Homeostasis

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How does the water content in the blood change?
Breathing out, sweating, urine.
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How is the water content in the blood controlled?
The kidneys control water lost in the urine.
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Which hormone is used by the kidneys to control the water lost in the urine?
ADH.
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Why is the water content in the blood controlled?
All body cells contain water in the cytoplasm, water makes up 70% of the body.
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How does the ion content in the blood change?
Sweat, urine.
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How is the ion content in the blood controlled?
Kidneys control ions in the urine.
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Why is the ion content in the blood controlled?
They are important for body processes.
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Give an example of a use of an ion?
Sodium ions are important for the nervous system.
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How does body temperature change?
Chemical reactions such as respiration release heat energy.
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How is body temperature controlled?
Sweat.
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Why is body temperature controlled?
So that enzymes can work at their best rate.
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How / when do blood sugar levels change?
They rise when we eat.
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How are blood sugar levels controlled?
Insulin reduces blood sugar levels.
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Why are blood sugar levels controlled?
So body cells get a constant glucose supply for respiration.
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What is meant by the term 'homeostasis'?
Bodily functions that aim to maintain a constant internal environment.
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Other cards in this set

Card 2

Front

How is the water content in the blood controlled?

Back

The kidneys control water lost in the urine.

Card 3

Front

Which hormone is used by the kidneys to control the water lost in the urine?

Back

Preview of the front of card 3

Card 4

Front

Why is the water content in the blood controlled?

Back

Preview of the front of card 4

Card 5

Front

How does the ion content in the blood change?

Back

Preview of the front of card 5
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