FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 681:

• JAMB 2001

When specimen X is mixed with few drops of iodine solution, the appearance of a blue-black colour confirms that X is

A. Galactose
B. Starch
C. Sucrose
D. Glucose

Question 682:

• JAMB 2001

The structure above represents a

A. Caudal vertebra
B. Lumbar vertebra
C. Thoracic vertebra
D. Cervical vertebra

Question 683:

• JAMB 2001

Blood vessel usually pass through the structure labelled

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

Question 684:

• JAMB 2001

Salts and water are absorbed in the roots and transported to leaves by

A. Diffusion through the xylem tissues
B. Osmosis through the phloem tissues
C. Diffusion through the phloem tissues
D. Osmosis through the xylem tissues

Question 685:

• JAMB 2001

The number of plants species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomea spp (5), sida spp (7) and Imperata spp (23). What is the percentage of occurrence of Imperata spp?

A. 35%
B. 16%
C. 46%
D. 23%