How the body warms up and cools down
10th grade (Year 11 in England) · 16 questions · Common Core: NGSS.HS-LS1-3 · England: GCSE Biology: Homeostasis and response (control of body temperature)
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Question 1
Why does shivering warm you up?
- A. It shakes cold air away
- B. Rapid muscle contractions increase respiration, which releases heat
- C. It widens blood vessels
- D. It makes sweat
Question 2
When does this happen: hairs lie flat?
- A. response when too hot
- B. response when too cold
Question 3
Temperature control: which statement is NOT true?
- A. Body temperature control uses hormones only.
- B. The hypothalamus contains the thermoregulatory centre.
- C. Sweating cools the body when the sweat evaporates.
- D. Vasoconstriction reduces heat loss from the skin.
Question 4
A student writes "blood vessels move closer to the skin when you are hot". What is the correct idea?
- A. The skin moves towards the vessels
- B. Vessels shrink and move deeper
- C. Blood stops flowing to the skin
- D. Vessels near the skin widen, so more blood flows near the surface
Question 5
When does this happen: shivering?
- A. response when too hot
- B. response when too cold
Question 6
Temperature control: which statement is NOT true?
- A. The hypothalamus contains the thermoregulatory centre.
- B. Normal human body temperature is about 37 °C.
- C. Vasoconstriction reduces heat loss from the skin.
- D. Blood vessels move closer to the skin when you are hot.
Question 7
Which part of the brain monitors blood temperature?
- A. the thermoregulatory centre (hypothalamus)
- B. the cerebellum
- C. the spinal cord
- D. the retina
Question 8
When does this happen: vasoconstriction: blood vessels near the skin narrow?
- A. response when too hot
- B. response when too cold
Question 9
Temperature control: which statement is NOT true?
- A. Vasoconstriction reduces heat loss from the skin.
- B. Sweating cools the body when the sweat evaporates.
- C. The hypothalamus contains the thermoregulatory centre.
- D. Shivering cools the body down.
Question 10
A student writes "blood vessels move closer to the skin when you are hot". What is the correct idea?
- A. The skin moves towards the vessels
- B. Vessels shrink and move deeper
- C. Vessels near the skin widen, so more blood flows near the surface
- D. Blood stops flowing to the skin
Question 11
When does this happen: hairs lie flat?
- A. response when too hot
- B. response when too cold
Question 12
Temperature control: which statement is NOT true?
- A. Normal human body temperature is about 37 °C.
- B. Vasoconstriction reduces heat loss from the skin.
- C. Sweating cools the body when the sweat evaporates.
- D. Shivering cools the body down.
Question 13
Which part of the brain monitors blood temperature?
- A. the spinal cord
- B. the retina
- C. the thermoregulatory centre (hypothalamus)
- D. the cerebellum
Question 14
When does this happen: sweating?
- A. response when too hot
- B. response when too cold
Question 15
Temperature control: which statement is NOT true?
- A. Vasoconstriction reduces heat loss from the skin.
- B. Sweating cools the body when the sweat evaporates.
- C. Normal human body temperature is about 37 °C.
- D. Shivering cools the body down.
Question 16
Why does shivering warm you up?
- A. It widens blood vessels
- B. Rapid muscle contractions increase respiration, which releases heat
- C. It shakes cold air away
- D. It makes sweat
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