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biology 0610printed 142 · PDF 142
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Aitchison College Academic Resources.
12. Respiration
Core
State the uses of energy in living organisms,
including: muscle contraction, protein synthesis,
cell division, active transport, growth, the
passage of nerve impulses and the maintenance
of a constant body temperature
Investigate and describe the effect of
temperature on respiration in yeast
Supplement
Describe aerobic respiration as the chemical
reactions in cells that use oxygen to break down
nutrient molecules to release energy
2 State the word equation for aerobic respiration as:
glucose + oxygen —+ carbon dioxide + water
3 State the balanced chemical equation for aerobic
respiration as:
C,H,,0, + 60, —» 6CO, + 6H,O
Core
Describe anaerobic respiration as the chemical
reactions in cells that break down nutrient
molecules to release energy without using
oxygen
State that anaerobic respiration releases much
less energy per glucose molecule than aerobic
oe
State the word equation for anaerobic respiration
in yeast as:
glucose —» alcohol + carbon dioxide
State the word equation for anaerobic respiration
in muscles during vigorous exercise as:
glucose —* lactic acid
5 State the balanced chemical equation for
anaerobic respiration in yeast as:
C,H,,0, —* 2C,H,OH +2C0,
6 State that lactic acid builds up in muscles and
blood during vigorous exercise causing an oxygen
debt
continued
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