Science MCQ (1 Marks)

Salivary glands are located in the mouth. There are three pairs of large salivary glands.
Parotid glands are found in front of and just below each ear. Submandibular glands are below the jaw.

Pseudopodia.

Amoeba

All statements are correct. Hence, your answer will be.

Saliva.

Large intestine.

Liver

Cud is the partially digested food in the rumen of ruminants like cow.

The saliva contains amylase enzyme that breaks down starch into simple sugar.

Digestion

Salivary glands are located in the mouth. There are three pairs of large salivary glands. Parotid glands are found in front of and just below each ear. Submandibular glands are below the jaw.

Food vacuole

Starch

Human beings do not have cellulose digesting enzymes called cellulase but cellulose. is still a very important part of human diet. If forms a major part of roughage that is essential for proper digestion.

Pseudopodia

Bile plays an important role in the digestion of fats.

The first set of teeth grows during infancy and they fall off at the age between six to eight years. These are termed as milk teeth.

Tastes like sweet, salt, sour, bitter are sensed by all the sides of the tongue but the back of the tongue is very sensitive to bitter tastes.

Incisors (8 total): The middlemost four teeth on the upper and lower jaws.

Starch is the odd one. It is a type of carbohydrate. All the others are parts of digestive system of human beings.

Euglena

Left over food in teeth release acids which gradually damages teeth.

Salivary gland

Food is stored in the plants as cellulose. Cellulase is an enzyme synthesized by bacteria in stomach of ruminant which is used to digest cellulose. Humans do not have cellulase and hence they cannot digest cellulose.

Amoeba.

Oesophagus. Large Intestine, Rectum" does not perform any digestive function in the human body. Oesophagus transfers food from the mouth to the stomach.
In the large intestine, a huge portion of the water from undigested food material is absorbed. The rectum is termed as storage of undigested food till egestion.

The proteins into simpler substances.

Gall bladder.

Euglena

Digestion of carbohydrate like starch begins in the buccal cavity and the digestion of protein starts in the stomach.

The bacteria break down the sugars present from the leftover food and release acids. The acids gradually damage the teeth. This is called tooth decay.
If it is not treated in time, it causes severe toothache and in extreme cases results in tooth loss. Chocolates, sweets, soft drinks and other sugar products are the major culprits of tooth decay Thus.

Digestion

Milk teeth

None of the above.

Pancreas

Pancreatic juice is a liquid secreted by the pancreas, which contains a variety of enzymes. The pancreatic juice which helps the digestion of starch, called pancreatic amylase. Lipase, helps the digestion of fats and “trypsin” helps the digestion of proteins. The pancreas is located in the visceral region, and is a major part of the digestive system required for proper digestion. Hence, pancreatic juice act on carbohydrates, proteins and fats.

Rumination.

Sweet

Hiccups and cough.