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Electrons travel down the electron transport chain via electron carriers at successively lower energy levels. This causes protons to be pumped into the intermembranal space, establishing an electrochemica...
The arrival of an action potential at the presynaptic neurone causes voltage gated Ca2+ channels to open, allowing Ca2+ to diffuse into the synaptic knob. The increased intracellular Ca2+ concentration in...
The initial ‘unzipping’ stage is carried out by DNA helicase, to create a fork of DNA with exposed base pairs. DNA helicase works by breaking the hydrogen bonds between b...
A good answer would start with a definition of a synapse ('the junction between two neurones') and then be formatted as bullet points or numbers for clarity and backed up with a diagram.Action pot...
Firstly, a description of water potential would be a good place to start. An example definition of this could be: the pressure created by water molecules. The greater the number of water molecules present...
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