AQA GCSE Biology Paper 2 Actual Exam
Study Questions with Verified Answers
Already Graded A+
1. genome - ANSWER an entire genetic code
2. gene - ANSWER a portion of DNA that codes for protien
3. genotype - ANSWER a specific genetic code
4. phenotype - ANSWER how genetic code is shown physically
5. What is progesterone? - ANSWER secreted by ovaries and maintains uterus
lining
6. forms of contraception - ANSWER FSH-inhibiting pills (so no eggs can
mature.)
progesterone implant (to stop eggs being released.)
condom (used as a physical barrier.)
IUD (stops egg embedding in lining.)
avoiding intercourse.
7. invitro fertilization - ANSWER eggs collected after inducing release with
LH to be fertilised in a lab then inserted back into uterus.
(hard, expensive, low success rate)
,8. Meiosis - ANSWER Cell division that produces gametes (genetically
different from parent cells but produces identical cells)
9. sexual reproduction - ANSWER A reproductive process that involves two
parents that combine their genetic material to produce a new organism,
which differs from both parents (most animals)
10.asexual reproduction - ANSWER happens by mitosis meaning the daughter
cells are identical
11.heterozygous and homozygous - ANSWER **hetero - different
**homo - same
12.punnet square - ANSWER diagram that can be used to predict the genotype
and phenotype combinations of a genetic cross
13.Darwin's Theory of Evolution - ANSWER Those individuals that are best
adapted to the environment will survive and reproduce; those traits that help
them, become more common in a species and maladaptive traits die out.
This is called natural Selection.
14.Lamarck's Theory of Evolution - ANSWER the idea that acquired traits,
like a stretched neck in a giraffe from eating from trees, is passed on to
offspring
15.selective breeding - ANSWER the process of selecting organisms with
desired traits to be parents of the next generation
,16.species - ANSWER A group of similar organisms that can breed and
produce fertile offspring.
17.Homeostasis - ANSWER an organisms ability to maintain regular internal
conditions so crucial reactions can take place in optimum rates
18.what in the body needs to be regulated? - ANSWER blood glucose
concentration
19.where are the central nervous systems? - ANSWER the brain and spinal
cord
20.what is the purpose of the pituitary gland? - ANSWER it is the master gland
that sends signals to other glands.
21.what is the purpose of the pancreas? - ANSWER secretes insulin and
glucagon to control blood sugar
22.what is the purpose of the testes? - ANSWER to produce sperm
23.what is the purpose of the ovaries? - ANSWER releases eggs and secretes
hormones
24.what is the purpose of the adrenal glands? - ANSWER releases adrenaline
(causing the fight or flight)
25.what is the purpose of the thyroid? - ANSWER controls growth,
metabolism and more
, 26.how does the body control high blood glucose levels? - ANSWER -
pancreas secretes insulin
-causes glucose to move from bloodstream into cells for respiration
-excess glucose is stored as glycogen as an energy store
27.how does the body control low blood glucose levels? - ANSWER -pancreas
secretes glucagon
-causes liver and muscles to convert glycogen back into glucose
28.type 1 diabetes - ANSWER when the pancreas cant produce insulin so
injections are needed (usually genetic)
29.type 2 diabetes - ANSWER cells donnt absorb the glucose normally
(usually caused by lifestyle ie obesity etc)
30.what is FSH (follicle stimulating hormome) - ANSWER from the pituitary
gland and causes eggs to mature
31.what is oestrogen? - ANSWER causes uterus lining to thicken and inhibits
FSH so no more eggs mature until the next cylce. also causes pituitary gland
to secrete.
32.what is LH (luteinising hormone)? - ANSWER causes egg to be released
towards uterus so sperm can fertilise it while in the oviduct
33.genetic engineering - ANSWER Process of making changes in the DNA
code of living organisms
Study Questions with Verified Answers
Already Graded A+
1. genome - ANSWER an entire genetic code
2. gene - ANSWER a portion of DNA that codes for protien
3. genotype - ANSWER a specific genetic code
4. phenotype - ANSWER how genetic code is shown physically
5. What is progesterone? - ANSWER secreted by ovaries and maintains uterus
lining
6. forms of contraception - ANSWER FSH-inhibiting pills (so no eggs can
mature.)
progesterone implant (to stop eggs being released.)
condom (used as a physical barrier.)
IUD (stops egg embedding in lining.)
avoiding intercourse.
7. invitro fertilization - ANSWER eggs collected after inducing release with
LH to be fertilised in a lab then inserted back into uterus.
(hard, expensive, low success rate)
,8. Meiosis - ANSWER Cell division that produces gametes (genetically
different from parent cells but produces identical cells)
9. sexual reproduction - ANSWER A reproductive process that involves two
parents that combine their genetic material to produce a new organism,
which differs from both parents (most animals)
10.asexual reproduction - ANSWER happens by mitosis meaning the daughter
cells are identical
11.heterozygous and homozygous - ANSWER **hetero - different
**homo - same
12.punnet square - ANSWER diagram that can be used to predict the genotype
and phenotype combinations of a genetic cross
13.Darwin's Theory of Evolution - ANSWER Those individuals that are best
adapted to the environment will survive and reproduce; those traits that help
them, become more common in a species and maladaptive traits die out.
This is called natural Selection.
14.Lamarck's Theory of Evolution - ANSWER the idea that acquired traits,
like a stretched neck in a giraffe from eating from trees, is passed on to
offspring
15.selective breeding - ANSWER the process of selecting organisms with
desired traits to be parents of the next generation
,16.species - ANSWER A group of similar organisms that can breed and
produce fertile offspring.
17.Homeostasis - ANSWER an organisms ability to maintain regular internal
conditions so crucial reactions can take place in optimum rates
18.what in the body needs to be regulated? - ANSWER blood glucose
concentration
19.where are the central nervous systems? - ANSWER the brain and spinal
cord
20.what is the purpose of the pituitary gland? - ANSWER it is the master gland
that sends signals to other glands.
21.what is the purpose of the pancreas? - ANSWER secretes insulin and
glucagon to control blood sugar
22.what is the purpose of the testes? - ANSWER to produce sperm
23.what is the purpose of the ovaries? - ANSWER releases eggs and secretes
hormones
24.what is the purpose of the adrenal glands? - ANSWER releases adrenaline
(causing the fight or flight)
25.what is the purpose of the thyroid? - ANSWER controls growth,
metabolism and more
, 26.how does the body control high blood glucose levels? - ANSWER -
pancreas secretes insulin
-causes glucose to move from bloodstream into cells for respiration
-excess glucose is stored as glycogen as an energy store
27.how does the body control low blood glucose levels? - ANSWER -pancreas
secretes glucagon
-causes liver and muscles to convert glycogen back into glucose
28.type 1 diabetes - ANSWER when the pancreas cant produce insulin so
injections are needed (usually genetic)
29.type 2 diabetes - ANSWER cells donnt absorb the glucose normally
(usually caused by lifestyle ie obesity etc)
30.what is FSH (follicle stimulating hormome) - ANSWER from the pituitary
gland and causes eggs to mature
31.what is oestrogen? - ANSWER causes uterus lining to thicken and inhibits
FSH so no more eggs mature until the next cylce. also causes pituitary gland
to secrete.
32.what is LH (luteinising hormone)? - ANSWER causes egg to be released
towards uterus so sperm can fertilise it while in the oviduct
33.genetic engineering - ANSWER Process of making changes in the DNA
code of living organisms
