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Worth four marksEnzymes are biological catalysts which are used in reactions. A reaction will typically involve an enzyme and a substrate. Enzymes a...
At the optimum temperature for a given enzyme (specific to each enzyme dependent on the composition of the protein), catalytic activity is at a maximum and hence the reaction proceeds at maximum rate. Bot...
During photosynthesis, green plants use carbon dioxyde and water, and with light energy convert them to glucose and oxygen. There are two phases of this process, the light-dependent phase which needs the ...
Osmosis is the passive movement of water from an area of high water concentration (dilute solution) to an area of low water concentration (concentrated solution) across a partially permeable membrane down...
Water potential is a measure of the tendency of water to move from one place or compartment to another. Water moves based on the water potential, from a region of higher water potential to a region of low...
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