Respiration and Life

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Respiration if a feature of...
All living things
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What is the process that occurs inside cells to release the energy from food substances?
Respiration
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The energy released by respiration is needed for...
All life processes
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When oxygen is used in respiration it is called __________
Aerobic respiration
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When there is not enough oxygen available cells may switch to _______
Anaerobic respiration
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Which releases more energy?
Aerobic respiration
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_____ of the chemical reactions in respiration are controlled by enzymes
All
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What is breathing?
The process that gets oxygen into the body for respiration
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Glucose + oxygen -------------> carbon dioxide + water + ENERGY
Aerobic respiration
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Is respiration a single reaction?
No, the equation only summarises
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Is all of the energy from respiration useful?
No, some is lost as heat
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Measuring the amount of carbon dioxide or heat given off in a certain time or measuring thee oxygen used in a given time can find the __________
Rate of respiration
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Which is more efficient?
Aerobic respiration, more energy is released per molecule of glucose
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Glucose ----> lactic acid + ENERGY
Anaerobic respiration
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Can anaerobic respiration occur in human muscle cells during vigorous exercise when demand for oxygen is greater than the lungs can supply?
Yes
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What is the shortage of oxygen called in such situations?
Oxygen debt
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How does the body pay back the 'oxygen debt'?
By breathing faster and deeper for a while after exercise has finished
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What does the 'paid back' oxygen do?
Break down lactic acid into carbon dioxide and water
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What is yeast?
Microscopic fungi
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Which is anaerobic respiration in yeast?
Glucose -----> ethanol + carbon dioxide + ENERGY
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Ethanol is...
An alcohol
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In anaerobic respiration, what produces carbon dioxide?
Yeast
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Fermentation is....
Anaerobic respiration in yeast
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Other cards in this set

Card 2

Front

What is the process that occurs inside cells to release the energy from food substances?

Back

Respiration

Card 3

Front

The energy released by respiration is needed for...

Back

Preview of the front of card 3

Card 4

Front

When oxygen is used in respiration it is called __________

Back

Preview of the front of card 4

Card 5

Front

When there is not enough oxygen available cells may switch to _______

Back

Preview of the front of card 5
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