Waec Biology Past Questions and Answers

Question 76:

• WAEC 1990

Most of the energy in the cell is produced in the

A. Mitochondrion
B. Lysosome
C. Plastid
D. Golgi apparatus
E. Cytoplasm

Question 77:

• WAEC 1990

The structure in the cell that controls the movement of substances in and out of the cell is the

A. Cytoplasmic membrane
B. Nuclear membrane
C. Cytoplasm
D. Protoplasm
E. Endoplasm

Question 78:

• WAEC 1990

Which of the following structures differentiates an animal cell from a plant cell?

A. Ribosomes
B. Cell membrane
C. Chloroplast
D. Mitochondrion
E. Lysosome

Question 79:

• WAEC 1990

At the end of mitosis the number of cells produced from a parent cell is

A. Four
B. Six
C. Eight
D. Three
E. Two

Question 80:

• WAEC 1990

Which of the following statements is not correct of respiration?

A. Gaseous exchange occurs by diffusion
B. Oxygen combines with haemoglobin at the respiratory surface
C. Carbondioxide produced in the tissues is removed by the process of osmosis
D. There are no special organs for respiration in plants
E. In higher animals, respiratory gases are transported in solution.