Biology

Question 1

1Removing the tip of a shoot causes side branches to grow because

Hard

A. gibberellin is destroyed B. more auxin reaches the buds C. auxin inhibition of lateral buds is removed D. roots grow faster

Question 2

2Accommodation for near vision involves

Hard

A. ciliary muscles relaxing B. the retina moving C. ciliary muscles contracting and the lens becoming thicker D. the pupil widening only

Question 3

3Plant growth towards light is

Easy

A. phototropism B. hydrotropism C. geotropism D. thigmotropism

Question 4

4The hormone that controls the "fight or flight" response is

Easy

A. adrenaline B. oestrogen C. thyroxine D. insulin

Question 5

5In humans, sperm are produced in the

Easy

A. prostate gland B. urethra C. testes D. bladder

Question 6

6The growth of a plant shoot towards light is called

Easy

A. geotropism B. phototropism C. hydrotropism D. thigmotropism

Question 7

7The part of the brain that controls balance and coordination of movement is the

Easy

A. hypothalamus B. cerebellum C. medulla oblongata D. cerebrum

Question 8

8Auxin causes a shoot to bend towards light because it

Hard

A. inhibits all growth B. accumulates on the shaded side and stimulates growth there C. moves to the roots D. is destroyed by light

Question 9

9The hormone that triggers ovulation is

Hard

A. adrenaline B. thyroxine C. luteinising hormone (LH) D. insulin

Question 10

10The part of the brain that controls balance is the

Easy

A. medulla B. hypothalamus C. cerebellum D. cerebrum