4 hormones: Produced by pituitary gland, Stimulates the release of egg at Day 14
LH
1 of 13
4 hormones: Produced in ovaries by remains of follicle, Maintains lining of uterus in the second half of the cycle, Inhibits release of LH and FSH
Progesterone
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Ways to ... : High amount of oestrogen prevent egg release. Progesterone prevents sperm meeting the egg. The pill which is 99% effective, contains progesterone and oestrogen. Progesterone only pill. Contraceptive patch, implant, injection and IUD
Control Fertility
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... are non-hormonal ways of contraception which are designed to stop the sperm getting to the egg. Method include: Condoms- protect against STD's, Diaphragm- Uses spermicide to kill sperm, Spermicide- can be used alone but not as effective
Barriers
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Avoiding ... : Sterilisation- Cutting or tying fallopian tubes, Natural Methods- Finding out when the cycle occurs, Abstinence- don't have sex at all
Pregnancy
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... can increase fertility. +ive: It helps woman become pregnant when they couldn't before. -ive: Doesn't always work, and too many eggs can be stimulated
Hormones
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... involves getting a womans egg and fertilising it with a mans sperm in a lab. +ive: Can give an infertile couple, a child. -ive: Multiple births can happen, success rate is low, the procedure can be emotionally and physically stressful,
IVF
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... is a hormone released by adrenal glands which are just above the kidneys. Released in stressful or scary situations by brain sending nervous impulses. Gets the body ready for fight of flight, and increases supply of oxygen and glucose to cells
Adrenaline
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... is a hormone released by thyroid glands in the neck. Regulates metabolic rate when body is at rest. Stimulates protein synthesis for growth and development. Released in response to TSH which is released from pituitary gland.
Thyroxine
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Plant hormones: ... controls growth near tips in roots and shoots. Controls growth of plant in response to light and gravity. Produced in tips, moves backwards to stimulate cell elongation which occurs in cells just behind tips.
Auxin
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... of plant hormones: Auxin: Killing Weeds- only affect certain plants. Growing from cuttings with rooting powder- produce roots rapidly and grow. Growing cells in tissue culture- grow clones
Commercial Uses
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... is a gas produced by aging parts of plants. Controls cell division, stimulates enzymes for fruit to ripen, commercially it's used to speed up ripening
Ethene
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... stimulates seed germination, stem growth and flowering. Used for: Controlling dormancy- seeds can germinate at different times of year with ... Inducing flowering- Flower without any changes to environment. Growing Larger Fruit
Gibberellin
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Other cards in this set
Card 2
Front
4 hormones: Produced in ovaries by remains of follicle, Maintains lining of uterus in the second half of the cycle, Inhibits release of LH and FSH
Back
Progesterone
Card 3
Front
Ways to ... : High amount of oestrogen prevent egg release. Progesterone prevents sperm meeting the egg. The pill which is 99% effective, contains progesterone and oestrogen. Progesterone only pill. Contraceptive patch, implant, injection and IUD
Back
Card 4
Front
... are non-hormonal ways of contraception which are designed to stop the sperm getting to the egg. Method include: Condoms- protect against STD's, Diaphragm- Uses spermicide to kill sperm, Spermicide- can be used alone but not as effective
Back
Card 5
Front
Avoiding ... : Sterilisation- Cutting or tying fallopian tubes, Natural Methods- Finding out when the cycle occurs, Abstinence- don't have sex at all
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