Biology Exam Past Questions and Answers | JAMB, WAEC and NECO

Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.

• Question 541: The feature that distinguish the toad or frog from the fish is the absence of Options:
  A) scales
  B) lungs
  C) paired appendages
  D) a tail
  E) skin glands
  Show Answer
  The correct answer is A .
• Question 542:

  In an experiment to determine the percentage of humus and water in a soil sample, the following results were obtained

  Weight of the evaporating basin alone = 80.5g

  Weight of basin and soil = 101.5g

  Weight after drying the soil in the oven = 99.0g

  Weight of basin and roasted soil = 95.5g

  The percentage of humus in the soil sample is

  Options:
  A) 16.7%
  B) 17.6%
  C) 26.7%
  D) 16.2%
  Show Answer
  The correct answer is A .
• Question 543:

  Red blood cells were found to have burst open after being placed in distill for an hour. This phenomenon is known as

  Options:
  A) plasmolysis
  B) diffusion
  C) haemolysis
  D) wilting
  Show Answer
  The correct answer is C .
• Question 544:

  The enzymes of the glycolytic pathway are located in the?

  Options:
  A) mitochondria
  B) gastric juice
  C) plasma
  D) cytoplasm
  Show Answer
  The correct answer is D .
• Question 545: During thunderstorms the energy of lightning discharge causes Options:
  A) oxygen and nitrogen to combine
  B) more carbon dioxide to be formed
  C) nitrites to be converted to nitrates
  D) nitrates to be converted to nitrogen
  E) death
  Show Answer
  The correct answer is A .
• Question 546:

  Which of the following substances pass through the root cell membrane by osmosis?

  Options:
  A) Ceil sap
  B) Carbon dioxide
  C) Oxygen
  D) Water
  Show Answer
  The correct answer is D .
• Question 547: In mammalian development, the function of the yolk is to Options:
  A) supply nutrients to the embryo
  B) act as the shock-absorber to the foetus
  C) supply air to the embryo
  D) facilitates the process of excretion in the foetus
  Show Answer
  The correct answer is A .
• Question 548: The movement of blood between the heart and all other parts of the body besides the lung is known as Options:
  A) systemic circulation
  B) closed circulatory system
  C) pulmonary circulation
  D) single circulation system
  Show Answer
  The correct answer is A .
• Question 549: Groundnut is not really a 'nut' in the biological sense because Options:
  A) it is harvested from inside the ground
  B) pericarp is not hard and tough
  C) the fruit is not as hard as coconut
  D) the fruit is not succulent
  E) it is an achene
  Show Answer
  The correct answer is B .
• Question 550: If a handful of soil is shaken with water and left to settle, the soil particles will settle from light to heavy particles as follows Options:
  A) humus, clay, silt, sand, stones
  B) humus, silt, clay, sand, stones
  C) humus, clay,silt, stones, sand
  D) humus, sand, silt, clay, stones
  E) clay, humus, silt, sand, stones
  Show Answer
  The correct answer is A .