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GCSE
Biology paper 2
Contraception
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Created by
Mabli Collyer
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Cards (40)
What is the main purpose of contraception?
To
prevent
pregnancy
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What hormone stimulates egg development in women?
FSH
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What triggers ovulation in women?
LH hormone
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What happens after an egg is released during ovulation?
It can
combine
with a
sperm cell
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Where does a fertilized egg implant?
In the
uterus wall
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What is the cervix?
Entrance to the
uterus
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How does contraception work in relation to pregnancy?
It
interrupts
the process of
fertilization
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How can contraception methods be categorized?
By
hormonal
and
non-hormonal
methods
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What do hormonal contraceptives release?
Estrogen
and
progesterone
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What does estrogen do in hormonal contraception?
Inhibits
FSH
production
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What does progesterone do in hormonal contraception?
Stimulates
thick
mucus
production
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What is the combined oral contraceptive pill commonly called?
The pill
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How effective is the combined oral contraceptive pill?
Over
99%
effective
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What are common side effects of the combined pill?
Headaches
and
nausea
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What is the progesterone-only pill's effectiveness compared to the combined pill?
Just
as
effective
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What is the contraceptive patch?
A sticker releasing
hormones
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How long does each contraceptive patch last?
One
week
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What is the contraceptive injection?
An injection of
progesterone
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How long does the contraceptive injection last?
Two
to
three
months
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What is the contraceptive implant?
A device
releasing
progesterone
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How long can the contraceptive implant last?
Up to
three
years
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What is an intrauterine device (IUD)?
A device placed
inside
the
uterus
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What does the plastic version of the IUD release?
Progesterone
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How does the copper IUD prevent pregnancy?
By
killing
sperm
in the
uterus
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How long can both types of IUD last?
Over
three
years
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What do non-hormonal contraceptives prevent?
Sperm
from meeting the
egg
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What do condoms do?
Trap
sperm
during intercourse
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What is a unique benefit of condoms?
They
protect
against
STDs
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What is a diaphragm in contraception?
A cup
blocking
sperm
entry
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Why must a diaphragm be used with spermicide?
To
improve
reliability
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What is the effectiveness of spermicides?
About
70%
effective
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What does sterilization in women involve?
Cutting
or
tying
fallopian tubes
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Why is female sterilization considered permanent?
It
prevents
eggs
from
reaching
the
uterus
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How can men undergo sterilization?
By
cutting
and
tying
sperm ducts
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What are natural methods of contraception?
Timing
sex
or
stopping
before
ejaculation
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Why are natural methods of contraception unreliable?
They lack
scientific
backing
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What is the only way to avoid pregnancy 100%?
Abstaining from
sex
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What are the main methods of contraception?
Hormonal methods
Combined oral contraceptive pill
Progesterone-only pill
Contraceptive patch
Contraceptive injection
Contraceptive implant
Intrauterine device (IUD)
Non-hormonal methods
Condoms
Diaphragm
Spermicides
Sterilization
Natural methods
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What are the pros and cons of hormonal contraceptives?
Pros:
Highly
effective
Regulate
menstrual cycles
Reduce
menstrual
cramps
Cons:
Possible
side
effects
(e.g.,
headaches
,
nausea
)
Require
consistent
use
May not be
suitable
for everyone
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What are the pros and cons of non-hormonal contraceptives?
Pros:
No
hormonal
side
effects
Protect
against
STDs
(condoms)
Cons:
Generally less
effective
May require additional
methods
(e.g.,
spermicide
with
diaphragm)
Some methods are
invasive
(e.g.,
sterilization)
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