Harry.Y
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Need help on this topic
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Jpw1097
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(Original post by Harry.Y)
Need help on this topic
What exactly do you need help with? It's a very vague question and homeostasis is a very, very broad topic.
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Harry.Y
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(Original post by Jpw1097)
What exactly do you need help with? It's a very vague question and homeostasis is a very, very broad topic.
can you tell me what is the topic overall is about?

thanks
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RevisionGuide
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(Original post by Harry.Y)
can you tell me what is the topic overall is about?

thanks
Homeostasis means 'same state' which refers to keeping factors constant in order to adapt to changes in an environment. For example body temperature must be controlled and capped at around 37 C which is the preferable temperature for cells and enzyme to function in. When temperature in the environment falls causing body temperature to drop, effectors and receptors come into play and this makes up the response to the change. Receptors simply detect a change in state and responds to a stimulus, whereas effectors are the actual cells/tissues/organs that produce a response to the stimulus. Effectors are normally muscles which contract/relax to produce an action, or glands which release a molecule such as a hormone. Going back to the example of a fall in body temperature, one way in which the body deals with this is the hypothalamus in the brain detects the temperature change and activates receptors located on the skin. Under the hairs on your arms/legs are 'erector' muscles which contract to raise the hairs on your skin which causes the surrounding air protrude. There are many more examples of receptors and effectors that you can simply research, but make sure its relevant to your specification. If you need any more help dont hesitate to ask.
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Harry.Y
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(Original post by RevisionGuide)
Homeostasis means 'same state' which refers to keeping factors constant in order to adapt to changes in an environment. For example body temperature must be controlled and capped at around 37 C which is the preferable temperature for cells and enzyme to function in. When temperature in the environment falls causing body temperature to drop, effectors and receptors come into play and this makes up the response to the change. Receptors simply detect a change in state and responds to a stimulus, whereas effectors are the actual cells/tissues/organs that produce a response to the stimulus. Effectors are normally muscles which contract/relax to produce an action, or glands which release a molecule such as a hormone. Going back to the example of a fall in body temperature, one way in which the body deals with this is the hypothalamus in the brain detects the temperature change and activates receptors located on the skin. Under the hairs on your arms/legs are 'erector' muscles which contract to raise the hairs on your skin which causes the surrounding air protrude. There are many more examples of receptors and effectors that you can simply research, but make sure its relevant to your specification. If you need any more help dont hesitate to ask.
Thanks a lot! That helps a lot!
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Harry.Y
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(Original post by RevisionGuide)
Homeostasis means 'same state' which refers to keeping factors constant in order to adapt to changes in an environment. For example body temperature must be controlled and capped at around 37 C which is the preferable temperature for cells and enzyme to function in. When temperature in the environment falls causing body temperature to drop, effectors and receptors come into play and this makes up the response to the change. Receptors simply detect a change in state and responds to a stimulus, whereas effectors are the actual cells/tissues/organs that produce a response to the stimulus. Effectors are normally muscles which contract/relax to produce an action, or glands which release a molecule such as a hormone. Going back to the example of a fall in body temperature, one way in which the body deals with this is the hypothalamus in the brain detects the temperature change and activates receptors located on the skin. Under the hairs on your arms/legs are 'erector' muscles which contract to raise the hairs on your skin which causes the surrounding air protrude. There are many more examples of receptors and effectors that you can simply research, but make sure its relevant to your specification. If you need any more help dont hesitate to ask.
can you also summarize the topic chemical and energy changes please?
thanks
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RevisionGuide
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What exactly do you mean by 'chemical and energy changes', can you be more specific please
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Harry.Y
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(Original post by RevisionGuide)
What exactly do you mean by 'chemical and energy changes', can you be more specific please
It is fine now, thanks a lot
Really appreciate and thankful for your help!
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