Aerobic respiration and anaerobic respiration

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Aerobic respiration
Aerobic respiration
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What controls the chemical reactions that take place inside the cell?
Enzymes
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1-Which substances are used in respiration? 2- why do cells need to respire?
1-Glucose (a sugar) and Oxygen 2- Release energy
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True or false? respiration takes place all the time in animals and plants?
True, it takes place continuously
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Word equation for aerobic respiration?
Glucose + oxygen -> carbon dioxide + water (+energy)
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Where in the cell do most of the reactions of aerobic respiration take place?
Most take place inside the mitochondria
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4 Things that energy from respiration is used for?
1- To build larger molecules from smaller ones 2-In animals, enable muscles to contract 3- In mammals/birds, maintain a steady body temp, in cooler condt 4-Plants,build up sugars, nitrates and any other nutrients into amino acids, built into proteins
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What 2 changes take place during exercise?
1- Heart rate increases 2-The rate and depth of breathing increases
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These changes increases the blood flow to the....... and so increase the supply of sugar and ....... and increases the rate of ...... of carbon dioxide?
These changes increase the blood flow to the muscles and so increase the supply of sugar and oxygen and increase the rate of removal of carbon dioxide
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What is glycogen and how is it used?
Muscles store glucose as glycogen, which can then be converted back to glucose for use during exercise
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Anaerobic respiration
Anaerobic respiration
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When does anaerobic respiration take place?
During exercise, if insufficient oxygen is reaching the muscles, they use anaerobic respiration to obtain evergy
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What is Anaerobic respiration? What are the products of anaerobic respiration?
Anaerobic respiration is the incomplete breakdown of glucose and produces lactic acid
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As the breakdown of glucose is incomplete, much..... energy is realeased than during aerobic respiration, Anaerobic repsiration results in an ... .... that has to be repaid in order to ... lactic acid to carbon dioxide and .......?
As the breakdown of glucose is incomplete, much less energy is releases than during aerobic respiration. anaerobic respiration results in an oxygen debt that has to be repaid in order to oxidise lactic acid to carbon dioxide and water.
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When do muscles become fatigues? what does this mean
When they are subjected to long periods of vigorous exercise: this means that they stop contracting effciently.
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What is a cause of muscles becoming fatigued? How does blood flow help to reduce fatigue?
One cause of muscle fatigue is the build-up of lactic acid in the muscles. Blood flowing through the muscles removes the lactic acid
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Other cards in this set

Card 2

Front

What controls the chemical reactions that take place inside the cell?

Back

Enzymes

Card 3

Front

1-Which substances are used in respiration? 2- why do cells need to respire?

Back

Preview of the front of card 3

Card 4

Front

True or false? respiration takes place all the time in animals and plants?

Back

Preview of the front of card 4

Card 5

Front

Word equation for aerobic respiration?

Back

Preview of the front of card 5
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