AQA GCSE Combined Science Biology -
Paper 2 perfect answers
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
What does the thyroid produce? - Ans>>Thyroxine
What is Thyroxine involved in? - Ans>>Rate of metabolism
heart rate
temperature
What does the Adrenal Gland produce? - Ans>>Adrenaline
What is Adrenaline involved in? - Ans>>Prepare the body for a fight or flight
response
What does the pancreas produce? - Ans>>insulin
What is Insulin used i? - Ans>>Regulating the blood glucose level.
Give 3 characteristics of nerves - Ans>>Very fast action
Act for a short time
Act on a very precise
Give 3 characteristics of hormones - Ans>>Slower action
Act for a long time
Act in a more general way
What is Insulin used for? - Ans>>Reducing blood glucose levels
How many types of diabetes are there ? - Ans>>2
What happens in type 1 diabetes? - Ans>>The pancreas produces little or no insulin
How do you treat Diabetes type 1? - Ans>>Need injections of insulin throughout the
day
What is type 2 diabetes? - Ans>>Where a person becomes resistant to their own
insulin
What can type 2 diabetes be influenced by? - Ans>>a person's lifestyle choices
How do you treat Diabetes type 2? - Ans>>eating a carbohydrate -controlled diet
and doing controlled regular exercise
Paper 2 perfect answers
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
What does the thyroid produce? - Ans>>Thyroxine
What is Thyroxine involved in? - Ans>>Rate of metabolism
heart rate
temperature
What does the Adrenal Gland produce? - Ans>>Adrenaline
What is Adrenaline involved in? - Ans>>Prepare the body for a fight or flight
response
What does the pancreas produce? - Ans>>insulin
What is Insulin used i? - Ans>>Regulating the blood glucose level.
Give 3 characteristics of nerves - Ans>>Very fast action
Act for a short time
Act on a very precise
Give 3 characteristics of hormones - Ans>>Slower action
Act for a long time
Act in a more general way
What is Insulin used for? - Ans>>Reducing blood glucose levels
How many types of diabetes are there ? - Ans>>2
What happens in type 1 diabetes? - Ans>>The pancreas produces little or no insulin
How do you treat Diabetes type 1? - Ans>>Need injections of insulin throughout the
day
What is type 2 diabetes? - Ans>>Where a person becomes resistant to their own
insulin
What can type 2 diabetes be influenced by? - Ans>>a person's lifestyle choices
How do you treat Diabetes type 2? - Ans>>eating a carbohydrate -controlled diet
and doing controlled regular exercise
