Jamb Biology 1999 Past Questions and Answers

Question 11:

• JAMB 1999

In plant cells, the chloroplast are located

A. Inside the cell wall
B. Outside the protoplasm
C. Within the vacuole
D. Within the cytoplasm

Question 12:

• JAMB 1999

In the woody stems, gaseous exchange takes place through the

A. Micropyles
B. Stomata
C. Lenticels
D. Vessels

Question 13:

• JAMB 1999

Substance manufactured by the leaves are transported to other parts of the plant through the

A. Phloem
B. Companion cells
C. Sieve tubes
D. Cambium

Question 14:

• JAMB 1999

After a meal of yam has been digested, the highest concentration of glucose is to be found in the

A. Hepatic artery
B. Pulmonary vein
C. Hepatic portal vein
D. Posterior vena cava

Question 15:

• JAMB 1999

The dark reaction of photosynthesis involves

A. Fixation of carbon (IV) oxide to give six-carbon sugar
B. Fixation of carbon (IV) oxide with the help of oxygen
C. Use of carbon (IV) oxide to produce glucose using ATP
D. Fixation of carbon (IV) oxide on chlorophyll using hydrogen