GCSE Biology – Thermoregulation and osmoregulation

Last updated: 26/05/2020

Edexcel GCSE Science – Biology higher Animal coordination, control and homeostasis GCSE Biology – Thermoregulation and osmoregulation

Learning Objectives

-I can define thermoregulation
-I can explain how thermoregulation works
-I can define osmoregulation
-I can explain how osmoregulation works

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Question 1 of 25

1. Question
What is thermoregulation?
- The process of controlling your internal temperature
- The process of controlling the amount of water in bodily fluids
- The process of controlling your blood glucose levels
- The process of controlling your external temperature
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Question 2 of 25

2. Question
What type of system is thermoregulation?
- Negative
- Positive
- Neutral
- No feedback
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Question 3 of 25

3. Question
Where is the thermoregulatory centre in the body?
- The brain
- The lungs
- The heart
- The stomach
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Question 4 of 25

4. Question
Where is the thermoregulatory centre?
- Hypothalamus
- Pituitary gland
- Large intestine
- Small intestine
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Question 5 of 25

5. Question
What type of receptors does the hypothalamus contain?
- Sensitive to blood temperature
- Sensitive to oxygen levels
- Sensitive to carbon dioxide levels
- Sensitive to blood glucose levels
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Question 6 of 25

6. Question
What type of receptors does the hypothalamus contain?
- Sensitive to temperature
- Sensitive to respiration
- Sensitive to pain
- Sensitive to blood glucose levels
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Question 7 of 25

7. Question
Where does the hypothalamus send nerve impulses to?
- The skin
- The brain
- The heart
- The stomach
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Question 8 of 25

8. Question
How many layers does the skin contain?
- 3
- 2
- 1
- 4
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Question 9 of 25

9. Question
What type of tissue is at the top of the skin?
- Epidermis
- Dermis
- Fatty tissue
- Spongy mesophyll
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Question 10 of 25

10. Question
What type of tissue is in the middle of the skin?
- Dermis
- Epidermis
- Fatty tissue
- Spongy mesophyll
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Question 11 of 25

11. Question
What type of tissue is at the bottom of the skin?
- Fatty tissue
- Epidermis
- Dermis
- Spongy mesophyll
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Question 12 of 25

12. Question
What happens during thermoregulation when we get too hot?
- Sweat glands release more sweat onto the surface of the epidermis
- Sweat glands release more sweat onto the surface of the dermis
- Skeletal muscles contract
- Nerve impulses are sent to the hair erector muscles
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Question 13 of 25

13. Question
What is another name for increased sweating?
- Vasodilation
- Vasoconstriction
- Thermoregulation
- Osmoregulation
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Question 14 of 25

14. Question
What happens to sweat?
- Evaporates
- Boils
- Distils
- Nothing
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Question 15 of 25

15. Question
Describe the energy transfer taking place when we sweat.
- Heat energy transferred from the skin and to the environment
- Heat energy transferred from the environment and to the skin
- Chemical energy transferred from the environment and to the skin
- Chemical energy transferred from the skin and to the environment
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Question 16 of 25

16. Question
What happens during thermoregulation when we get too cold?
- Skeletal muscles contract and we shiver
- Sweat glands release more sweat onto the surface of the epidermis
- Sweat glands release more sweat onto the surface of the dermis
- Skeletal muscles expand and we shiver
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Question 17 of 25

17. Question
What do skeletal muscles need to contract?
- Energy
- Water
- Carbon dioxide
- Protein
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Question 18 of 25

18. Question
What process must take place in order for skeletal muscles to contract?
- Respiration
- Evaporation
- Filtration
- Digestion
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Question 19 of 25

19. Question
What happens during thermoregulation when we get too cold?
- Nerve impulses are sent to the hair erector muscles in the dermis, which then contract raising skin hairs
- Nerve impulses are sent to the hair erector muscles in the fatty tissue , which then contract raising skin hairs
- Sweat glands release more sweat onto the surface of the epidermis
- Sweat glands release more sweat onto the surface of the dermis
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Question 20 of 25

20. Question
How does raised skin hairs help to keep you warm?
- Traps a layer of insulating air next to the skin
- Evaporates water off of the body
- Transmits energy to the environment
- Transmits water to the environment
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Question 21 of 25

21. Question
What is another name for shivering?
- Vasoconstriction
- Vasodilation
- Thermoregulation
- Osmoregulation
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Question 22 of 25

22. Question
What is osmoregulation?
- The process of controlling the amount of water in bodily fluids
- The process of controlling your internal temperature
- The process of controlling your blood glucose levels
- The process of controlling your external temperature
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Question 23 of 25

23. Question
What does the kidney do during osmoregulation?
- Release a small volume of concentrated urine
- Release a large volume of concentrated urine
- Release a large volume of dilute urine
- Release a small volume of dilute urine
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Question 24 of 25

24. Question
What happens during osmoregulation when the kidney releases a small volume of concentrated urine?
- We get thirsty, increasing out water levels
- We get hungry, decreasing our water levels
- We get hungry, increasing our water levels
- We get thirsty, decreasing our water levels
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Question 25 of 25

25. Question
How is water lost from our bodies?
- Sweating
- Eating
- Digestion
- All of these answers
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