.$ Adrenal medulla $iv.$ Tetraiodothyronine
Options:
  • A
    $\text{A (iv), B (ii), C (iii), D (i).}$
  • B
    $\text{A (ii), B (iv), C (i), D (iii).}$
  • C
    $\text{A (iv), B (ii), C (i), D (iii).}$
  • ✓
    $\text{A (ii), B (iv), C (iii), D (i).}$
Answer
Correct option: D.
$\text{A (ii), B (iv), C (iii), D (i).}$
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MCQ 411 Mark
Secretin and cholecystokinin are produced from:
  • A
    Pyloric stomach.
  • ✓
    Duodenum.
  • C
    Adrenal medulla.
  • D
    Stomach.
Answer
Correct option: B.
Duodenum.
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MCQ 421 Mark
Glucagon hormone is secreted by the $.......$
  • A
    Thyroid gland.
  • B
    Adrenal gland.
  • C
    Pituitary gland.
  • ✓
    Pancreas.
Answer
Correct option: D.
Pancreas.
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MCQ 431 Mark
Islets of Langerhans occur in $...........:$
  • A
    Liver
  • B
    Stomach
  • ✓
    Pancreas
  • D
    Alimentary canal
Answer
Correct option: C.
Pancreas
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MCQ 441 Mark
Diurnal rhythm of the body is maintained by:
  • ✓
    Melatonin
  • B
    Isthmus
  • C
    $\text{PTH}$
  • D
    Norepinephrine
Answer
Correct option: A.
Melatonin
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MCQ 451 Mark
Which of the following is secreted at ends of nerve fibres?
  • A
    Ascorbic acid
  • B
    Acetic acid
  • C
    Acetyl $\text{COA}$
  • ✓
    Acetylcholine
Answer
Correct option: D.
Acetylcholine
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MCQ 461 Mark
A common scent$-$producing gland among mammals is:
  • ✓
    Anal gland.
  • B
    Prostate gland.
  • C
    Adrenal gland.
  • D
    Bartholin’s gland.
Answer
Correct option: A.
Anal gland.
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MCQ 471 Mark
If parathyroid gland of a child is removed, which of the following is disturbed?
  • A
    Growth
  • ✓
    Calcium concentration
  • C
    Potassium concentration
  • D
    All of the above
Answer
Correct option: B.
Calcium concentration
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MCQ 481 Mark
Acromegaly is caused by:
  • ✓
    Excess of $\text{STH}.$
  • B
    Excess of thyroxin.
  • C
    Deficiency of thyroxin.
  • D
    Excess of adrenalin.
Answer
Correct option: A.
Excess of $\text{STH}.$
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MCQ 491 Mark
The $24$ hour $($diurnal$)$ rhythm of our body such the sleep awake cycle is regulated by the hormone.
  • ✓
    Melatonin
  • B
    Calcitonin
  • C
    Prolactin
  • D
    Adrenaline
Answer
Correct option: A.
Melatonin
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MCQ 501 Mark
Increase in bleeding time and delay in blood coagulation is due to the deficiency of which hormone?
  • A
    Adrenaline
  • B
    Noradrenaline
  • ✓
    Parathormone
  • D
    Thyroxine
Answer
Correct option: C.
Parathormone
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