Biology

Question 1

1Insect-pollinated flowers usually have

Easy

A. huge amounts of light pollen B. bright petals, scent and nectar C. small dull petals and no scent D. feathery stigmas outside the flower

Question 2

2Flowers pollinated by wind usually have

Easy

A. bright petals and nectar B. sticky pollen C. strong scent D. light, smooth pollen and feathery stigmas

Question 3

3Self-pollination is prevented in some flowers by

Hard

A. producing nectar B. having sepals C. stamens and stigmas maturing at different times D. having petals

Question 4

4Which part of the ovule becomes the seed coat (testa)?

Hard

A. integuments B. nucellus C. embryo sac D. micropyle

Question 5

5Double fertilisation in flowering plants produces

Hard

A. two seeds B. two zygotes C. a zygote and a triploid endosperm D. a fruit and a leaf

Question 6

6Seeds of the Tridax plant are dispersed mainly by

Easy

A. explosion B. animals eating fruit C. water D. wind

Question 7

7Germination requires water, oxygen and

Easy

A. fertiliser B. soil always C. light always D. a suitable temperature

Question 8

8Growing new cassava plants from stem cuttings is an example of

Easy

A. vegetative propagation B. pollination C. fertilisation D. germination by seed

Question 9

9The transfer of pollen from anther to stigma is

Easy

A. pollination B. fertilisation C. germination D. dispersal

Question 10

10After fertilisation, the ovary develops into the

Easy

A. flower B. leaf C. fruit D. seed