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The enthalpy of atomisation is the enthalpy change when 1 mole of gaseous atoms is formed from its constituent element, in standard conditions. 

Meiosis is the process of cell division that produces two identical diploid cells, and consists of four stages.

The first stage is called prophase, where the chromosomes condense and cross over to ...

There are many enzymes which are crucial for replication. The first is helicase which unwinds the double helix at the replication fork. DNA gyrase then reduces the strain...

There are 3 main types of aeolian transport - suspension, saltation and surface creep. Suspension involves sand particles being carried within the air. Saltation is the bouncing of grains along the surfac...

When an action potential from a pre-synaptic neuron approaches a synapse, the change in membrane potential causes voltage-gated calcium ion channels to open across the pre-synaptic bulb. Due to the high d...