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211148
Photosynthesis
Description
NCEA Level 2 Biology (Cells) Mind Map on Photosynthesis, created by elliemay96 on 16/09/2013.
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biology
cells
biology
cells
ncea level 2
Mind Map by
elliemay96
, updated more than 1 year ago
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Created by
elliemay96
about 11 years ago
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Resource summary
Photosynthesis
Importance
Converts solar energy into chemical energy
Produces food(glucose) for plants
Other info
Occurs in chloroplasts
Only in daylight hours
Two chemical pathways
Requires energy from sun
First chemical pathway: Light-dependent reaction
Occurs in the grana
1) Chlorophyll embedded in the thylakoid membranes have their electron excited by the sun striking them
2)These high energy elcetrons are passed along a series of carrier molecules and their energy is used to make ATP from ADP
3) Water splits into H and O. O is released as a gas and the H is picked up by NADP and taken the next chemical reaction
Second chemical pathway: Light-independent reaction
Occurs in the stroma and also known as the Calvin cycle
1) CO2 and H enter a complex biochemical cycle. As they are passed around, extensive rearrangement occurs and glucose is formed.
2) Carbon dioxide and hydrogen are continuously fed into the cycle.
3) ATP (produced in the previous reaction) is used to run the cycle
Factors that affect the rate of the process are: temperature, light intensity and carbon dioxide concentration
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