FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 46:

• JAMB 1978

The feature that distinguish the toad or frog from the fish is the absence of

A. Scales
B. Lungs
C. Paired appendages
D. A tail
E. Skin glands

Question 47:

• JAMB 1978

Which of these is not a function of the mammalian skin/

A. Protection against bacteria infection
B. Excretion of waste and water
C. Production of vitamin d when exposed to sun light
D. Production of pigments to reduce temperature
E. Regulation of body temperature

Question 48:

• JAMB 1978

which of these elements in plants is required in small quantities only

A. Boron
B. Nitrogen
C. Phosphorus
D. Magnesium
E. Potassium

Question 49:

• JAMB 1978

a potometer was used to compare the rate of loss of the same volume of water from a plant under different environmental conditions as under a fan, at the sea shore, under the sun, in the airy laboratory and in cupboard. What time was likely to have been obtained in a cupboard?

A. 15 secs
B. 30secs
C. 25secs
D. 20secs
E. 28secs

Question 50:

• JAMB 1978

A carbohydrate molecule in the blood in the right ventricles of the heart is pumped into the cell of the toe of a man. Which of these structure is it unlikely to pass through en-route

A. Pulmonary artery
B. Lungs
C. Heart
D. Liver
E. Aorta