FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 596:

• JAMB 1998

In a water culture experiment, a plant showed poor growth and yellowing of the leaves. These may be due to deficiency in

A. Copper
B. Iron
C. Magnesium
D. Calcium

Question 597:

• JAMB 1998

In million's test, when the reagent is added to a protein food item, a white precipitate is produced which turns

A. Blue on heating
B. Yellow on heating
C. Green on heating
D. Red on heating

Question 598:

• JAMB 1998

Regulation of blood sugar level takes place in the

A. Pancreas
B. Iluem
C. Liver
D. Kidney

Question 599:

• JAMB 1998

Unicellular organisms transport essential nutrients directly to all parts of their bodies by the process of diffusion because, they have

A. A large volume of surface area ratio
B. A large surface area to volume ratio
C. Their bodies immersed in the nutrients
D. Their outer membrane made of cellulose

Question 600:

• JAMB 1998

In adult mammalian blood, the cells which lack nuclei are the

A. Erythrocytes
B. Lymphocytes
C. Leucocytes
D. Phagocytes