FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 226:

• JAMB 1984

Blood clotting is initiated by

A. Leucocytes
B. Platelets
C. Haemolymph
D. Haemoglobin
E. Erythrocytes

Question 227:

• JAMB 1984

Pepsin is a digestive enzymes which breaks

A. Cellulose into glucose molecules
B. Carbohydrates into simple sugars
C. Protein into peptones
D. Fats into glycerol and fatty acid
E. Sucrose into glucose and fructose

Question 228:

• JAMB 1984

Anaerobic respiration in yeast produces

A. Carbondioxide and ethanol
B. Carbondioxide and water
C. Carbondioxide and oxygen
D. Carbondioxide and glucose
E. Ethanol and water

Question 229:

• JAMB 1984

Underground stems which grow horizontally through the soil are

A. Bulbs
B. Rhizomes
C. Runners
D. Corms
E. Stolons

Question 230:

• JAMB 1984

In the Burret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive results?

A. Mercurous nitrates
B. Copper sulphate
C. Mercuric nitrate
D. Sodium carbonate
E. Ammonium hydroxide