Test your knowledge on the human digestive system with our MCQ on Human Digestive System.
MCQ on Human Digestive System
1. Which of the following is NOT considered an accessory organ of the digestive system?
a) Liver
b) Pancreas
c) Stomach
d) Gallbladder
Answer: c) Stomach
2. Where does the process of digestion primarily begin?
a) Small intestine
b) Large intestine
c) Mouth
d) Stomach
Answer: c) Mouth
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3. Which organ stores bile and releases it when needed for fat digestion?
a) Liver
b) Pancreas
c) Gallbladder
d) Stomach
Answer: c) Gallbladder
4. Which of the following is NOT a function of the human digestive system?
a) Absorption of nutrients
b) Regulation of body temperature
c) Digestion of food
d) Excretion of waste products
Answer: b) Regulation of body temperature
5. What is the role of hydrochloric acid in the stomach during digestion?
a) Protecting the stomach lining
b) Breaking down food particles
c) Producing mucus
d) Storing bile
Answer: b) Breaking down food particles
6. Where does absorption of most nutrients occur in the digestive system?
a) Stomach
b) Small intestine
c) Large intestine
d) Oesophagus
Answer: b) Small intestine
7. What is the final step of the digestion process?
a) Absorption
b) Ingestion
c) Secretion
d) Excretion
Answer: d) Excretion
8. Which disorder is characterized by abnormal watery bowel movements?
a) Constipation
b) Indigestion
c) Diarrhoea
d) Vomiting
Answer: c) Diarrhoea
9. Which part of the nervous system controls the peristalsis in the digestive tract?
a) Central nervous system
b) Autonomic nervous system
c) Peripheral nervous system
d) Enteric nervous system
Answer: b) Autonomic nervous system
10. What is the primary function of the alimentary canal?
a) Storage of food
b) Absorption of nutrients
c) Secretion of enzymes
d) Elimination of waste
Answer: b) Absorption of nutrients
11. Which organ releases digestive enzymes to complete the process of chemical digestion?
a) Liver
b) Pancreas
c) Stomach
d) Gallbladder
Answer: b) Pancreas
12. What is the role of the rectum in the digestive system?
a) Absorbing nutrients
b) Storing bile
c) Eliminating waste as stool
d) Producing digestive enzymes
Answer: c) Eliminating waste as stool
13. What is the primary function of the liver in the digestive system?
a) Producing bile
b) Absorbing nutrients
c) Storing food
d) Secreting enzymes
Answer: a) Producing bile
14. Which part of the digestive system serves as a muscular bag that acts as a storage for food and produces digestive enzymes?
a) Small intestine
b) Large intestine
c) Stomach
d) Oesophagus
Answer: c) Stomach
15. What is the main function of the large intestine in the digestive system?
a) Absorbing nutrients
b) Producing digestive enzymes
c) Storing bile
d) Absorbing water and forming stool
Answer: d) Absorbing water and forming stool
16. Which step of the digestion process involves breaking down food particles into simpler substances with the help of enzymes and acids?
a) Ingestion
b) Secretion
c) Digestion
d) Absorption
Answer: c) Digestion
17. What is the term for the process of removing indigestible substances and waste by-products from the body?
a) Ingestion
b) Secretion
c) Absorption
d) Excretion
Answer: d) Excretion
18. Which disorder is characterized by a condition in which the faeces are clutched within the rectum due to irregular bowel movements?
a) Vomiting
b) Diarrhoea
c) Constipation
d) Indigestion
Answer: c) Constipation
19. Which system controls the peristalsis, contraction, and relaxation of muscles within the alimentary canal wall?
a) Central nervous system
b) Autonomic nervous system
c) Peripheral nervous system
d) Enteric nervous system
Answer: d) Enteric nervous system
20. What is the primary function of the alimentary canal?
a) Storage of food
b) Absorption of nutrients
c) Secretion of enzymes
d) Elimination of waste
Answer: b) Absorption of nutrients