ICSE Class 6 Biology - The Flower - Test 5 (Comprehensive)
1. The life cycle of a flowering plant starts and ends with:
A. Seed formation
B. Leaf growth
C. Stem elongation
2. A flower will produce seeds only after:
A. Germination
B. Fertilization
C. Respiration
3. Different flowers use different agents mainly for:
A. Water absorption
B. Photosynthesis
C. Pollination
4. Flowers that depend on insects are usually:
A. Bright and scented
B. Small and dull
C. Leafless plants
5. Wind-pollinated flowers usually produce:
A. Heavy pollen
B. Large number of pollen grains
C. No pollen
6. Seed dispersal mainly helps plants to:
A. Reduce leaf size
B. Increase flower size
C. Spread to new areas
7. In explosive seed dispersal, seeds are spread when:
A. Fruit bursts open
B. Leaves fall
C. Roots break
8. The main function of fruit is:
A. Absorb water
B. Protect seeds
C. Make oxygen
9. The outer covering of seed is called:
A. Petal
B. Ovary wall
C. Seed coat
10. The baby plant inside seed is called:
A. Embryo
B. Ovule
C. Stigma
11. The main role of flowers is to:
A. Store water
B. Reproduce plants
C. Absorb nutrients
12. The part of flower that receives pollen is:
A. Anther
B. Ovary
C. Stigma
13. Petals mainly help in:
A. Attraction of insects
B. Water transport
C. Seed formation
14. Sepals mainly protect:
A. Roots
B. Flower bud
C. Seeds
15. Pollen grains are produced in:
A. Ovary
B. Stigma
C. Anther
16. Fertilization means:
A. Fusion of gametes
B. Leaf growth
C. Root elongation
17. After fertilization, ovary becomes:
A. Leaf
B. Fruit
C. Stem
18. Seeds are important because they:
A. Absorb water
B. Produce flowers
C. Grow into new plants
19. Pollination is:
A. Transfer of pollen
B. Growth of stem
C. Seed germination
20. Flowers are essential for:
A. Photosynthesis
B. Reproduction
C. Digestion