AQA GCSE BIOLOGY PAPER 2 FOUNDATION
8464/B/2F TOPIC-BASED REVISION EXAM
QUESTIONS AND DETAILED SOLUTIONS
◉ What do the reproductive hormones cause during *puberty*?
Answer: Secondary sex characteristics to develop
◉ What is the *oestrogen*? Answer: The main female reproductive
hormone produced in the ovary
◉ What is *ovulation*? Answer: When eggs begin to mature at
puberty and one is released approximately every 28 days
◉ What is *testosterone*? Answer: The main male reproductive
hormone produced by the testes and it stimulates sperm production
◉ What does *follicle stimulating hormones* (FSH) do? Answer:
Causes maturation of an egg in the ovary
◉ What does *luteinising hormones* (LH) do? Answer: Stimulates
the release of the egg
◉ What *oestrogen* do? Answer: Causes the uterus lining to develop
,◉ What does *progesterone* do? Answer: Maintains the lining of the
uterus
◉ What do *oral contraceptives* contain? Answer: Hormones to
inhibit FSH production so that no eggs mature
◉ What is an *injection, implant or skin patch*? Answer: A slow
release progesterone to inhibit the maturation and release of eggs
for a number of months or years
◉ What do *barrier methods* prevent? Answer: The sperm reaching
an egg
◉ What do *intrauterine devices* prevent? Answer: The
implantation of an embryo or release a hormone
◉ What do *spermicide agents* do? Answer: Kill/disable sperm
◉ What two other methods are there to *prevent contraception*?
Answer: • abstaining from intercourse when an egg may be in the
oviduct
• surgical methods of male and female sterilisation
, ◉ What is *In Vitro Fertilisation (IVF) treatment*? Answer: Giving a
mother FSH and LH to stimulate the maturation of several eggs
◉ What happens *during* IVF treatment? Answer: • The eggs are
collected from the mother and fertilised by sperm from the father in
the laboratory.
• The fertilised eggs develop into embryos.
• At the stage when they are tiny balls of cells, one or two embryos
are inserted into the mother's uterus (womb)
◉ What are the *cons* of IVF? Answer: • it is very emotionally and
physically stressful
• the success rates are not high
• it can lead to multiple births which are a risk to both the babies
and the mother
◉ What is *adrenaline*? Answer: Produced by the adrenal glands in
times of fear or stress
◉ What is the *role* of adrenaline? Answer: Increases the heart rate
and boosts the delivery of oxygen and glucose to the brain and
muscles, preparing the body for 'flight or fight'
8464/B/2F TOPIC-BASED REVISION EXAM
QUESTIONS AND DETAILED SOLUTIONS
◉ What do the reproductive hormones cause during *puberty*?
Answer: Secondary sex characteristics to develop
◉ What is the *oestrogen*? Answer: The main female reproductive
hormone produced in the ovary
◉ What is *ovulation*? Answer: When eggs begin to mature at
puberty and one is released approximately every 28 days
◉ What is *testosterone*? Answer: The main male reproductive
hormone produced by the testes and it stimulates sperm production
◉ What does *follicle stimulating hormones* (FSH) do? Answer:
Causes maturation of an egg in the ovary
◉ What does *luteinising hormones* (LH) do? Answer: Stimulates
the release of the egg
◉ What *oestrogen* do? Answer: Causes the uterus lining to develop
,◉ What does *progesterone* do? Answer: Maintains the lining of the
uterus
◉ What do *oral contraceptives* contain? Answer: Hormones to
inhibit FSH production so that no eggs mature
◉ What is an *injection, implant or skin patch*? Answer: A slow
release progesterone to inhibit the maturation and release of eggs
for a number of months or years
◉ What do *barrier methods* prevent? Answer: The sperm reaching
an egg
◉ What do *intrauterine devices* prevent? Answer: The
implantation of an embryo or release a hormone
◉ What do *spermicide agents* do? Answer: Kill/disable sperm
◉ What two other methods are there to *prevent contraception*?
Answer: • abstaining from intercourse when an egg may be in the
oviduct
• surgical methods of male and female sterilisation
, ◉ What is *In Vitro Fertilisation (IVF) treatment*? Answer: Giving a
mother FSH and LH to stimulate the maturation of several eggs
◉ What happens *during* IVF treatment? Answer: • The eggs are
collected from the mother and fertilised by sperm from the father in
the laboratory.
• The fertilised eggs develop into embryos.
• At the stage when they are tiny balls of cells, one or two embryos
are inserted into the mother's uterus (womb)
◉ What are the *cons* of IVF? Answer: • it is very emotionally and
physically stressful
• the success rates are not high
• it can lead to multiple births which are a risk to both the babies
and the mother
◉ What is *adrenaline*? Answer: Produced by the adrenal glands in
times of fear or stress
◉ What is the *role* of adrenaline? Answer: Increases the heart rate
and boosts the delivery of oxygen and glucose to the brain and
muscles, preparing the body for 'flight or fight'
