This is a draft cheat sheet. It is a work in progress and is not finished yet.
Biosyntheisis
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Biosynthesis building up small orgainc molecules into complex molecules
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Organic molecules Sugars come from ? inorganic molecules, carbon dioxide and water
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Introduction
Photosynthesis is where energy from light is used to make glucose |
From H2O and CO2 |
Occurs in a series of reactions |
Energy is stored in glucose till plant releases it by respiration |
Animals obtain glucose by eating plants |
Respiration
Release of energy stored in glucose = Respiration
Cant use glucose for energy
Energy released from glucose used to make ATP |
Biosynhetic Pathway
Metabolic Pathway |
sequence of linked chemical reactions |
Intermediate |
product of reactions in metabolic pathway |
Photosynthesis Metabolic Pathway
2 Stages |
Light Dependent Reaction-makes ATP |
Calvin Cycle - consumes ATP to make glucose |
Optimising Photosynthesis
Light |
High internsity at a certain wavelength |
Temperature |
temperature effects enzymes and stomata |
Carbon Dioxide |
to much or to little affects photosyntheisis |
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Autotrophs
organisms that produce their own carbon materials |
Uses of Energy
Muscle Contraction |
Body Temperature |
DNA replication |
Chloroplast
Location of Photosynthesis
Photosynthetic Pigments absorb light
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ATP
ATP is the immediate energy source in a cell |
Cells can't get energy from glucose |
ATP diffuses into part of the cell that needs energy |
Adenine + ribose sugar+ 3 phosphate groups = ATP |
ATP broken into ADP and Pi for energy |
Phosphate bond broken = Energy Released |
Hydrolysis Reaction |
ATP Energy Source Benefits
No energy wasted as heat |
Easily broken down |
Easily transported round the cell |
Stays in the cell |
Condensation Reaction
ATP comes from a condensation reaction between ADP and inorganic phosphate.
CO Enzyme NADP
Co-Enzyme aids enzymes |
Coenzyme in Photosynthesis NADP |
Transfers Hydrogen from one molecule to another |
Reduction and Oxidation (OILRIG) |
Gives Hydrogen to/Take Hydrogen from |
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