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Biology Past Questions and Answers

Topic: Excretion

Jamb Biology Questions - Excretion

Question 16:
Which of the following pairs are the products of sucrose hydrolysis?
  • A Glucose + glucose
  • B Fructose + fructose
  • C Glucose + fructose
  • D Galactose + glucose
  • E Fructose + galactose
View Answer & Explanation
Question 17:
The kidneys of all vertebrates act as osmoregulators. This means that they
  • A Keep the composition of the plasma constant
  • B Regulate osmotic processes
  • C Control the volume of blood entering the kidneys
  • D Decrease the osmotic pressure of the blood
  • E Increase the osmotic pressure of blood
View Answer & Explanation
Question 18:
Urea is produced in the
  • A Liver
  • B Bladder
  • C Spleen
  • D Kidneys
  • E Gall bladder
View Answer & Explanation
Question 19:
Which of the following is NOT a waste product of plants?
  • A Tannins
  • B Oxygen
  • C Carbondioxide
  • D Sap
  • E Alkaloids
View Answer & Explanation
Question 20:
A young plant showing yellow leaves is likely NOT to be deficient in?
  • A Calcium
  • B Magnesium
  • C Potassium
  • D Boron
View Answer & Explanation