MDCAT · CHAPTER 15
Homeostasis
A complete mental model for receptors, control centres, effectors and the return toward a normal range.
Your study notes
01 / LESSON
Build the explanation.
- Distinguish a set point from the normal range around it.
- Assign the correct role to receptors, control centres and effectors.
- Apply the model to temperature and blood-glucose regulation.
02 / NOTES
The essentials, in one place.
- Homeostasis maintains variables within limits, not at perfect constancy.
- Receptors detect, control centres coordinate and effectors correct.
- The response must oppose the original deviation.
- Always identify the regulated variable before naming the components.
03 / ACTIVITY
Test the idea by changing something.
Predict the result first, run the activity, then explain what changed and why.
04 / DIAGRAM
Make the connections visible.
A variable leaves its normal range.
A receptor senses the change.
A control centre selects a response.
An effector reduces the deviation.
Cover the labels, redraw the sequence or comparison, and explain each connection aloud.
See diagrams in the full explanation ↗05 / QUIZ
Retrieve before you reread.
Build a timed test from this chapter’s 100 practice questions. Questions and options are shuffled; missed answers feed your revision notebook.
Original practice items, including related concept variants; not official examination questions.06 / REVISION SHEET
Take the chapter away with you.
A print-friendly sheet brings together the learning targets, key points, concept diagram, written recall prompts and applied MCQs. Add the answer key when you are ready to check.
Print / save the chapter sheet ↗