A few quick questions on tracing a negative feedback loop in two examples, and finding which part has failed in a disorder. Taught in class; use this to check yourself.
Your body keeps glucose and temperature steady all day. What happens when one part of the loop stops working?
Your teacher covers other feedback examples and disorders in class. These questions check the basics: the parts of a loop, two examples, and what a failure does.
Make your prediction first. Help opens once you've locked it in.
Which part of the temperature loop is it?
On a hot day, match each part of the temperature loop.
Which part of the loop has failed?
A self-test on tracing complete negative feedback loops and locating the failure in a disorder (AC9S9U01, nodes 6 and 7, both hinge nodes taught in class). About 14 minutes.
Open the teacher guide: answers, solutions, slides and a worksheet.
A Quick check: a few questions on what students should know for AC9S9U01 nodes 6 and 7, which you teach in class. It has no board, no clip and no new teaching, and it is optional, so it never holds up course completion. Set the width with ?width=minimum, typical (default) or wider.
Use it as a self-test after your teaching, a starter, or revision. The Feedback lesson on screen does body temperature; blood glucose and the disorders are for class. Name the parts of the loop in your own words consistently so students can transfer them.
Naming which part fails, not just that something is wrong. When a student says the body cannot control glucose, ask which step stops.
Stretch: Choose another loop (water balance, blood pressure). Name its set point, receptor, control centre and effector, then say what happens if one part fails.
Support: Give the loop as four labelled boxes with arrows to fill in.
Back in class: case studies of feedback disorders; a graph of blood glucose in a healthy person and a person with diabetes.