Lesson 4.5.2.4
4.5.2.4 Control of body temperature (biology only) Quiz: AQA Biology, Unit 5
20 questions
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Lesson 4.5.2.4, Control of body temperature (biology only): 20 multiple choice questions for the AQA GCSE Biology (8461), Unit 5: Homeostasis and response, written with Revision Ninja.
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The 20 questions
-
Which part of the brain monitors and controls body temperature?
- Thermoregulatory centre
- Medulla
- Cerebellum
- Cerebral cortex
-
How do skin temperature receptors send information to the thermoregulatory centre?
- Via blood flow
- Via nervous impulses
- Via hormones
- Via sweat glands
-
What happens to blood vessels near the skin when body temperature is too high?
- They dilate
- They close completely
- They disappear
- They constrict
-
What is the term for blood vessels widening?
- Osmosis
- Vasodilation
- Vasoconstriction
- Phagocytosis
-
What do sweat glands produce when body temperature rises too high?
- Sebum
- Adrenaline
- Sweat
- Hormones
-
What happens to skin blood vessels during vasoconstriction?
- They multiply
- They narrow
- They widen
- They burst
-
Which response occurs automatically when body temperature drops too low?
- Shivering
- Sweating
- Panting
- Vasodilation
-
When body temperature is too low, what happens to sweating?
- It stops
- It increases
- It becomes salty
- It doubles
-
How does muscle contraction during shivering help raise body temperature?
- Absorbs heat energy
- Increases blood flow
- Stops sweating
- Releases heat energy
-
Where is heat energy transferred during vasodilation and sweating?
- Blood to muscles
- Skin to environment
- Brain to skin
- Environment to skin
-
Which of these is a skin-based function in temperature control?
- Glycogen storage
- Insulin release
- Urea filtration
- Sweat production
-
How does vasodilation help to lower body temperature?
- Causes muscle shivering
- Decreases blood flow
- Increases blood flow
- Stops sweat production
-
How does vasoconstriction help to preserve body heat?
- Increases sweat production
- Increases blood flow
- Reduces blood flow
- Causes muscle relaxation
-
Which process during muscle contraction releases heat during shivering?
- Digestion
- Photosynthesis
- Transpiration
- Respiration
-
What do receptors in the thermoregulatory centre directly monitor?
- Air temperature
- Blood temperature
- Skin temperature
- Blood pressure
-
A person runs in hot weather. Which responses help them lose heat?
- Shivering only
- Vasoconstriction and shivering
- Sweating and vasodilation
- Stopping sweat production
-
Which vascular response occurs when body temperature drops too low?
- Sweating
- Vasodilation
- Vasoconstriction
- Shivering
-
Which response helps a hypothermic person by actively generating heat?
- Increased sweating
- Muscle shivering
- Skin vasodilation
- Vessel dilation
-
What is the main purpose of skin vasoconstriction in cold conditions?
- Increase sweating
- Increase heat loss
- Lower blood pressure
- Reduce heat loss
-
How does sweat transfer energy away from the body during cooling?
- Condensation
- Evaporation
- Radiation
- Respiration
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