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Blood enters the glomerulus from the afferent arteriole at a very high pressure, so the hydrostatic pressure forces the contents of the blood out of the blood vessels, into the Bowman's capsule. However, ...

Neurotransmitter is released from presynaptic neurone into the synaptic cleftDiffuses across the synapse Neurotransmitter binds onto postsynaptic membrane

(i) In the breakdown of glucose 4 ATP is produced, however 2 ATP are used leaving a net gain of 2 ATP.(ii) In the energy investment stage, 2 ATP molecules are used to phosphorylate glucose into fructose d...

Sympatric speciation occurs when populations (groups) of a species that share the same habitat become reproductively isolated from each other this can be caused by numerous phenomenon. The most common is ...

Diffusion and osmosis both involve the movement of particles from a high concentration to a low concentration, down a concentration gradient. The key difference between the two, is that osmosis concerns t...