B2 Respiration and Exercise

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Define Respiration
The process of breaking down glucose to release energy which occurs in every living cell
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Word Equation for Aaerobic respiration
Glucose + Oxygen = Carbon Dioxide + Water (+ Energy)
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What does the circulatory system carry?
Glucose, Oxygen, Carbon Dioxide
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What are the smallest blood vessels? Why are they important?
Capillaries, situated close by to every cell to supply them with glucose and oxygen and take away carbon dioxide
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What is the process called whereby glucose, oxygen and carbon dioxide move between the cells and capillaries?
Diffusion
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Define Diffusion
The gradual movement of particles from places of high concentration to low concentration
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When cells respire what do they use and what do they produce?
Use oxygen and glucose and produce carbon dioxide
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What affects the rate of diffusion?
The difference in concentration
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The faster the rate of diffusion the bigger...
the difference in concentration
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Why do muscles need energy from respiration?
To contract
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During exercise, where does the need for more energy come from?
Increased respiration
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During respiration, why do we need to breathe more?
To meet the oxygen demand of the cells and remove carbon dioxide more quickly
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During vigorous exercise, how does your body meet the demand for oxygen?
Anaerobic respiration
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Cardiac output is the...
Volume of the blood the heart pumps in one minute
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Cardiac output =
Heart rate x Stroke volume
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Why does the body begin to use anaerobic respiration? What is the equation for this?
Because there is not enough oxygen available. Glucose = Lactic Acid (+Energy)
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During anaerobic respiration, explain where lactic acid is found and what it causes
Builds up in the muscles causing pain and resulting in cramp.
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The amount of oxygen debt which needs to be paid back is called...
Excess post-exercise oxygen consumption (EPOC)
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How can you measure breathing and heart rate? How can this be made more reliable?
Counting breaths and taking the pulse. By doing this as a groups and plotting the average pulse rate.
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What is respiration?
The process by which energy breaks down glucose to release energy from food.
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Other cards in this set

Card 2

Front

Word Equation for Aaerobic respiration

Back

Glucose + Oxygen = Carbon Dioxide + Water (+ Energy)

Card 3

Front

What does the circulatory system carry?

Back

Preview of the front of card 3

Card 4

Front

What are the smallest blood vessels? Why are they important?

Back

Preview of the front of card 4

Card 5

Front

What is the process called whereby glucose, oxygen and carbon dioxide move between the cells and capillaries?

Back

Preview of the front of card 5
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