AQA GCSE COMBINED SCIENCE BIOLOGY - PAPER 2
2025-2026 (VERIFIED) QUESTIONS AND ANSWERS
A+ GUARANTEED
What is homeostasis? - ANS-The process of
maintaining a stable internal environment
Why is homeostasis important? - ANS-Because it is
essential for the survival of cells
What does the control system do? - ANS-Keeps the
conditions in your body steady
What happens in the blood glucose level is too
high? - ANS-the control system decreases the level
What happens in the blood glucose level is too low?
- ANS-the control system increases the level
,What does the nervous system mean? - ANS-that
humans react to their surroundings and coordinate
their behaviour
What does the Central Nervous System (CNS)
consist of? - ANS-brain and spinal cord
What is the CNS connected to? - ANS-the body by
sensory neurones and motor neutrons
What is do Sensory Neurones do? - ANS-They carry
information as electrical impulses from the receptor
to the CNS
What do Motor Neutrons do? - ANS-They carry
electrical impulses from the CNS to effectors
What are Receptors? - ANS-Cells that detect stimuli
,Give an example of a receptor - ANS-Receptors in
the ear detect sound
What do Effectors responded to? - ANS-Electrical
impulses and bring about to a change
Give 2 examples of effectors - ANS-Muscles and
glands.
What is the process of CNS? - ANS-Stimulus ->
Receptor -> Sensory Neurone -> CNS -> Motor
Neurone -> Effector -> Response
What is a Synapse? - ANS-it is where two neurones
join together
What are Reflexes? - ANS-an automatic responses
to prevent injury
, What are hormones? - ANS-Chemical messengers
sent in the blood
What is another name for the Pituitary Gland? -
ANS-Master Gland
What does the Pituitary Gland produce? - ANS-
many hormones that regulate body conditions
What do Ovaries produce? - ANS-oestrogen
What is oestrogen involved in? - ANS-Menstrual
cycle
What do the testes produce? - ANS-testosterone
What do the testes control? - ANS-puberty and
sperm production in men
2025-2026 (VERIFIED) QUESTIONS AND ANSWERS
A+ GUARANTEED
What is homeostasis? - ANS-The process of
maintaining a stable internal environment
Why is homeostasis important? - ANS-Because it is
essential for the survival of cells
What does the control system do? - ANS-Keeps the
conditions in your body steady
What happens in the blood glucose level is too
high? - ANS-the control system decreases the level
What happens in the blood glucose level is too low?
- ANS-the control system increases the level
,What does the nervous system mean? - ANS-that
humans react to their surroundings and coordinate
their behaviour
What does the Central Nervous System (CNS)
consist of? - ANS-brain and spinal cord
What is the CNS connected to? - ANS-the body by
sensory neurones and motor neutrons
What is do Sensory Neurones do? - ANS-They carry
information as electrical impulses from the receptor
to the CNS
What do Motor Neutrons do? - ANS-They carry
electrical impulses from the CNS to effectors
What are Receptors? - ANS-Cells that detect stimuli
,Give an example of a receptor - ANS-Receptors in
the ear detect sound
What do Effectors responded to? - ANS-Electrical
impulses and bring about to a change
Give 2 examples of effectors - ANS-Muscles and
glands.
What is the process of CNS? - ANS-Stimulus ->
Receptor -> Sensory Neurone -> CNS -> Motor
Neurone -> Effector -> Response
What is a Synapse? - ANS-it is where two neurones
join together
What are Reflexes? - ANS-an automatic responses
to prevent injury
, What are hormones? - ANS-Chemical messengers
sent in the blood
What is another name for the Pituitary Gland? -
ANS-Master Gland
What does the Pituitary Gland produce? - ANS-
many hormones that regulate body conditions
What do Ovaries produce? - ANS-oestrogen
What is oestrogen involved in? - ANS-Menstrual
cycle
What do the testes produce? - ANS-testosterone
What do the testes control? - ANS-puberty and
sperm production in men
