Jamb Biology 1983 Past Questions and Answers

Question 1:

• JAMB 1983

Root hairs are developed from the

A. Root apex
B. Epidermis of root
C. Vascular bundles
D. Endodermis
E. Pericycle

Question 2:

• JAMB 1983

In a dicot leaf, guard cells differ from other epidermal cells because they

A. Have no definite shape
B. Lack nuclei
C. Are smaller
D. Contain chloroplast
E. Lack vacuole

Question 3:

• JAMB 1983

Which of the following structure is NOT found in the female agama lizard?

A. Pre-anal pads
B. Eardrum
C. Gular fold
D. Nasal scale
E. Nuchal crest

Question 4:

• JAMB 1983

Herbs differ from shrubs because they

A. Do not produce fruit
B. Are useful to herbalist
C. Do not become woody
D. Are only annual
E. Are only perennials

Question 5:

• JAMB 1983

If an organic compound has its hydrogen: oxygen ratio as 2:1, it is likely to be

A. A protein
B. A cabohydrate
C. A fat
D. A fatty acid and glycerol
E. An amino acid