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