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Homeostasis and negative feedback loops

10th grade (Year 11 in England) · 16 questions · Common Core: NGSS.HS-LS1-3 · England: GCSE Combined Science: Homeostasis and response

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Date

Score/ 16

1
Question 1
Homeostasis: which statement is NOT true?
- A. Negative feedback makes changes bigger.
- B. Effectors can be muscles or glands.
- C. In negative feedback, a rise in a value triggers changes that lower it.
- D. Homeostasis uses both nervous and hormonal responses.
2
Question 2
In a control system, what role do these play: sweat glands?
- A. receptor
- B. coordination centre
- C. effector
3
Question 3
Which is NOT controlled by homeostasis in humans?
- A. water levels in the body
- B. body temperature
- C. blood glucose concentration
- D. eye colour
4
Question 4
Homeostasis: which statement is NOT true?
- A. In negative feedback, a rise in a value triggers changes that lower it.
- B. Receptors carry out the response.
- C. Homeostasis uses both nervous and hormonal responses.
- D. Body temperature is kept close to 37 °C.
5
Question 5
In a control system, what role do these play: the spinal cord?
- A. receptor
- B. coordination centre
- C. effector
6
Question 6
Why is it important to keep internal conditions within narrow limits?
- A. So that hair grows faster
- B. Enzymes and cells only work well in a narrow range of conditions
- C. It is not important
- D. So that we never feel hungry
7
Question 7
Homeostasis: which statement is NOT true?
- A. Body temperature is kept close to 37 °C.
- B. Effectors can be muscles or glands.
- C. Homeostasis keeps every internal condition exactly constant.
- D. Homeostasis uses both nervous and hormonal responses.
8
Question 8
In a control system, what role do these play: muscles that cause shivering?
- A. receptor
- B. coordination centre
- C. effector
9
Question 9
Which is NOT controlled by homeostasis in humans?
- A. eye colour
- B. water levels in the body
- C. body temperature
- D. blood glucose concentration
10
Question 10
Homeostasis: which statement is NOT true?
- A. Effectors can be muscles or glands.
- B. Homeostasis uses both nervous and hormonal responses.
- C. Negative feedback makes changes bigger.
- D. Body temperature is kept close to 37 °C.
11
Question 11
In a control system, what role do these play: temperature receptors in the skin?
- A. receptor
- B. coordination centre
- C. effector
12
Question 12
What is negative feedback?
- A. Bad news from a doctor
- B. A change triggers a response that reverses the change, back towards the set point
- C. A change triggers a response that makes the change bigger
- D. A response that never stops
13
Question 13
Homeostasis: which statement is NOT true?
- A. Homeostasis uses both nervous and hormonal responses.
- B. Body temperature is kept close to 37 °C.
- C. Effectors can be muscles or glands.
- D. Receptors carry out the response.
14
Question 14
In a control system, what role do these play: muscles that cause shivering?
- A. receptor
- B. coordination centre
- C. effector
15
Question 15
Why is it important to keep internal conditions within narrow limits?
- A. It is not important
- B. So that we never feel hungry
- C. So that hair grows faster
- D. Enzymes and cells only work well in a narrow range of conditions
16
Question 16
Homeostasis: which statement is NOT true?
- A. Homeostasis uses both nervous and hormonal responses.
- B. Body temperature is kept close to 37 °C.
- C. Effectors can be muscles or glands.
- D. Negative feedback makes changes bigger.

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