Biology 2017 Past Questions | WAEC

Study the following Biology past questions and answers for JAMBWAEC   and NECO. Get prepared with official past questions and answers for upcoming examinations.

11. Which of the following actions does not occur during exhalation in man?

  • A. Thoracic cavity decreases in volume
  • B. Diaphragm flattens
  • C. Ribs move down and in
  • D. Air pressure increases in the thoracic cavity

12. biology past question

The diagram above is an illustration of the urinary tubule in a mammal. Which of the following substances is found in the part labelled II only?

  • A. Lipid
  • B. Glucose
  • C. Urea
  • D. Uric acid

13. biology past question

The diagram above is an illustration of the urinary tubule in a mammal. The part which contains lowest concentration of urea is labelled

  • A. I
  • B. II
  • C. III
  • D. IV

14.    biology past question

The diagram above is an illustration of the urinary tubule in a mammal. Which of the following substances is greater in concentration in the part labelled IV when compared to that part labelled I?

  • A. Lipid
  • B. Glucose
  • C. Urea
  • D. Uric acid

15. Deamination of amino acids in the liver produces 

  • A. blood sugar
  • B. glycogen
  • C. bile
  • D. urea

16. Which of the following glands also serves as an exocrine gland?

  • A. Ovary
  • B. Pancreas
  • C. Adrenal
  • D. Thyroid

17.  Which of the following sequences is the correct route of the transmission of impulses along a reflex arc?

  • A. \(Receptor\to sensory neuron \to synapse \to intermediate neuron \to synapse \to motor neuron \to effector\)
  • B. \(Receptor \to motor neuron \to synapse \to intermediate neuron \to synapse \to sensory neuron \to effector\)
  • C. \(Effector \to intermediate neuron \to synapse \to motor neuron \to synapse \to sensory neuron \to receptor\)
  • D. \(Effector \to motor neuron \to synapse \to sensory neuron \to synapse \to intermediate neuron \to receptor\)

18. When viewing an object that is close to the human eye, the

  • A. eye lens becomes thin
  • B. ciliary muscles relax
  • C. suspensory lens become taut
  • D. eye lens becomes fat

19.biology past question

The diagram above is an illustration of the human sperm. The part labelled I is the

  • A. acrosome
  • B. nucleus
  • C. mitochondrion
  • D. tail

20.   

         biology past question

In the diagram of the human sperm above, the function of the part labelled II is to 

  • A. fuse the ovum during fertilization
  • B. generate the energy for the sperm to swim to the fallopian tube
  • C. help the sperm to swim forward
  • D. dissolve the membrane of the egg during fertilization
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