ICSE Class 6 Biology - Digestive System - Test 3 (Advanced)
1. The process of breaking down fats into tiny droplets is called:
A. Digestion
B. Absorption
C. Emulsification
2. Food movement in the digestive tract happens due to:
A. Peristalsis
B. Diffusion
C. Photosynthesis
3. Villi in the small intestine help to:
A. Produce enzymes
B. Increase absorption area
C. Store food
4. Digestive juices mainly contain:
A. Blood cells
B. Oxygen
C. Enzymes
5. Saliva helps in digestion by:
A. Breaking starch
B. Producing blood
C. Carrying oxygen
6. The liver assists digestion by producing:
A. Saliva
B. Bile
C. Enzymes for breathing
7. The pancreas mainly produces:
A. Blood cells
B. Oxygen
C. Digestive enzymes
8. The purpose of hydrochloric acid in stomach is to:
A. Kill germs
B. Produce food
C. Store oxygen
9. The large intestine is mainly responsible for:
A. Protein digestion
B. Water absorption
C. Oxygen transport
10. Removal of undigested food is called:
A. Absorption
B. Digestion
C. Egestion
11. Enzymes in digestion act as:
A. Catalysts
B. Blood carriers
C. Oxygen producers
12. Carbohydrates are broken into:
A. Proteins
B. Glucose
C. Fats
13. Proteins are converted into:
A. Glucose
B. Fat droplets
C. Amino acids
14. Absorption means:
A. Nutrients entering blood
B. Food chewing
C. Food storage in mouth
15. Chewing food helps digestion by:
A. Increasing size
B. Making food smaller
C. Producing oxygen
16. The digestive tract is also called:
A. Blood system
B. Respiratory tube
C. Alimentary canal
17. The large intestine helps in formation of:
A. Feces
B. Oxygen
C. Glucose
18. A balanced diet contains:
A. Only proteins
B. All nutrients
C. Only water
19. The digestive system mainly helps in providing:
A. Oxygen
B. Water
C. Energy
20. Nutrients are important because they help in:
A. Growth and energy
B. Making air
C. Producing stones