Energy from respiration
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| word equation for aerobic respiration? | glucose + oxygen ----> carbon dioxide + water (+energy)
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| respiration takes place? | mitochondria
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| number of mitochondria in a cell shows? | how active it is
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| respiration's function? | energy
warmth
build large molecules from smaller ones, e.g. protein synthesis
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| more oxygen needed during exercise because? | muscles contract more
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| changes in circulatory system during exercise? | heart rate increases
arteries supplying blood to muscles dilate (widen), allowing more O2 to get to muscles, and takes CO2 away.
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| 2 effects of exercise more regularly? | heart and lungs become larger
more efficient blood supply
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| if muscles work too hard they? | become fatigued and don't contract efficiently
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| anaerobic respiration occurs when? | not enough O2 is supplied to the muscles
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| aerobic respiration produces more energy than? | anaerobic respiration
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| O2 is still needed after exercise to? | break down lactic acid into water and CO2
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| muscle fatigue is caused by? | lactic acid build up
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| anaerobic respiration is less efficient because? | glucose is not completely broken down
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| word equation for anaerobic respiration? | glucose ----> lactic acid (+energy)
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Created by:
duane.humphreys
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