FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 491:

• JAMB 1994

The failure of transport and respiratory systems in plants as well as the presence of reddish colour in stems and leaves result from the deficiency of

A. Magnesium
B. Nitrogen
C. Potassium
D. Phosphorus

Question 492:

• JAMB 1994

The dental formula 13/3 c1/1 pm4/4 m2/3 is that of a

A. Goat
B. Rabbit
C. Man
D. Dog

Question 493:

• JAMB 1994

The activity of ptyalin is likely to decrease with an increase in concentration of

A. Oxygen
B. Starch
C. Protein
D. Acid

Question 494:

• JAMB 1994

The phloem parenchyma is sometimes used for

A. Food storage
B. Supporting the stem
C. Production of the sieve tube
D. Transporting water

Question 495:

• JAMB 1994

The process by which a red blood cell placed in distilled water absorbs water until it burst and releases its contents into the surrounding is known as

A. Osmosis
B. Plasmolysis
C. Turgidity
D. Haemolysis