Free Digestion MCQs with Answers

• A. Blockage of coronary arteries
• B. Burning sensation in esophagus
• C. A pain of chest muscles
• D. A respiratory disorder

Explanation: A burning sensation in the esophagus is often referred to as heartburn. It is caused by stomach acid backing up into the esophagus.

• A. Stomach
• B. Esophagus
• C. Intestine
• D. Ceacum

Explanation: Chief cells are found in the fundus and corpus of the stomach. They are the most abundant type of cell in the gastric glands, which are…

• A. Amylopectin
• B. Amylopsin
• C. Amyloid
• D. Heparin

Explanation: Pancreatic amylase is also called amylopsin. It is an enzyme that is produced by the pancreas and is found in the small intestine.

• A. Erypsin
• B. Pepsin
• C. Trypsin
• D. Chymotrypsin

Explanation: The action of proteases gives amino acids. Proteases are a group of enzymes that break down proteins into smaller molecules, including…

• A. Blood capillaries
• B. Ileum
• C. Epithelial cells of jejunum
• D. Heum

Explanation: The proteins combine with fat molecules to form lipoprotein droplets in the intestinal cells.

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

Explanation: The bacteria in the large intestine synthesize some vitamins, especially vitamin K. Vitamin K: Vitamin K is important for blood clotting.

• A. Vomiting
• B. Appendicitis
• C. Constipation
• D. Food poisoning

Explanation: Constipation is a common digestive problem that affects people of all ages.

• A. Oral cavity
• B. Esophagus
• C. Small intestine
• D. Large intestine

Explanation: Peristalsis does not occur in the oral cavity. The oral cavity is the first part of the digestive tract, and it is where food is chewed…

• A. Both B and T lymphocytes
• B. Monocytes
• C. B-lymphocytes
• D. T-lymphocytes

Explanation: This type of rejection occurs within days or weeks of transplantation. It is caused by T cells, which are a type of white blood cell that…

• A. Stomach
• B. Pancreas
• C. Small intestine
• D. Large intestine

Explanation: This is because the small intestine contains a protease called enterokinase, which can activate trypsinogen to trypsin.

• A. Pepsinogen
• B. Mucus
• C. HCL
• D. Intrinsic factor

Explanation: Zymogen cells, also known as chief cells, secrete pepsinogen and chymosin.

• A. Cholecystokinin
• B. Secretin
• C. Mucus
• D. Biliverdin

Explanation: Out of all the options mentioned above, biliverdin is the only one that is not produced by duodenum.

• A. Starch
• B. Cellulose
• C. Protein
• D. Lipid

Explanation: Salivary amylase is secreted by salivary glands present in the buccal cavity.

• A. Mucus
• B. Chief
• C. Zymogen
• D. Parietal

Explanation: Parietal cells are found in the stomach lining. These cells secrete HCl, which is a strong acid, which creatse an acidic medium in the…

• A. Polypeptide
• B. Dipeptide
• C. Peptone
• D. All

Explanation: Erypsin converts dipeptides into amino acids.

• A. Small intestine
• B. Cecum
• C. Colon
• D. Rectum

Explanation: In the ailmentary canal, food travels into the small intestine after passing through the stomach.

• A. It is produced in inactivated form
• B. It is produced form esophagus
• C. It requires basic medium
• D. It is an apoenzyme

Explanation: Option A is correct as pepsin is a protease which is produced in its inactive form as pepsinogen by the chief cells.

• A. Food from stomach
• B. Bile form liver
• C. Pancreatic juice
• D. All of these

Explanation: The secretion of secretin is only forced by the presence of acidic chyme in the duodenum.

• A. Anemia
• B. Beriberi
• C. Food Poisoning
• D. Constipation

Explanation: Botulism is a rare but serious condition caused by a toxin produced by a bacteria called Clostridium botulinum that attacks the body's…

• A. Anorexia nervosa
• B. Bulimia nervosa
• C. Both A and B
• D. Constipation

Explanation: Option C is correct as both anorexia nervosa and bulimia nervosa are eating disorders that lead to a decline in body weight.