Biology B4 (Bioenergetics)

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what is the word equation for photosynthesis?
carbon dioxide+water > glucose+oxygen
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what is the word equation for photosynthesis? (balanced)
6CO2+6H2O > C6H12O6+6O2
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what is photosynthesis?
an endothermic reaction in which energy is transferred from the environment to the chloroplasts by light
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what factors increase the rate of photosynthesis?
temperature, light intensity, CO2 concentration, amount of chlorophyll
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what do plants use glucose for?
respiration, converts to insoluble starch fro storage, to produce fat or oil for storage, to produce cellulose, which strengthens the cell wall, to produce amino acids for protein synthesis
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what is cellular respiration?
an exothermic reaction which is continuously occurring in living cells
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what two ways can respiration in cells take place?
aerobic (using oxygen) and anaerobic (without oxygen)
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what 3 things do organisms need energy for?
chemical reactions to build larger molecules, movement, keeping warm
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what is the word equation for aerobic respiration?
glucose+oxygen > carbon dioxide + water
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what is the symbol equation for aerobic respiration?
C6H12O6+6O2 > 6CO2+6H2O
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what is the equation for anaerobic respiration?
glucose > lactic acid
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why is much less energy transferred in anaerobic respiration than aerobic?
the oxidation of glucose is incomplete
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what is the equation for anaerobic respiration in plants and yeast?
glucose > ethanol + carbon dioxide
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what is fermentation?
anaerobic respiration in yeast cells
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why does fermentation have economic importance?
as the ethanol produced is used to make alcoholic drinks and the CO2 produced is used to allow bread to rise
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define metabolism
the sum of all the reactions in a cell or the body
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what is the energy transferred by respiration in cells used for?
enzyme controlled processes of metabolism that synthesises new molecules
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what are examples of metabolism?
conversion of glucose to starch,glycogen and cellulose,formation of lipids from one glycerol and three fatty acids,glucose and nitrate ions to form amino acids to then make proteins,respiration,breakdown of excess proteins to form urea for excretion
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Card 2

Front

what is the word equation for photosynthesis? (balanced)

Back

6CO2+6H2O > C6H12O6+6O2

Card 3

Front

what is photosynthesis?

Back

Preview of the front of card 3

Card 4

Front

what factors increase the rate of photosynthesis?

Back

Preview of the front of card 4

Card 5

Front

what do plants use glucose for?

Back

Preview of the front of card 5
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