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Human Reproduction

  1. What is sexual reproduction?
    • Sexual reproduction involves the fusion of specialised sex cells.
    • Produces offspring (progeny) that are unique individuals.
    • Half their genes come from one parent.
  2. What is fertilisation?
    • Fertilisation: the fusion of sperm and egg cell.
    • Fertilisation results in the formation of a diploid zygote from which new individual develops.
  3. What are gametes?
    • The sex cells
    • Female: eggs
    • Male: sperm
  4. What are the 3 levels of organisation in both male and female reproductive structures?
    • 1. Production of sex cells.
    • 2. Transport tubes.
    • 3. Glands to secrete hormones.
  5. What is the function of the testes?
    Produces sperm (by meiosis) and testosterone.
  6. What is the function of Epididymis?
    Matures and stores sperm
  7. What is the function of the sperm duct?
    (Vas deferens) carries sperm from epididymis to the urethra.
  8. What is another term for the sperm duct?
    Vas deferens
  9. What is the function of seminal vesicles, Cowper’s gland and prostate gland?
    • Produces seminal fluid which feeds the sperm and allows them to swim.
    • Sperm and seminal fluid are collectively called semen.
  10. What produces seminal fluid?
    • Seminal vesicles
    • Cowper’s gland
    • Prostrate gland
  11. What is semen?
    Sperm and seminal fluid.
  12. What is the function of the urethra in males?
    • Allows the passage of either urine or sperm.
    • About 50-300 million sperm cells are released at one time.
  13. What is the function of the penis?
    • Places sperm inside the body of the female.
    • Erection occurs when blood rushes to the penis.
  14. What is the function of the scrotum ?
    • Keeps the testes at a lower temperature (35)
    • This is optimum temperature for meiosis to occur.
  15. What is the head of the sperm called and what does it contain?
    Acrosome contains digestive enzymes.
  16. What is there to note about the nucleus of a sperm?
    Contains 23 chromosome.
  17. What is the middle part of the sperm called and what does it contain?
    Collar contains mitochondria fir energy, movement.
  18. What is the tail of the sperm called?
    Flagellum - allows sperm to swim
Author
jacquelineglynn
ID
361888
Card Set
Human Reproduction
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