Negative Feedback Explained

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).

Question 1

Which statement best describes homeostasis?

Accepted Answer

The regulation of internal conditions to maintain optimum conditions for function

Answer

The digestion of food into smaller molecules

Answer

The movement of water across a partially permeable membrane

Answer

The release of energy from glucose

Question 2

Which statement accurately describes homeostasis basics at a GCSE level?

Accepted Answer

Correct pedagogical fact about basics

Answer

Common misconception about basics

Answer

Incorrect scale or unit

Answer

Irrelevant detail

Question 3

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

Accepted Answer

To detect stimuli

Answer

To produce hormones

Answer

To carry out the response

Answer

To store glucose as glycogen

Question 4

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

Accepted Answer

Blood glucose, body temperature and water levels

Answer

Heart size, body mass and height

Answer

Eye colour, shoe size and blood group

Answer

Finger length, hair colour and lung capacity

What is Negative Feedback Explained?