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GCSE Biology Paper 2
Contraception
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Cards (57)
What is the scientific term for preventing fertilization?
Contraception
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What is a common method of contraception?
Using
oral contraceptives
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What do oral contraceptives contain?
Hormones
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How do oral contraceptives work?
They prevent the production of
FSH
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What does FSH cause?
An egg to mature
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What happens if a woman takes a contraceptive pill?
It prevents
eggs
from maturing
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What is one advantage of the contraceptive pill?
It's highly
effective
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What makes the contraceptive pill highly effective?
If it's taken
correctly
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What is a disadvantage of the contraceptive pill?
It must be taken
every
day
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What happens if a woman forgets to take the contraceptive pill?
There's a risk of
pregnancy
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What are some potential side effects of certain contraceptive pills?
Increased risk of
breast cancer
or
blood clots
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How significant are the risks of side effects from contraceptive pills?
These risks are
small
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What are other hormonal forms of contraception mentioned?
Implant
,
skin patch
, or
injection
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What hormone do implants, skin patches, and injections contain?
Progesterone
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How does progesterone in implants, skin patches, and injections work?
Stops eggs from
maturing
or being
released
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What is an advantage of implants, skin patches, and injections over the pill?
They're more
convenient
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How long does a contraceptive implant last?
Three
years
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How long does a contraceptive patch last?
Around
one week
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How long does a contraceptive injection last?
Around
thirteen
weeks
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What is a disadvantage of hormonal forms of contraception?
They can have
side effects
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What do the pill and other hormonal contraceptives not protect against?
Sexually transmitted infections
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What is another form of contraception?
Barrier method
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How do barrier methods work?
Prevent the
sperm
from reaching an egg
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When are barrier methods an effective form of contraception?
If they used
correctly
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What is an advantage of barrier methods?
They don't have
side effects
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Why don't barrier methods have side effects?
Because they don't use
hormones
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What can condoms also reduce the risk of?
STIs
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What is a disadvantage of condoms?
They can
break
or
slip
off
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What makes condoms and diaphragms more effective?
If they use with a
spermicide
gel
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How does spermicide gel work?
Kill
or
disable
sperm
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What is an intrauterine device also called?
The
coil
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How do IUDs work?
Prevent an
embryo
from implanting
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How do some coils reduce the chances of fertilization?
Release
hormones
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How effective is an IUD?
Highly
effective
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What is a benefit of IUDs?
They also have very few
side effects
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What does an IUD not protect against?
Sexually transmitted infections
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What is surgical contraception called?
Sterilization
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How long can an IUD prevent pregnancy for?
Up to
10 years
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What does sterilization do in women?
Prevents the egg from reaching the
uterus
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What does sterilization do in men?
Prevents the
sperm
from leaving the
penis
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