FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 111:

• JAMB 1980

The following are connected with the movement of a reflex action (1) Central nervous (2) Muscles (3) Skin (4) Sensory nerve (5) Motor nerve. Which of the following sequences indicates a correct path?

A. 1-2-3-4-5
B. 2-1-4-5-3
C. 3-4-1-2-5
D. 4-1-5-2-3
E. 3-4-1-5-2

Question 112:

• JAMB 1980

Biconcave lenses are used in the correction of an eye defect called?

A. Myopia
B. Colour blindnes
C. Old age
D. Hypermetropia
E. Weakening of ciliary muscles

Question 113:

• JAMB 1980

The center which controls respiratory activities the mammalian brain is the

A. Cerebrum
B. Olfactory lobe
C. Pituitary organ
D. Cerebellum
E. Medulla

Question 114:

• JAMB 1980

The tips of some rice seedlings were cut off while some were left intact. Both were covered with a container which had not only one small hole to allow light through. After twenty-four hours it was observed that

A. The cut tips was bent away from the light
B. The cut tips bent towards source of light
C. The intact tips bent away from the light
D. The intact tips bent towards the light
E. Both tips bent away from light

Question 115:

• JAMB 1980

Oxygen from the atmosphere reaches the mammalian blood stream through one of the path indicated below. Indicate the correct path, a = mouth, b = trachea, c = bronchiole, d = nostril, e = bronchus, f = alveoli

A. A → b → e → f → d
B. B → d → f → e → c
C. D → b → e → c → f
D. B → a → f → e → c
E. F → e → c → d → c