O level south west regional mock gce 2022 biology 1
O level south west regional mock gce 2022 biology 1
SECTION 1
Questions 1-7
(Seven questions)
Directions: each of these questions or incomplete
statements is followed by four suggested answers.
Select the best answer in each case and mark the
answer sheet appropriately.
1) Plant roots absorb nitrates from the soil by:
a) Active transport
b) Osmosis
c) Diffusion
d) Phagocytosis
2) Which of the following are component
elements of proteins?
a) C, H, 0, S
b) C, H, O, N, S
c) C, H, O, N
d) C, H, 0
3) Choose the best temperature for enzyme
activity
a) High temperature above 40°c
b) Low temperature below 5°c
c) Optimum temperature of 37°c
d) Temperature of 40°c
4) What is the correct term used to describe a
plant cell that has absorbed water maximally
by osmosis?
a) Flaccid
b) Plasmolysed
c) Hard
d) Turgid
