Biology 2003 Jamb Past Questions and Answers

Question 16 :

• JAMB 2003

The dark reaction of photosynthesis involves the

A. Reduction of carbon(IV)oxide to organic
B. Release of oxygen and the splitting of water
C. Photolysis of water and the production of starch
D. Splitting of water into hydrogen

Question 17 :

• JAMB 2003

The experiment is used to demonstrate that

A. Plants lose water through guttation
B. Transpiration occurs through the leaves
C. Water is necessary for photosynthesis
D. Leaves are important to photosynthesis

Question 18 :

• JAMB 2003

In the experiment, the layer of oil serves to prevent water loss

A. Transpiration
B. Evaporation
C. Osmosis
D. Guttation

Question 19 :

• JAMB 2003

Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is

A. IV
B. III
C. I
D. II

Question 20 :

• JAMB 2003

The part of the mammalian digestive system where absorption of nutrient takes place is the

A. Ileum
B. Colon
C. Oesophagus
D. Duodenum