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Acetylcholine is a neurotransmitter used by cholergenic neurones.Neurotransmitters are chemicals used as a signalling molecule across a synapse.Acetylcholine will be released from the presynaptic bulb fro...

Ultrafiltration is the filtering of blood at the 69000 rmm molecular level. It occurs between the glomerulus and the bowman's capsule in the nephron of the kidney.There are three layers to the filtration;...

A low level of glucose in the blood will stimulate secretion of glucagon to increase the amount of glucose in the blood. Glucagon causes the liver to release stores of glycogen to be converted to glucose...

During the light dependent reaction, chlorophyll in the chloroplasts within a plant cell will absorb light energy, this will then excite electrons and an electron will be removed from the chlorophyll, onc...

DNA replication is semi-conservative, meaning existing strands are used as templates for new strands. The DNA is separated (unwinds) by the enzyme helicase. This enzyme breaks the H bonds between nucleoti...