MCQs to Test Your Knowledge of the Digestive System: MCQ on Digestive System With Answers

MCQ on digestive system: The digestive system is a complex network of organs and tissues that work together to break down food and extract nutrients. It is an essential system for human survival, and a thorough understanding of its function is vital for healthcare professionals and anyone interested in human biology. Multiple-choice questions (MCQs) are an effective way to evaluate one’s knowledge of the digestive system. They test a broad range of concepts, including the anatomy of the digestive tract, the physiology of digestion, and common digestive disorders. In this article, we present MCQ on the digestive system, complete with answers to help you test and improve your knowledge of this important topic. 

MCQ on Digestive System: Attempt MCQ Now!

Q1 What is the main function of the digestive system?

1. a) To regulate body temperature
2. b) To break down food and extract nutrients
3. c) To circulate blood throughout the body
4. d) To provide structural support for the body

Answer: b) To break down food and extract nutrients.

Q2 Which of the following is not part of the digestive tract?

1. a) Esophagus
2. b) Stomach
3. c) Liver
4. d) Small intestine

Answer: c) Liver.

Q3 Where does the majority of nutrient absorption occur in the digestive system?

1. a) Stomach
2. b) Small intestine
3. c) Large intestine
4. d) Mouth

Answer: b) Small intestine.

Q4 What is the function of bile?

1. a) To break down carbohydrates
2. b) To neutralize stomach acid
3. c) To emulsify fats
4. d) To produce enzymes for digestion

Answer: c) To emulsify fats.

Q5 Which of the following is a common digestive disorder?

1. a) Celiac disease
2. b) Sickle cell anemia
3. c) Multiple sclerosis
4. d) Diabetes mellitus

Answer: a) Celiac disease.

Q6 Which of the following is an accessory organ of the digestive system?

1. a) Pancreas
2. b) Stomach
3. c) Small intestine
4. d) Large intestine

Answer: a) Pancreas.

Q7 What is peristalsis?

1. a) The movement of food through the digestive tract
2. b) The breakdown of food into smaller molecules
3. c) The absorption of nutrients into the bloodstream
4. d) The production of digestive enzymes

Answer: a) The movement of food through the digestive tract.

Q8 What is the function of the stomach?

1. a) To absorb nutrients
2. b) To secrete digestive enzymes
3. c) To store and churn food
4. d) To absorb water

Answer: c) To store and churn food.

Q9 What is the function of the pyloric sphincter?

1. a) To control the release of bile
2. b) To control the release of pancreatic enzymes
3. c) To control the release of food from the stomach to the small intestine
4. d) To control the release of waste products from the large intestine

Answer: c) To control the release of food from the stomach to the small intestine.

Q10 What is the function of the colon?

1. a) To absorb nutrients
2. b) To produce bile
3. c) To store waste products
4. d) To produce digestive enzymes

Answer: c) To store waste products.

Q11 What is the primary function of the small intestine?

1. a) To secrete digestive enzymes
2. b) To absorb nutrients
3. c) To store waste products
4. d) To produce bile

Answer: b) To absorb nutrients.

Q12 Which of the following is a common symptom of acid reflux?

1. a) Diarrhea
2. b) Constipation
3. c) Heartburn
4. d) Abdominal pain

Answer: c) Heartburn.

Q13 What is the function of the pancreas in the digestive system?

1. a) To secrete digestive enzymes
2. b) To store waste products
3. c) To absorb nutrients
4. d) To produce bile

Answer: a) To secrete digestive enzymes.

Q14 What is the function of the gallbladder?

1. a) To secrete digestive enzymes
2. b) To store bile
3. c) To absorb nutrients
4. d) To produce stomach acid

Answer: b) To store bile.

Q15 Which of the following is not a function of the liver in the digestive system?

1. a) To produce bile
2. b) To store glucose
3. c) To detoxify harmful substances
4. d) To secrete digestive enzymes

Answer: d) To secrete digestive enzymes.

Q16 What is the role of the enteric nervous system in the digestive system?

1. a) To regulate the release of digestive enzymes
2. b) To regulate the movement of food through the digestive tract
3. c) To absorb nutrients from digested food
4. d) To produce bile for fat digestion

Answer: b) To regulate the movement of food through the digestive tract.

Q17 What is the function of the gastroesophageal sphincter?

1. a) To control the release of food from the stomach to the small intestine
2. b) To control the release of waste products from the large intestine
3. c) To control the release of stomach acid into the esophagus
4. d) To control the release of bile from the liver

Answer: c) To control the release of stomach acid into the esophagus.

Q18 What is the function of the ileocecal valve?

1. a) To control the release of food from the stomach to the small intestine
2. b) To control the release of waste products from the large intestine
3. c) To control the release of bile from the liver
4. d) To control the release of pancreatic enzymes into the small intestine

Answer: b) To control the release of waste products from the large intestine.

Q19 What is the function of the villi in the small intestine?

1. a) To increase the surface area for nutrient absorption
2. b) To secrete digestive enzymes
3. c) To store waste products
4. d) To regulate the movement of food through the digestive tract

Answer: a) To increase the surface area for nutrient absorption.

Q20 Which of the following is not a function of saliva in the digestive system?

1. a) To moisten food for easier swallowing
2. b) To break down carbohydrates
3. c) To kill harmful bacteria
4. d) To neutralize stomach acid

Answer: d) To neutralize stomach acid.

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In conclusion, the digestive system is a complex and vital system in the human body that is responsible for breaking down food and absorbing nutrients. These MCQ on Digestive system have covered various aspects of the digestive system, from the anatomy and physiology to the functions of different organs and enzymes. By testing your knowledge with these questions, you can enhance your understanding of the digestive system and the important role it plays in maintaining overall health. It is important to have a good understanding of this system, as any disruptions or problems can lead to serious health issues. By continuing to learn and study the digestive system, we can ensure that we are taking the necessary steps to keep our bodies healthy and functioning properly.

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