Digestion and absorption practice · Easy

Option C (Horse) is correct because horses exhibit diphyodont dentition, meaning they have two sets of teeth in their lifetime (deciduous and permanent).

Option C (Acidic) is correct because pepsin, a protease, functions optimally in the acidic environment of the stomach.

Option B (25-30%) is correct because in humans, salivary amylase in the mouth digests approximately 25-30% of carbohydrates.

Option C (Kupffer’s cells) is correct because Kupffer's cells are specialized macrophages located in the liver that engulf and destroy old blood cells, bacteria, and other foreign materials.

Option C (both 1&2) is correct because chief cells are also known as peptic cells and zymogen cells, as they secrete pepsinogen, a zymogen.

Option C (Ileum is a highly coiled part) is correct because the ileum, the last part of the small intestine, is indeed highly coiled to increase surface area for absorption.

The correct answer is C (Root canals) because root canals are the narrow extensions of the pulp cavity that extend into the roots of the teeth.

Option D (Gout) is correct because gout is a type of arthritis caused by the buildup of uric acid crystals in the joints, and it is not directly associated with the digestive system.

Option B (All the four layers of gut show modifications in different parts of the alimentary canal) is correct because the layers of the gut are modified to perform specific functions in different regions.

Option A (Cholecystokinin $\to$ Panereas and gall bladder) is correct because CCK stimulates the pancreas and gall bladder.

The correct answer is B (Parietal cells (oxyntic cells)) because parietal cells, also known as oxyntic cells, are responsible for secreting hydrochloric acid (HCl) in the stomach.

Option C (Canines) is correct because rabbits lack canine teeth, possessing incisors, premolars, and molars.

Option D (Both statement I and statement II are correct) is correct because bile emulsifies fats, breaking them into smaller molecules for lipase digestion.

Option B (Iron, iodine, manganese, copper, zinc, fluorine) is correct because these are trace elements required in very small amounts by the human body.

Option B (Bile, pancreatic juices and intestinal juices) is correct because these secretions contain the necessary enzymes and substances for the complete digestion of food in the small intestine.

Option A (Marasmus) is correct because marasmus is a severe form of malnutrition characterized by energy deficiency, leading to wasting of muscle and tissues, often occurring when breast feeding is replaced by inadequate food.