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gcse biology- homeostasis and response
Fichas del conjunto (13)
- 1what is a stimulus?a change in the environment
- 2what is homesostasis?maintaining a stable internal environment
- 3what are the three main components of an automatic control system?receptors, coordination centre and effectors
- 4what does an effector do?detects a stimulus
- 5what is the role of the coordiantion centre?receives and organises the information and organises a response
- 6what does an effector do?produces a response which counteracts the change
- 7what does the nervous system do?detects and reacts to stiumli
- 8what is the CNS?central nervous system- consists of the brain and the spinal cord
- 9what does a sensory neurone do?carries information as electrical impulses from the receptors to the CNS
- 10what does a motor neurone do?the neurones that carry electrical impulses from the CNS to effectors
- 11give examples of effectors?all muscels and glands which respond to nervous impulses
- 12what is a synapse?connection between two neurones
- 13what is a reflex?a rapid, automatic response to a stimulus that doesn't involve the conscious part of the brain
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- quick fire questions for GCSE biology on homeostasis and response
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- masooma khan
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