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High temperature can cause the denaturation of proteins (enzymes), this is due to bonds in the proteins breaking. The shape of the active site no longer works, the lock and key mechanism is no longer achi...

Water moves via osmosis; this process is where water moves from an area of higher water potential to an area of low water potential with no energy required to be inputed into the system. 

Active Transport 

• Normally soil ion concentrations will be low, and high in the root cells. The ions have to move up a concentration gradient and therefore requires an energy-using process to...

Archaea 

Bacteria

Eukaryota

Firstly it is always good to relate such a concept with an example that is easily remembered and therefore easily applied. Alleles refer to alternate forms of the same gene, which code for a particular tr...