FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 626:

• JAMB 1999

The richest source of vitamin A are

A. Palm oil and groundnut oil
B. Palm oil and carrot
C. Rice and groundnut oil
D. Oranges and carrot

Question 627:

• JAMB 1999

The force that holds water together in the form of a stream within the xylem tube is the

A. Cohesion of water molecules to one another by hydrogen bonds
B. Force of gravity attacking the water molecules through the hydrogen bonds
C. Attraction between the water and xylem osmotic force
D. Normal flow of water from the ground with help of gravitational force

Question 628:

• JAMB 1999

Yellowing of leaves is a symptom associated with deficiency of

A. Iron, calcium and magnesium
B. Nitrogen, sulphur and potassium
C. Sulphur, phosphorus and iron
D. Magnesium, nitrogen and iron

Question 629:

• JAMB 1999

The lymphatic system of mammals rejoins the blood circulatory system at the

A. Hepatic vein
B. Subclavian vein
C. Renal vein
D. Common iliac vein

Question 630:

• JAMB 1999

In dissection, the rib cage of mammal has to be opened in order to expose the

A. Diaphragm
B. Liver
C. Heart
D. Sternum