Nutrition - Jamb Biology Past Questions and Answers

Question 61:

• JAMB 1996

Given the equation:
6CO2 + 6H2O → C6H12O6 + 6O2 {Under sunlight & Chlorophyll)
The oxygen given off during the above process is derived from

A. Sunlight
B. Chlorophyll
C. Carbon dioxide
D. Atmosphere
E. Water

Question 62:

• JAMB 1997

Trace elements are required by plants mainly for the

A. Formation of pigments and enzymes
B. Production of energy and hormones
C. Manufactured of carbohydrates
D. Manufacture of proteins

Question 63:

• JAMB 1997

The element that is essential for the coagulation of blood is

A. Potassium
B. Calcium
C. Phosphorus
D. Iron

Question 64:

• 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

Question 65:

• JAMB 1999

The modes of nutrition in Nitrobacter, Ascaris and Homo sapiens respectively are

A. Photosynthetic , parasitic and holozoic
B. Chemosynthetic, parasitic and holozoic
C. Photosynthetic, parasitic and heterophytic
D. Chemosynthetic, holophytic and holozoic