Waec Biology 2018 Past Questions and Answers

Question 6:

• WAEC 2018

Which of the following organelles is found only in plant cells?

A. Mitochondria
B. Ribosomes
C. Lysosomes
D. Plastids

Question 7:

• WAEC 2018

Active transport differs from diffusion in that active transport

A. Is a very fast process
B. Allows the movement of substances against concentration gradient
C. Takes place in both light and dark reaction of photosynthesis
D. Occurs in both plant and animal tissues

Question 8:

• WAEC 2018

The diagrams above are illustrations of an experimental set-up to demonstrate a type of tropic response in plants. The type of response demonstrated is

A. Phototropism
B. Geotropism
C. Hydrotropism
D. Thigmotropism

Question 9:

• WAEC 2018

The conclusion drawn from the experiment in the diagram above is that

A. Shoots of plants are negatively thigmotropic
B. Shoots of plants are negatively geotropic
C. Shoots of plants are positively phototropic
D. Roots of plants are positively hydrotropic

Question 10:

• WAEC 2018

The odontoid process is found on the

A. Axis vetebra
B. Atlas vetebra
C. Thoracic vetebra
D. Sacral vetebra