AQA · GCSE · Biology · Higher
Homeostasis concept definition
Conditions inside and outside of the human body often change. Homeostasis helps the human body to survive changing conditions.
Explain what is meant by the term 'homeostasis'.
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Marking points
- 1 Defines homeostasis as regulation/maintenance of internal conditions.
- 2 Links this regulation to optimum conditions for cells/enzymes or optimum body functioning.
Full-mark answer
Homeostasis is the regulation of internal conditions to keep them at optimum levels for cells and enzymes to function.
Why this answer loses marks
Homeostasis keeps body temperature constant.
That is only one example; define regulation of internal conditions and link it to optimum cell or enzyme function.