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Human Reproduction
IGCSE Human Reproduction 15.5 - 15.9
| Question | Answer | Question | Answer |
|---|---|---|---|
| What is the function of the amniotic sac and fluid? | To protect the fetus during pregnancy | How is the yellow body formed? | formed by the follicles left behind after the egg cell burst through |
| State the ways in which HIV can be transmitted from one to another | Sexual intercourse, Sharing needles, Possibly through birth, Breast milk | What effects would alcohol have on a fetus? | birth defects and mental retardation |
| What does the female reproductive system consist of? | Ovaries, oviducts, uterus, cervix and vagina | What effects would heroin have on a fetus? | heroin crosses the palcenta and the baby could be born addicted to heroin. |
| What is the function of oestrogen? | stimulate development of sex organs & secondary sexual characteristics | What effects would smoking have on a fetus? | nicotine and carbon monoxide cross the placenta and can result in premature or underweight babies. |
| What happens in a vasectomy? | the man's sperm tubes are cut and tied | What is passive immunity? | the child has the mother's antibodies through breast feeding which it cannot produce by themselves yet |
| What is the difference between HIV and AIDS? | HIV is the virus which attacks the body's immune system and AIDS is the state where the count of T-cells in the body is as low as a certain point | Why is formula milk not the best idea? | Costs money, babies could get infections from non-sterile milk or bottles. |
| Outline the process of Artificial Insemination (AI) | semen from the man is collected and placed via a fine plastic tube into the woman's uterus. | What is the afterbirth? | the placenta which has come out of the uterus wall and pushed out of the vagina |
| What is the pituarity gland? | Found at the base of the brain, it makes hormones that stimulate the testes and ovaries. | All pregnant women need to ensure that they have adequate quanties of... | calcium, iron, carbohydrate and protein |
| How is the yellow body formed? | The follicle left behind from bursting to release the egg makes this | ||
| What effects would smoking have on a fetus? | nicotine and carbon monoxide cross the placenta and can result in premature or underweight babies. | ||
| What is ovulation? | The release of an egg from the ovaries | ||
| Why can fetility drugs result in a pregnancy of twins or triplets etc? | It can work too well and release too many eggs |
Created by:
mkwokseparatesbio
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