AQA GCSE BIOLOGY PAPER 2
ACTUAL EXAM 2026 2027 VERIFIED
ANSWERS ACTUAL UPDATED
PRACTICE QUESTIONS TEST BANK
HIGH YIELD STUDY GUIDE EXAM
PREP MATERIAL LATEST VERSION
GRADED A+ SUCCESS REVIEW PACK
COMPLETE EDITION
1. What is homeostasis?: The maintenance of a constant internal environment.
2. What is a stimulus?: A change in your environment than requires a response.
e.g Light, sound, touch, pressure, pain, chemical or temperature.
3. What do the receptors do?: Detect the stimulus or change in environment.
4. What happens after the receptors?: Receptors send messages onse.
to the CNS via the sensory neurone.
5. What makes up the central nervous system?: The brain or
spinal cord
,
,AQA GCSE BIOLOGY ACTUAL EXAM
2026/2027 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH (VERIFIED
6. What is an effector?: Muscles or glands that bring about a resp
7. What do the muscles and glands do in response to stimuli?:
Muscles contract and glands secrete chemical substances(hormones).
the recep-
ANSWERS) |ALREADY GRADED A+
GUARANTEED PASS
8. What is a sensory neurone?: A neurone that carry information from tors to the
CNS.
9. What is a relay neurone?: Neurones that carry impulses from the sensory neurone
to the motor neurone.
10. What is a motor neurone?: Neurones that carry information fro m the CNS to
the effectors.
,
, ,
AQA GCSE BIOLOGY - PAPER 2 ACTUAL EXAM
2026/2027280 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH (VERIFIED
11. What is the nervous system?: It is a system that allows you to react to your
surroundings.
12. How do signals travel across a synapse?: The chemical or ne urotransmitter
diffuses across the synapse and binds to a complementary receptor o n the neurone
ext neurone.
(postsynaptic). This causes an electrical impulse to travel down the n
13. What is a synapse?: A gap between two neurones.
,
, ,
AQA GCSE BIOLOGY - PAPER 2 ACTUAL EXAM
2026/2027 280 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH (VERIFIED
ANSWERS) |ALREADY GRADED A+
GUARANTEED PASS
14. What is the thermoregulatory centre of the brain?: Near the hy pothalamus,
monitors the temperature of blood.
sory neu-(relay
15. Describe the stages in a reflex arc.: Stimulus->Receptor->sen rone->CNS
neurone) -> motor neurone -> effector -> respons e
16. Name responses that reduce body temperature.: Hairs lie flat, sweat and
blood vessels get wider(vasodilation)
17. What happens during vasodilation?: The blood vessels supplying the skin dilate
(widen). This helps to transfer energy to the environment.
18. Name responses that increase body temperature.: Hairs stand up, no sweat,
shivering and blood vessels constrict(vasoconstriction)
,
ACTUAL EXAM 2026 2027 VERIFIED
ANSWERS ACTUAL UPDATED
PRACTICE QUESTIONS TEST BANK
HIGH YIELD STUDY GUIDE EXAM
PREP MATERIAL LATEST VERSION
GRADED A+ SUCCESS REVIEW PACK
COMPLETE EDITION
1. What is homeostasis?: The maintenance of a constant internal environment.
2. What is a stimulus?: A change in your environment than requires a response.
e.g Light, sound, touch, pressure, pain, chemical or temperature.
3. What do the receptors do?: Detect the stimulus or change in environment.
4. What happens after the receptors?: Receptors send messages onse.
to the CNS via the sensory neurone.
5. What makes up the central nervous system?: The brain or
spinal cord
,
,AQA GCSE BIOLOGY ACTUAL EXAM
2026/2027 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH (VERIFIED
6. What is an effector?: Muscles or glands that bring about a resp
7. What do the muscles and glands do in response to stimuli?:
Muscles contract and glands secrete chemical substances(hormones).
the recep-
ANSWERS) |ALREADY GRADED A+
GUARANTEED PASS
8. What is a sensory neurone?: A neurone that carry information from tors to the
CNS.
9. What is a relay neurone?: Neurones that carry impulses from the sensory neurone
to the motor neurone.
10. What is a motor neurone?: Neurones that carry information fro m the CNS to
the effectors.
,
, ,
AQA GCSE BIOLOGY - PAPER 2 ACTUAL EXAM
2026/2027280 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH (VERIFIED
11. What is the nervous system?: It is a system that allows you to react to your
surroundings.
12. How do signals travel across a synapse?: The chemical or ne urotransmitter
diffuses across the synapse and binds to a complementary receptor o n the neurone
ext neurone.
(postsynaptic). This causes an electrical impulse to travel down the n
13. What is a synapse?: A gap between two neurones.
,
, ,
AQA GCSE BIOLOGY - PAPER 2 ACTUAL EXAM
2026/2027 280 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH (VERIFIED
ANSWERS) |ALREADY GRADED A+
GUARANTEED PASS
14. What is the thermoregulatory centre of the brain?: Near the hy pothalamus,
monitors the temperature of blood.
sory neu-(relay
15. Describe the stages in a reflex arc.: Stimulus->Receptor->sen rone->CNS
neurone) -> motor neurone -> effector -> respons e
16. Name responses that reduce body temperature.: Hairs lie flat, sweat and
blood vessels get wider(vasodilation)
17. What happens during vasodilation?: The blood vessels supplying the skin dilate
(widen). This helps to transfer energy to the environment.
18. Name responses that increase body temperature.: Hairs stand up, no sweat,
shivering and blood vessels constrict(vasoconstriction)
,
