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MCQ on Digestive System with Answers

MCQ on digestive system with answers can help students evaluate their knowledge of concepts in human physiology. Answers are also given for MCQ on human digestive system to help you remember. Try our MCQ on human digestive system to see if you can get all the answers right for the questions below.

MCQ on Digestive System with Answers

The digestive system of the human body is made up of a collection of organs that work together to convert food into energy for the body. 

MCQ on Human Digestive System

1. In which area of the body does protein digestion begin?

  1. Pancreas
  2. Stomach
  3. Small Intestine
  4. Large Intestine

2. Name the largest part of the Alimentary canal?

  1. Large Intestine
  2. Small Intestine
  3. Liver
  4. Stomach

3. Complete digestion of food occurs in:

  1. Stomach
  2. Small Intestine
  3. Pancreas
  4. Large Intestine

4. What is the purpose of Bile Juice, which is secreted by the liver?

  1. It makes the food alkaline.
  2. It makes the food acidic.
  3. It breaks down the food.
  4. None of the above

5. What is the toughest substance in the human body?

  1. Dentin
  2. Pulp
  3. Enamel
  4. None of the above

6. Where does food get absorbed in our bodies?

  1. Small Intestine
  2. Large Intestine
  3. Stomach
  4. Liver

7. The undigested food retained in the liver as carbohydrate is referred to as

  1. Pulp
  2. Glucose
  3. Glycogen
  4. Carbohydrate

8. What are the Glands of the Human Digestive System called?

  1. Salivary Glands and Pancreas
  2. Salivary Glands and Liver
  3. Liver and Pancreas
  4. Salivary Glands, Liver & Pancreas

9. In which area of the body does protein digestion begin?

  1. Pancreas
  2. Stomach
  3. Small Intestine
  4. Large Intestine

10. Which is the right pairing of rennin’s action site and substrate?

  1. Mouth-starch
  2. Stomach-fat
  3. Stomach-casein
  4. Small intestine-casein

11. What is common among amylase, rennin and trypsin?

  1. These are produced in stomach
  2. These act at a pH lower than 7
  3. These all are proteins
  4. These all are proteolytic enzymes

12. Which does not play a role in the stimulation of pancreatic juice release?

  1. Gastrin
  2. Secretin
  3. Trypsinogen
  4. Cholecystokinin

13. Where is protein digestion accomplished?

  1. Stomach
  2. Ileum
  3. Rectum
  4. Duodenum

14. Most of the fat digestion occurs in

  1. Rectum
  2. Stomach
  3. Duodenum
  4. Small intestine

15. When the pancreas is removed, the compounds that are left undigested are

  1. Proteins
  2. Carbohydrates
  3. Fats
  4. All of these

Answer Key

  1. Stomach
  2. Small Intestine
  3. Small Intestine
  4. It makes the food alkaline
  5. Enamel
  6. Small Intestine
  7. Glycogen
  8. Salivary Glands, Liver & Pancreas
  9. Stomach
  10. Stomach-casein
  11. These all are proteins
  12. Trypsinogen
  13. Ileum
  14. Small intestine
  15. All of these

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Further Readings

Reference

  1. Kotpal RL. 2017. Modern Text Book of Zoology- Invertebrates. 11th Edition. Rastogi Publications.
  2. Jordan EL and Verma PS. 2018. Invertebrate Zoology. 14th Edition. S Chand Publishing.