ICSE Class 6 Biology - Digestive System - Test 4 (Expert)
1. Final digestion of food mainly occurs in the:
A. Mouth
B. Small intestine
C. Stomach
2. Nutrients from digested food are absorbed into:
A. Bones
B. Air sacs
C. Bloodstream
3. The involuntary movement of food in the food pipe is:
A. Peristalsis
B. Respiration
C. Osmosis
4. Bile plays an important role in digestion of:
A. Starch
B. Fats
C. Oxygen
5. The stomach helps in digestion by producing:
A. Oxygen
B. Blood
C. Acid and enzymes
6. Villi increase the efficiency of:
A. Absorption
B. Breathing
C. Circulation
7. The esophagus is responsible for:
A. Digestion of fats
B. Transport of food
C. Absorption of nutrients
8. Saliva is produced by:
A. Liver
B. Stomach
C. Salivary glands
9. The first nutrient to be digested is:
A. Carbohydrates
B. Proteins
C. Fats
10. The stomach helps in:
A. Oxygen transport
B. Churning food
C. Blood clotting
11. The pancreas secretes:
A. Blood cells
B. Oxygen
C. Digestive enzymes
12. The large intestine mainly absorbs:
A. Water
B. Oxygen
C. Glucose
13. Egestion refers to:
A. Digestion of food
B. Removal of waste
C. Absorption of nutrients
14. The main purpose of digestion is to provide:
A. Oxygen
B. Water
C. Energy
15. Chemical digestion involves:
A. Enzymes breaking food
B. Bones moving
C. Blood pumping
16. Chewing of food is an example of:
A. Chemical digestion
B. Mechanical digestion
C. Absorption
17. Undigested food is:
A. Stored in blood
B. Converted to energy
C. Eliminated
18. The digestive system consists of:
A. Digestive organs
B. Only stomach
C. Only liver
19. Nutrients are important for:
A. Breathing only
B. Growth and energy
C. Making air
20. A healthy digestive system ensures:
A. No breathing
B. No blood flow
C. Proper digestion