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 991: Water is required for seed germination to take place because it Options:
  A) activates the enzymes
  B) softens the testa
  C) liberates energy for growth
  D) permits radicle growth
  E) allow oxygen to diffuse into the seed
  Show Answer
  The correct answer is A .
• Question 992:

  What is the tissue responsible for transporting water and minerals from the roots to the rest of the plant?

  Options:
  A) Xylem
  B) Epidermis
  C) Parenchyma
  D) Phloem
  Show Answer
  The correct answer is A .
• Question 993: Which of these organisms partly digest its food extracellularly? Options:
  A) Housefly
  B) Cockroach
  C) Termite
  D) Mosquito
  Show Answer
  The correct answer is C .
• Question 994: When the solute concentration of the cell and its surrounding medium are the same, the solution is said to be Options:
  A) hypertonic
  B) hypotonic
  C) isotonic
  D) acidic
  Show Answer
  The correct answer is C .
• Question 995: An association between the root nodule of a leguminous plant and rhizobium sp, is known as Options:
  A) commmensalism
  B) mycorrhiza
  C) parastism
  D) symbiosis
  Show Answer
  The correct answer is D .
• Question 996: The genetic make-up of an organism is described as Options:
  A) Allele
  B) Chromosome
  C) Phenotype
  D) Genotype
  Show Answer
  The correct answer is D .
• Question 997: The homozygous condition Hb^sHb^sresults in sickle cell anaemia whereas Hb^AHb^s has the sickling trait. What is the probability that a couple with the sickling trait will give birth to one normal child? Options:
  A) 1/2
  B) 1/4
  C) 1/8
  D) none
  Show Answer
  The correct answer is B .
• Question 998: The equation that can be used to summarize the process of anaerobic breakdown of sugar is Options:
  A) C₂H₁₂O₆ 2C₂H₅OH + 2CO₂
  B) 6Co₂ + 6H₂O C₆H₁₂O₆ + 6O₂
  C) C₆H₁₂O₆ + 6O₂ 6CO₂ + 6H₂O + enegy
  D) C₆H₁₂O₆ 2C₂H₅OH + 2CO₂ + energy
  Show Answer
  The correct answer is D .
• Question 999: Which of the following ions is involved in the conduction of the nerve impulse? Options:
  A) Ca²⁺
  B) K⁺
  C) H⁺
  D) Mg²⁺
  Show Answer
  The correct answer is B .
• Question 1000: In which of the following tissue do the cells have the ability to divide? Options:
  A) Meristem
  B) Sclerenchyma
  C) Phloem
  D) Collenchyma
  E) Pith
  Show Answer
  The correct answer is A .