FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 16:

• JAMB 2019

Rhizopus (or mucor) obtain its food from dead organic matter extracellularly. It is said to be

A. An autotroph
B. Saprophyte
C. A facultative parasite
D. A commensal
E. An obligate parasite

Question 17:

• JAMB 2019

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

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

Question 18:

• JAMB 2019

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

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

Question 19:

• JAMB 2019

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

Question 20:

• JAMB 2019

In a photo-tropic experiment, young seedlings in a box were subjected to light from one direction. The seedling continue to grow erect. Which of the following statement is correct

A. The light was not strong enough
B. The tip of the seedling may have been covered
C. Only the tip of the seedling received the light
D. The seedlings were rather too young
E. The box containing the seedling should have been placed on a laboratory bench