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 2101:

  

  In the diagram, the structure labelled II is the

  Options:
  A) spermathecal pore
  B) cocoon
  C) clitellum
  D) chaetea
  Show Answer
  The correct answer is C .
• Question 2102: The center for controlling body temperature in the brains is the Options:
  A) cerebrum
  B) cerebellum
  C) medulla
  D) hypothalamus
  Show Answer
  The correct answer is D .
• Question 2103: interveinal chlorosis is normally associated with the deficiency of Options:
  A) magnesium
  B) potassium
  C) iron
  D) calcium
  Show Answer
  The correct answer is A .
• Question 2104: Most cells in higher animals retain their power of division EXCEPT Options:
  A) lymphocytes
  B) nerve cells
  C) malpighian cells
  D) germ cells
  Show Answer
  The correct answer is B .
• Question 2105: Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is Options:
  A) IV
  B) III
  C) I
  D) II
  Show Answer
  The correct answer is A .
• Question 2106: Which of these combinations is common to plant and animal cells? Options:
  A) Centriole, middle lamella, golgi bodies, mitrochondrion
  B) Cytoplasm, sap, vacuole, starch grains, leucoplasts
  C) Plasma membranes, chromosomes, mitochondria, lysosomes.
  D) Nucleus, nucleolus, cellulose cell wall, endoplasmic reticulum
  E) Cytoplasm, centriole, cellulose cell wall, nucleolus
  Show Answer
  The correct answer is C .
• Question 2107:

  In the enzyme (amlyase) reactions of starch → sugar

  Starch is referred to as the

  Options:
  A) substrate
  B) product
  C) enzyme
  D) enzyme-substrate complex
  E) reaction mixture
  Show Answer
  The correct answer is A .
• Question 2108:
  

  Use the diagram to answer this question. The part labelled II is the

  Options:
  A) nucleus
  B) eyespot
  C) basal granule
  D) contractile vacuole
  Show Answer
  The correct answer is D .
• Question 2109:

  When a cell is placed in solution and the size of the cell increases, the concentration of solution is said to be

  Options:
  A) isotonic
  B) dilute
  C) hypotonic
  D) hypertonic
  Show Answer
  The correct answer is C .
• Question 2110: Rhizopus (or mucor)obtain its food from dead organic matter extracellularly. It is said to be Options:
  A) a facultative parasite
  B) saprophyte
  C) an obligate parasite
  D) a commensal
  E) an autotroph
  Show Answer
  The correct answer is B .