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MassachusettsBiologyQuick questions
Module 4: Anatomy and physiology
Quick questions on Homeostasis and feedback - MA High School Biology MCAS Module 4
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is temperature regulation?Show answer
If body temperature rises above the set point, sensors detect it, and effectors respond by sweating (heat lost as sweat evaporates) and widening skin blood vessels (more heat lost from the blood). If temperature falls, the body shivers (muscle activity generates heat) and narrows skin blood vessels (less heat lost). Each response opposes the change.
What is blood glucose regulation?Show answer
After a meal, blood glucose rises; the pancreas releases insulin, which makes body cells take up and store glucose, so glucose falls. Between meals, glucose falls; the pancreas releases glucagon, which makes the liver release stored glucose, so glucose rises. The two hormones work in opposite directions to hold glucose near its set point.
What is q1?Show answer
State the three parts of a negative feedback loop. [2]
What is q2?Show answer
Explain why blood glucose control is an example of negative feedback. [2]
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