Class 7 Science MCQs | Digestive System Quiz with Answers

 

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 Class 7 Science MCQs | Digestive System Quiz with Answers 

Test-01

Multiple Choice Questions (MCQs)

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Science MCQ Test

Topic: Digestive System and Its Disorders
Grade: 7
Time: 30 Minutes
Total Questions: 30

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1. Which organ is responsible for breaking down food into smaller particles?

A) Heart

B) Lungs

C) Stomach

D) Kidney

2. Which enzyme in saliva helps in the digestion of starch?

A) Pepsin

B) Amylase

C) Trypsin

D) Lipase

3. What is the primary function of the small intestine?

A) Absorption of nutrients

B) Digestion of proteins

C) Storage of food

D) Filtering of blood

4. Which part of the digestive system is responsible for water absorption?

A) Large intestine

B) Small intestine

C) Stomach

D) Liver

5. What is the main function of bile juice?

A) Digest proteins

B) Break down starch

C) Emulsify fats

D) Absorb minerals

6. Which organ produces bile?

A) Stomach

B) Pancreas

C) Liver

D) Gallbladder

7. What is the tube called that connects the mouth to the stomach?

A) Trachea

B) Esophagus

C) Intestine

D) Larynx

8. Which digestive disorder is caused by excessive acid in the stomach?

A) Acidity

B) Constipation

C) Diarrhea

D) Jaundice

9. Which condition is caused by an inflamed appendix?

A) Gallstones

B) Appendicitis

C) Jaundice

D) Acidity

10. Which organ helps in both digestion and blood sugar regulation?

A) Liver

B) Pancreas

C) Stomach

D) Large intestine

11. What is the function of the epiglottis?

A) Prevents food from entering the windpipe

B) Helps in digesting proteins

C) Produces bile

D) Absorbs water

12. What is the main function of the stomach acid?

A) Absorb nutrients

B) Kill harmful bacteria

C) Store food

D) Absorb fats

13. What is peristalsis?

A) Muscle contractions that move food through the digestive system

B) The production of bile

C) Absorption of nutrients

D) Breaking down of proteins

14. Which organ filters toxins from the blood?

A) Liver

B) Stomach

C) Small intestine

D) Pancreas

15. What is the role of the pancreas in digestion?

A) Produces bile

B) Produces digestive enzymes

C) Stores food

D) Absorbs water

16. What is the main function of villi in the small intestine?

A) Absorption of nutrients

B) Production of bile

C) Filtering of blood

D) Digestion of proteins

17. Which part of the digestive system is mainly responsible for water absorption?

A) Large intestine

B) Stomach

C) Small intestine

D) Pancreas

18. What is the role of fiber in digestion?

A) Helps move food through the digestive tract

B) Produces digestive enzymes

C) Breaks down proteins

D) Absorbs nutrients

19. Which digestive organ produces bile?

A) Liver

B) Pancreas

C) Stomach

D) Small intestine

20. Which organ stores bile before releasing it into the small intestine?

A) Gallbladder

B) Liver

C) Pancreas

D) Large intestine

21. What is the primary function of saliva in digestion?

A) Helps in breaking down starch

B) Absorbs nutrients

C) Neutralizes stomach acid

D) Produces digestive enzymes

22. Which organ produces insulin?

A) Pancreas

B) Liver

C) Stomach

D) Small intestine

23. What is heartburn caused by?

A) Acid reflux into the esophagus

B) Excess bile production

C) Slow digestion

D) Lack of saliva

24. Which nutrient is primarily digested in the stomach?

A) Proteins

B) Carbohydrates

C) Fats

D) Vitamins

25. What is the main cause of peptic ulcers?

A) Bacterial infection (H. pylori)

B) Excess fiber intake

C) High water consumption

D) Excess stomach mucus

26. What is the function of bile?

A) Breaks down fats

B) Digests proteins

C) Absorbs minerals

D) Produces saliva

27. What is the main function of the esophagus?

A) Transports food to the stomach

B) Absorbs water

C) Produces enzymes

D) Stores food

28. What is the common symptom of lactose intolerance?

A) Diarrhea

B) High blood pressure

C) Increased appetite

D) Slow digestion

29. What is the function of mucus in the stomach?

A) Protects the stomach lining

B) Breaks down proteins

C) Produces bile

D) Absorbs nutrients

30. What is a common digestive disorder caused by insufficient fiber intake?

A) Constipation

B) Acid reflux

C) Peptic ulcers

D) Lactose intolerance

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