Digestive System MCQs with Answers

Undigested food is expelled from the human body through ?

• A.Small Intestine
• B.Liver
• C.Stomach
• D.Large Intestine

Which organs in the mouth are primarily responsible for breaking down food to make it easier to swallow?

• A.Saliva, throat, and esophagus
• B.Teeth, gums, and palate
• C.Tongue, lips, and cheeks
• D.Teeth, tongue, and saliva

Pepsin is a _ and secreted by _?

• A.Hormone-Liver
• B.Enzyme-Stomach
• C.Enzyme-Pancreas
• D.Hormone-Stomach

Food is reduced to a soft and flexible semi-solid food called?

• A.Chyme
• B.Roughage
• C.Chyle
• D.Bolus

Bile is a digestive fluid produced by the liver. Which one of the following stores bile?

• A.Liver
• B.Gall bladder
• C.Pancreas
• D.Small intestine

Brunner's glands and crypts of Lieberkühn are found in ?

• A.Stomach
• B.Duodenum
• C.Jejunum
• D.Ileum

Food is pushed along the alimentary canal by which mechanism of alternating waves of contraction and relaxation in the smooth muscles lining the canal?

• A.Segmentation
• B.Peristalsis
• C.Emulsification
• D.Osmosis

Foods eaten by animals are most often composed largely of macromolecules. This requires the animals to have methods for which of the following?

• A.Enzymatic hydrolysis
• B.Active transport
• C.Oxidative phosphorylation
• D.Facilitated diffusion

Which of the following is an example of catabolism?

• A.Protein synthesis
• B.Photosynthesis
• C.Digestive system
• D.Bone formation

Past Paper MCQ

Goblet cells produce?

• A.Gastric acid
• B.Bile
• C.Insulin
• D.Mucus