Conditions in the human body must be regulated to maintain a stable internal environment - Edexcel - GCSE Biology - Question 5 - 2012 - Paper 1
Question 5
Conditions in the human body must be regulated to maintain a stable internal environment.
Name the process that maintains a stable internal environment.
(ii) Comple... show full transcript
Worked Solution & Example Answer:Conditions in the human body must be regulated to maintain a stable internal environment - Edexcel - GCSE Biology - Question 5 - 2012 - Paper 1
Step 1
Name the process that maintains a stable internal environment.
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Answer
The process that maintains a stable internal environment is called homeostasis.
Step 2
The temperature that enzymes work most effectively in the human body is
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Answer
D 37°C
Step 3
Explain how this information is transmitted to the brain.
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Answer
Receptor cells in the skin detect changes in temperature and send this information through sensory neurons. These neurons transmit electrical impulses to the spinal cord, where the information is relayed to the brain. The brain then processes this information and can send signals to initiate responses, such as shivering or sweating, to regulate body temperature.
