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 Multiple Choice QuestionsMultiple Choice Questions


The pylorous is the constricted part of the alimentary canal which is situated between

  • stomach and duodenum

  • oesophagus and stomach

  • duodenum and ileum

  • ileum and rectum


stomach and duodenum

Pylorous is constricted part of the alimentary canal present between stomach and duodenum. It is a cone- shaped constriction in the gastro- intestinal tract that connects to the duodenum.


The intestinal juice, succus entericus is secreted by

  • Brunner's gland

  • Kupffer cells

  • crypts of Leiberkuhn

  • goblet cells


crypts of Leiberkuhn

Crypts of Leiberkuhn are multicellular, simple, tubular glands. The secretion of glands collectively called intestinal juices or succus entericus.

Brunner's glands are compound tubular sub- mucosal glands found in the portion of the duodenum.

Kupffer cells are the specialised macrophages loacted in the liver, lining the walls of the sinusoids.


Fatty acids are absorbed by the

  • lacteals

  • pylorous

  • colon

  • capillaries



Lacteals are present in villus absorbed the fatty acids and glycerol molecules.

Pylorus is the opening from the stomach into the duodenum. It prevents intestinal contents from re- entering the stomach.

Colon is a part of large intestine. Its function is to reabsorb fluids and process waste products.

Capillary is a small blood vessel. They are the sites of transfer of oxygen and other nutrients from the bloodstream to other tissues in the body.


Hydrochloric acid in the stomach is secreted by some special type of cells called

  • peptic cells

  • goblet cells

  • oxyntic cells

  • gastric cells


oxyntic cells

Parietal cells or oxyntic cells are the epithelial cells that secrete hydrochloric acid and intrinsic factor. These cells are located in the gastric glands found in the lining of the fundus and in the cardia of the stomach.

These cells produce gastric acids.

Peptic cell is a cell in the stomach that releases pepsinogen and chymosin.

Goblet cells are found in the epithelium of many organs. Their main role is to secrete mucus in order to protect the mucous membranes.


In horses, rabbits, hares the cellulose gets digested in the

  • caecum

  • stomach

  • appendix

  • rumen



Caecum is a small, pouch-like structure which ends into a tubular structure called vermiform appendix.


Which of the following teeth are lophodont?

  • Incisor and canine

  • Canine and premolar

  • Premolar and molar

  • Premolar and incisor


Premolar and molar

The premolars and molars are called cheek teeth. These are also called Iophodont teeth. Their free ends are flattened and bear transverse ridges to crush and grind the food.


A secretion that digests both carbohydrates and proteins is

  • ptyalin

  • pepsin

  • pancreatic juice

  • saliva


pancreatic juice

Pancreatic juice acts upon both carbohydrates and proteins.


Villi are present in

  • large intestine

  • small intestine

  • colon

  • stomach


small intestine

Villi are present in small intestine. They increase surface area which is helpful in absorption.


Food is move along the alimentary canal by the contraction known as

  • peristalsis

  • epiglottis

  • osmosis

  • cyclosis



Peristalsis is a involuntary movements of gut by which food bolus is moved backword. It is least in rectum.


Which of the following digestive juices has the minimum pH value?

  • Bile

  • Gastric juice

  • Saliva

  • Pancreatic juice


Gastric juice

Bile is an alkaline viscous fluid, yellow to green in colour and having a pH of 7.8- 8.6.

Saliva is secreted by salivary gland and its pH is about 6.8.

Gastric juice is secreted by the gastric gland in stomach and its pH value is 1- 2.5.

Pancreatic juice is colourless watery fluid and slightly alkaline. Its pH is 7.5-8.0.

Therefore, gastric juice has minimum pH value.