- detect stimuli - are specific, so only detect one particular stimulus - can be whole cells and proteins on cell surface membranes
1 of 5
Effectors
- bring about a response to a stimulus - can be muscle cells and cells found in glands
2 of 5
Cell Signalling
- happens when receptors need to communicate with effectors - can occur between adjacent cells or between distant cells - cell-surface receptors allow cells to recognise the chemicals involved in cell signalling
3 of 5
Homeostasis
- involves control systems that keep your internal environment constant within certain limits - vital for cells to function normally and to stop them being damaged
4 of 5
Negative Feedback
- receptors detect when a level is too high or too low - this information is communicated to the effectors - the effectors respond to counteract the change, bringing the level back to normal
5 of 5
Other cards in this set
Card 2
Front
- bring about a response to a stimulus - can be muscle cells and cells found in glands
Back
Effectors
Card 3
Front
- happens when receptors need to communicate with effectors - can occur between adjacent cells or between distant cells - cell-surface receptors allow cells to recognise the chemicals involved in cell signalling
Back
Card 4
Front
- involves control systems that keep your internal environment constant within certain limits - vital for cells to function normally and to stop them being damaged
Back
Card 5
Front
- receptors detect when a level is too high or too low - this information is communicated to the effectors - the effectors respond to counteract the change, bringing the level back to normal
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