ICSE Class 6 Biology - Digestive System - Test 1 (Basic)
1. The main function of the digestive system is to:
A. Break food into simpler substances
B. Pump blood
C. Produce oxygen
2. Digestion of food begins in the:
A. Stomach
B. Mouth
C. Intestine
3. The main function of teeth is to:
A. Absorb nutrients
B. Circulate blood
C. Break food
4. Saliva is produced by:
A. Salivary glands
B. Liver
C. Lungs
5. Food travels from mouth to stomach through the:
A. Windpipe
B. Esophagus
C. Kidney
6. The stomach helps in:
A. Breathing
B. Blood circulation
C. Digestion of food
7. Most digestion and absorption occur in the:
A. Small intestine
B. Large intestine
C. Mouth
8. Large intestine mainly helps in absorption of:
A. Oxygen
B. Water
C. Protein
9. The waste food is stored temporarily in the:
A. Stomach
B. Liver
C. Rectum
10. Undigested food is removed from the body through the:
A. Anus
B. Mouth
C. Stomach
11. The liver produces:
A. Saliva
B. Bile
C. Blood cells
12. The pancreas helps in:
A. Breathing
B. Pumping blood
C. Digestion
13. Digestion involves:
A. Breaking down food
B. Making oxygen
C. Circulating blood
14. Chewing of food is also called:
A. Absorption
B. Mastication
C. Circulation
15. Nutrients from food enter the:
A. Bone
B. Air
C. Blood
16. Roughage in food helps in:
A. Digestion movement
B. Oxygen production
C. Bone formation
17. A balanced diet means:
A. Only fruits
B. All nutrients in proper amount
C. Only water
18. The end product of digestion includes:
A. Rocks
B. Oxygen
C. Glucose
19. Enzymes in digestion are:
A. Chemicals that break food
B. Bones
C. Blood cells
20. The digestive system helps in providing:
A. Oxygen only
B. Energy
C. Water only