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B4 - The Processes of Life
Description
Biology (B4) Mind Map on B4 - The Processes of Life, created by Matthew Jones on 05/09/2013.
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b4
biology
biology
b4
Mind Map by
Matthew Jones
, updated more than 1 year ago
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Created by
Matthew Jones
almost 11 years ago
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Resource summary
B4 - The Processes of Life
Plants and Animals Cells
Simimlarities
Nucleus
Cytoplasm
Cell Membrane
Mitochondria
Differences
Rigid Cell Wall (Plants)
Vacuole (Plants)
Chloroplast (Plants)
Yeast are single celled microorganisms
Bacteria have a simple cell structure
They don't have a nucleus or any Mitochondria
Enzymes
ENZYMES are proteins that SPEED UP CHEMICAL REACTIONS
Chemical reactions usually involve things either being split apart or joined together
A substrate is a molecule that is changed in a reaction
Every enzyme molecule has an active site
Enzymes only speed up one reaction. This is because the substrate has to be the correct shape to fit into the active site
This is called the "Lock and Key" model as the substrate fits into the enzyme like a key fits into a lock
Enzymes need the right temperature and pH for the to work at their optimum
If the the temperature and pH are too high or low for the enzyme then it will denature and the substrate will not fit into it
Respiration
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