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 411: When yeast respire anaerobically, it converts simple sugar to carbon (IV) oxide and Options:
  A) oxygen
  B) acid
  C) alcohol
  D) water
  Show Answer
  The correct answer is C .
• Question 412: A carbohydrate molecule in the blood in the right ventricles of the heart is pumped into the cell of the toe of a man. Which of these structure is it unlikely to pass through en-route Options:
  A) pulmonary artery
  B) lungs
  C) Heart
  D) liver
  E) aorta
  Show Answer
  The correct answer is D .
• Question 413: If the bark and phloem tissue of a woody shoot are peeled off by ringing, the whole plant will die eventually die because? Options:
  A) water does not reach the leaves
  B) water and salts remained below the ring portion
  C) there is a withdrawal of water from the root by soil
  D) manufactured food does not reach the roots
  E) the roots store too much water
  Show Answer
  The correct answer is D .
• Question 414: The part of the brain that controls heart beat and breathing is the Options:
  A) olfactory lobe
  B) cerebellum
  C) cerebral hemisphere
  D) medulla oblongata
  Show Answer
  The correct answer is D .
• Question 415: The type of asexual reproduction that is common to both Paramecium and protists is Options:
  A) budding
  B) sporulation
  C) fragmentation
  D) fission
  Show Answer
  The correct answer is D .
• Question 416:

  

  The lime water in container B turned milky because

  Options:
  A) carbon dioxide was produced by plant
  B) during respiration carbon dioxide entered C
  C) oxygen reacts with lime water to produce milkiness
  D) soda lime did not remove carbon dioxide from air
  E) the delivery tubes were not well connected
  Show Answer
  The correct answer is A .
• Question 417: In ferns, the sporophyte Options:
  A) develops from a haploid zygote
  B) reproductive sexually to produce spores
  C) is haploid and dependant on gametophyte
  D) is diploid and independent of the gametophyte
  Show Answer
  The correct answer is D .
• Question 418:

  The ability of the eyes to focus on both near and distance objects is termed

  Options:
  A) image formation
  B) refraction
  C) hypermetropia
  D) accommodation
  Show Answer
  The correct answer is D .
• Question 419: The micro-organisms that causes Typhoid disease is Options:
  A) trypanosome gambiense
  B) Salmonella typhi
  C) entamocbahistolytica
  D) plasmodium sp
  Show Answer
  The correct answer is B .
• Question 420:

  

  Use the diagram above to answer this question.The main function of the feathers covering the part labelled is to

  Options:
  A) prevent ectoparasites from attacking the animal
  B) generate heat to keep the animal warm
  C) provide some power for flight
  D) serve as insulator to maintain body heat
  Show Answer
  The correct answer is D .