What is Homeostasis?
9th Grade Ā· Science Ā· 40 minĀ· Igcse Biology 14.4
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Learning Objective
I can define homeostasis and explain its importance for maintaining stable internal conditions.
- 1
Homeostasis is the state of balance in the body, ensuring that conditions like blood pH, blood glucose, and internal body temperature remain within a certain range.
- 2
In negative feedback, a variable triggers a counteracting response to return to a set point, while in positive feedback, the variable is intensified instead of counteracted.
- 3
An example of positive feedback is the birth of a human baby, where pressure on the cervix leads to more hormone release and stronger uterine contractions.
