Free Digestion MCQs with Answers

• A. Zymogen
• B. Oxyntic
• C. Mucous
• D. Gastric

Explanation: The mucosa of the stomach possesses numerous tubular gastric glands composed of three kinds of cells: mucous cells that secrete mucus…

• A. A
• B. B
• C. C
• D. D

Explanation: B is incisor.(ANS)A is premolar.D is Molar.C is canine.

• A. A
• B. B
• C. C
• D. D

Explanation: Vitamin A (Retinol) is important for normal vision. Its deficiency can cause night blindness.

• A. Vitamin K
• B. Vitamin E
• C. Vitamin D
• D. Vitamin C

Explanation: Many bacteria, including Escherichia coli found in the large intestine, can synthesize vitamin K.

• A. Crop
• B. Rectum
• C. Gizzard
• D. Crop & Rectum

Explanation: The three parts into which the alimentary canal is divided are the foregut, midgut, and hindgut.

• A. Pancreas
• B. Liver
• C. Stomach
• D. Duodenum

Explanation: The Parietal cells of the stomach are responsible for the production of the 'Intrinsic Factor', which is a glycoprotein in nature…

• A. Pepsinogen, pepsin
• B. Trypsinogen, trypsin
• C. Pepsinogen, trypsin
• D. Chymotrypsinogen, chymotrypsin

Explanation: Trypsinogen is a zymogen or inactive precursor of trypsin. It is activated to trypsin by enterokinase/enteropeptidase enzyme secreted by…

• A. Bulimia nervosa
• B. Anorexia nervosa
• C. Dyspepsia
• D. Obesity

Explanation: Fear of getting obese is termed as anorexia nervosa, which is an eating disorder characterized by an abnormally low body weight, an…

• A. Zymogenic
• B. Parietal
• C. Sinusoidal
• D. Mucous neck

Explanation: The gastric gland contains four types of cells: parietal cells, chief cells, mucous neck cells, and enteroendocrine cells.

• A. Secretin
• B. Gastrin
• C. Pepsinogen
• D. Both secretin and gastrin

Explanation: The secretion of pancreatic juice is stimulated by the hormones secretin.

• A. Hard palate
• B. Epiglottis
• C. Soft palate
• D. Larynx

Explanation: The epiglottis is a flap of tissue that covers the trachea during swallowing, preventing food from entering the respiratory passage.

• A. Gastrin
• B. Secretin
• C. Thyroxine
• D. Iodothyronine
• E. Parathormone

Explanation: Option A: The hormone that controls the secretion of gastric juice is called gastrin.

• A. 2
• B. 4
• C. 3
• D. 1

Explanation: There are three main sites of digestion in the human digestive system: the mouth, stomach, and small intestine.

• A. Lips
• B. Tongue
• C. Teeth
• D. Cheeks

Explanation: Option A: The lips help to hold food in place while it is being chewed.

• A. Villi
• B. Microvilli
• C. Folds
• D. Crypts

Explanation: Villi are finger-like projections that line the small intestine. They are about 1 mm long and 0.5 mm wide.

• A. Glucose to glycogen
• B. Lactic acid to glycogen
• C. Glycogen to glucose
• D. Amino acid to glycogen

Explanation: Glycogen is the conversion of glucose to glycogen when the glucose in the body exceeds the required amount.

• A. Chymotrypsin
• B. Enteropeptidase
• C. Trypsin
• D. HCl

Explanation: Trypsinogen is activated by enterokinase also known as enteropeptidase.

• A. Produces bile
• B. Stores bile
• C. Secretes lipase
• D. Secretes bicarbonate
• E. Secretes HCl

Explanation: Option B: Structure 9 represents the gall bladder. The gallbladder is a small pear-shaped organ located beneath the liver on the right…

• A. Pitcher plant
• B. Sundew
• C. Lichens
• D. Leguminous plants

Explanation: Pitcher plants are several different carnivorous plants which have modified leaves known as pitfall traps-a prey-trapping mechanism…

• A. In crop
• B. In gizzard
• C. In mesenteron
• D. In esophagus

Explanation: Maximum digestion takes place in mesenteron of a cockroach. Mesenteron also called the midgut functions mainly for digestion.