Jamb Biology 2005 Past Questions and Answers

Question 21:

• JAMB 2005

A test tube containing yeast in glucose solution containing alkaline pyrogallol. The bubbles of carbon (IV) oxide produced indicates that the yeast cells are

A. Respiring in the absence of oxygen
B. Liberating oxygen on their own
C. Living and consuming oxygen
D. Being killed by the alcohol produced

Question 22:

• JAMB 2005

The urinary tubules of the kidney function through

A. Osmosis and diffusion
B. Active transport and osmosis
C. Ultrfiltration and selective reabsorption
D. Active transport and cytoplasmic streaming

Question 23:

• JAMB 2005

Excess water in plants is excreted as water vapour and droplets respectively through

A. Respiration and guttation
B. Transpiration and guttation
C. Photosynthesis and guttation
D. Guttation and condensation

Question 24:

• JAMB 2005

When bacteria swim from cold to warm regions this is known as

A. Negative chemotaxis
B. Positive thermotaxis
C. Positive phototaxis
D. Negative phototaxis

Question 25:

• JAMB 2005

Hydrostatic skeleton is the type of supporting system found in

A. Mammals
B. Reptiles
C. Oligochaetes
D. Arthropods