FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 76:

• JAMB 1979

A gland in the human body secretes two hormones, one of which causes a disease called diabetes when there is a deficiency. Which of these organ produce the hormone?

A. Spleen
B. Parathyroid
C. Adrenal body
D. Thyroid
E. Pancreas

Question 77:

• JAMB 1979

Which one of the following is not an excretory product?

A. Urine
B. Sweat
C. Faeces
D. Salts
E. Carbon-dioxide

Question 78:

• JAMB 1979

Bacteria inhabiting legume root nodules and which add atmospheric nitrogen to the soil are referred to as

A. Denitrifying bacteria
B. Nitrifying bacteria
C. Nitrogen fixing bacteria
D. Nitrogen freeing bacteria
E. Nitrogen putrefying bacteria

Question 79:

• JAMB 1979

The digestive enzyme that coagulates proteins in milk is

A. Ptyalin
B. Pepsin
C. Renin
D. Trypsin
E. Amylase

Question 80:

• JAMB 1979

The hepatic portal vein is characterized by

A. Beginning and ending with capillaries
B. Connecting the liver and the kidney
C. Carrying deoxygenated blood
D. Ending with large capillaries
E. Having no capillaries