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As temperature increases, the molecules involved in the reaction gain kinetic energy, increasing the chances of collision between the substrate molecules and the active sites of the enzymes, a step that i...

• Antigens - cell recognition/cell signalling - receptor or binding site for hormones - cell adhesion - attach to water molecules to stabilise the cell membrane - receptor/ binding site/ trigger
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Humans and other mammals keep their body temperature within just a few degrees of 37 degrees celcius. To achieve homeostasis of body temperature, three components are involved: a receptor, a co-ordinator,...

The beginning of both of these cell activities are very similar with the 23 pairs (46) chromosomes replicating resulting in 2 sister chromatids. At this point when the spindle fibres attach is when the pr...

The two models to explain the actions of enzymes with substrates are the Lock and Key model & Induced fit model. In lock and key the enzyme is the lock and the substrate is the key. As with a lock and...