Alberta Diploma Exams · Biology 30

Nervous, endocrine and reproductive systems

23 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 23 questions

  1. Which part of a neuron receives signals from other neurons?
  2. What is the main function of the myelin sheath on a myelinated axon?
  3. At resting potential, the sodium-potassium pump moves
  4. During depolarization of an axon membrane, which event occurs?
  5. Which event causes repolarization?
  6. What triggers the release of neurotransmitter from vesicles in the axon terminal?
  7. What does acetylcholinesterase do in a synapse?
  8. Which division of the autonomic nervous system prepares the body for fight or flight?
  9. In a spinal reflex arc, impulses travel in which order?
  10. How does the hypothalamus control the anterior pituitary?
  11. ADH released from the posterior pituitary acts on the kidney by
  12. Which statement about insulin is correct?
  13. In the negative feedback loop controlling thyroid hormone, a high level of thyroxine
  14. A patient has a high TSH level and a low thyroxine level. Where is the problem most likely located?
  15. Which cells of the testes produce testosterone?
  16. What is the role of FSH in the male reproductive system?
  17. Which hormone surge triggers ovulation?
  18. After ovulation, the corpus luteum mainly secretes
  19. Why does hCG matter in early pregnancy?
  20. Where does fertilization normally occur in humans?
  21. Which germ layer gives rise to the nervous system during embryonic development?
  22. An oral contraceptive contains estrogen and progesterone. How does it prevent pregnancy?
  23. What does the acrosome of a sperm cell contain?

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