What are the tiny finger-like projections called that are inside the small intestine? These tiny finger-like projections absorb the nutrients form the food and send the vitamins, minerals, proteins, carbohydrates and fats into our bloodstream:

(1) Esophagus

(2) Arteries

(3) Villi

(4) Flagella

The initial step in the digestion of milk in infants is carried out by?

(1) Lipase

(2) Trypsin

(3) Rennin

(4) Pepsin

How is the digestion of fats different from that of proteins and carbohydrates?

(1) Fat digestion occurs in the small intestine, and the digestion of proteins and carbohydrates occurs in the stomach

(2) Fats are absorbed into the cells as fatty acids and monoglycerides but are then modified for absorption into the blood; amino acids and glucose are not modified further

(3) Fats enter the hepatic portal circulation, but digested proteins and carbohydrates enter the lymphatic system

(4) Digested fats are absorbed in the large intestine, and digested proteins and carbohydrates are absorbed in the small intestine

Assertion      :       Chewing is one of the important process of digestion in animals.

Reason         :       It helps in enzyme action.

Assertion      :       Presence of HCl in stomach is necessary for the process of digestion.

Reason         :       HCl kills and inhibits the growth of bacteria in the stomach.

Assertion      :       Adult human being is not perfect in digestion of milk.

Reason         :       With age, man produces little or no lactase in the intestinal juice.

Assertion      :       Many tube like glands are present in the wall of small intestine.

Reason         :       These glands secrete enzymes DNAse and RNAse into the intestinal juice.

Assertion      :       Rumen of alimentary canal of ruminant animals harbour numerous bacteria and protozoa.

Reason         :       Bacteria and protozoa help in the secretion of gastric juice in the rumen.

Assertion      :       Lipases of bile help in the emulsification of fats.

Reason         :       Lipases can break large fat droplets into smaller ones.

Assertion      :       Hepatopancreas of prawn is equivalent to the liver and pancreas of higher animals.

Reason         :       Hepatopancreas stores the absorbed nutrients from stomach and midgut.