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Card 16

Front

What are proteins?

Back

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Card 17

Front

What are enzymes?

Back

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Card 18

Front

What factors affect enzymes?

Back

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Card 19

Front

What is a use of and enzyme?

Back

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Card 20

Front

What happens when we breathe in?

Back

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Card 21

Front

What are three reasons why a person cannot get enough oxygen into their blood stream?

Back

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Card 22

Front

What can the energy from aerobic respiration be used for?

Back

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Card 23

Front

Why does your heart rate increase when you exercise?

Back

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Card 24

Front

When does anaerobic repiration kick in?

Back

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Card 25

Front

Describe the chambers of the heart?

Back

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