FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 6:

• JAMB 2019

Which of these type of skeleton is most appropriate for a cockroach?

A. Hydrostatic skeleton
B. Endoskeleton
C. Cartilaginous skeleton
D. Exoskeleton
E. Bony skeleton

Question 7:

• JAMB 2019

When protein are broken down they provide

A. Energy
B. Oxygen
C. Carbon dioxide
D. Carbonhydrate
E. Amino acid

Question 8:

• JAMB 2019

The function of lenticels is

A. To absorb water from the atmosphere
B. To remove excess water in plant
C. For gaseous exchange
D. To absorb light
E. To store food

Question 9:

• JAMB 2019

The following events take place during conjugation in spirogyra 1. The protoplasm of each of the conjugating cell separate from the cell wall to form a Gamete; the gamete of one filament passes through the conjugation tube to meet the gamete of the other filament 2. The zygote soon become surrounded by thick brown wall to become zygospore which burst after a short rest and germinate to produce a new filament 3. The nuclei of the gametes fuse to form a zygote 4. The protuberance meet and where they touch the cell-wall disappear so that a conjugation tube joining the two cell is formed 5. protuberance appear on the wall of the cell of two filament of spirogyra lying side by side opposite one another. Now what is the correct sequence in which the above sequence occur?

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

Question 10:

• JAMB 2019

In which of the following groups of organisms do all the members have asexual method of reproduction?

A. Mucor (or penicillium), a bird and a toad (or frog)
B. A geen filament algae, a flowering plant and a bird
C. Ameoba, mucor (or penicillium ) and a green filamentous algae
D. A toad (or frog) , ameoba and mucor ( penicillium)
E. A flowering plant, tape worm (or ascaris) and a green filamentous algae