Human reproduction worksheet Ordinary level biology 1. What is a gamete?________________________________________________________ 2. Name the male gamete and the female gamete? _________________________________________________________________ 3. State the name of the pouch covering the testes______________________ 4. Why is it important that the temperature of the scrotum remains at 35 degrees Celsius_________________________________________________________________ 5. Label the diagram of the male reproductive system shown.
6. In males where is testosterone produced________________________________________________________________ 7. State the function of the epididymus______________________________________________________________ 8. What is a vasectomy_______________________________________________________________
9. Name the tube through which sperm are released through the penis _________________ 10.Explain the difference between seminal fluid and semen__________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 11.The release of sperm from the penis is called____________________________________ 12.Why do sperm producing cells divide by meiosis_________________________________________________________________ _______________________________________________________________________ 13.What is puberty__________________________________________________________ 14.In males state the function of FSH___________________________________________ 15.In males state the function of LH____________________________________________ 16.Testosterone causes secondary male characteristics. List 3 such characteristics____________________________________________________________ _______________________________________________________________________ 17.In relation to male infertility state a cause______________________________________ A prevention _____________________________________________________________ A treatment______________________________________________________________
18.Label the diagram of the female reproductive system
19.In females where does meiosis occur___________________________________________ 20.What is a graafian follicle___________________________________________________ 21.What hormone does the graafian follicle produce________________________________ 22.After ovulation what is the follicle known as ___________________________________ 23.What hormone is secreted by the corpus luteum ________________________________ 24.State the function of the fallopian tube________________________________________ 25.The lining of the womb is called the __________________________________________ 26.List two functions of the vagina______________________________________________ 27.What is the menstrual cycle___________________________________________________________________ 28.Explain the term menopause_________________________________________________ 29.On which days of a typical cycle does menstruation (having a period) occur___________________________________________________________________
30.Label the stages of the menstrual cycle shown in
31.Name a hormone which prevents eggs from developing in females_________________________________________________________________ 32.Which hormones in female are associated which secondary sexual characteristics____________________________________________________________ _______________________________________________________________________ 33.State two secondary sexual characteristics in sy 34.females_________________________________________________________________ 35.State a cause prevention and treatment of infertility in females_________________________________________________________________ ________________________________________________________________________ 36.Explain the term copulation_______________________________________________________________ 37.What is insemination_____________________________________________________________ 38.What is fertilisation ________________________________________________________________________ ________________________________________________________________________ 39.Where does fertilisation normally occur___________________________________________________________________ 40.List two methods of birth control______________________________________________ 41.What is implantation_______________________________________________________
42.When a sperm and egg join a____________________ is formed which is called a ______________________________ after approximately one week. 43.An amnion and amniotic fluid surround the foetus. State the function of these structures________________________________________________________________ ________________________________________________________________________ 44.What is IVF? ________________________________________________________________________ __________________________________________________________________ 45.What is the chorion_________________________________________________________________ 46.Which organ is made both from tissue of the embryo and the mother? _________________________________________________________________ 47.List two functions of the placenta_________________________________________________________________ ________________________________________________________________________ 48.Why is it important that the mothers and babies blood supply do not mix? ____________________________________________________________________ 49.What connects the embryo to the placenta? ______________________________________ 50.Which hormones are secreted during pregnancy_______________________________________________________________ 51.What happens to the walls of the uterus when the levels of progesterone are low? ____________________________________________________________________ 52.Where is oxytocin made ____________________________and what is its function? ________________________________________________________________ 53.What happens during stage 1 of birth____________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 54.At which stage of birth is the placenta expelled from the mother? ________________________________________________________________________ _________________________________________________________________ 55.What is lactation_________________________________________________________ 56.State two advantages of breastfeeding____________________________________________________________ 57.Name the hormone which stimulated milk production in the mammary glands________________________________________________________
