Biology Topic Practice

Negative Feedback Explained

Negative feedback is the fundamental control mechanism that keeps your body stable by reversing any changes.

Can you give one example of negative feedback in the human body?

What is Negative Feedback Explained?

"Negative feedback is a biological control system mechanism that works to counteract changes in internal conditions."

Question 1

Which statement best describes homeostasis?

Question 2

Which three internal conditions are specifically controlled in the human body by homeostasis?

Question 3

In a control system, what is the role of receptors?

The Feedback Loop

Stimulus: A change occurs (e.g., blood sugar rises).

Response: The body acts to reverse it (e.g., insulin is released).

Result: Conditions return to the set point (optimum level).

Exam Tip

Think of negative feedback like a thermostat in a house.

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