Waec Biology 2005 Past Questions and Answers

Question 16:

• WAEC 2005

Which of the following statements defines plasmolysis?

A. Shrinking of a plant cell in a solution
B. Shrinking away of cytoplasm from an animal cell membrane
C. Shrinking away of the cytoplasm from the plant cell wall
D. Shrinking of the vacuole and leaving the cytoplasm attached to the cell wall

Question 17:

• WAEC 2005

Raw materials required by green plants to manufacture their food are

A. Mainly fluids
B. Inorganic substances
C. Living materials
D. Mainly gases

Question 18:

• WAEC 2005

The role of ATP include all the following activities excerpt

A. Provision of energy to do work in living organisms
B. Transmission of nerve impulse
C. Keeping the body warm in homoithermic animals
D. Producing water during aerobic respiration

Question 19:

• WAEC 2005

The basis of growth involves the following processes except

A. Cell reduction
B. Cell division
C. Cell differentiation
D. Cell enlargement

Question 20:

• WAEC 2005

Which of the following statements is true about movement of the forearm? In

A. Bending the arm, the biceps relax and the triceps contract
B. Bending the arm, the biceps contract and the triceps relax
C. Straightening the arm the biceps contract and the triceps relax
D. Straightening the arm, both biceps and triceps contract