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When an individual's blood glucose concentration rises above the normal range (approximately 70-100mmol/100cm^3), alpha cells in the Islets of Langerhans in the pancreas detect this change and release glu...
The first reason is that the genetic code is redundant. This means that even though different codons have different matching t-RNAs and therefore usually different amino acids, some codons are matched wit...
Enzymes are biological catalysts that work by increasing the speed of a reaction, without being altered or used up in the reaction. Each enzyme has an active site specific to a particular substrate and th...
Receptors in the skin detect changes in the environment, so called stimuli. These could include a change in temperature or sensation, such as increased pressure, being touched somewhere or experiencing pa...
It is the process which uses Carbon dioxide, Water and sunlight to produce Sugar (glucose) and oxygen.
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