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A simple way of thinking about why enzymes catalyse only specific reactions is to think of the enzyme and the substrate (the compound the enzyme is acting upon) as a lock and key system. Enzymes have a pa...

There are 4 main differences, the first being that DNA is in a double helix structure much like two pieces of string wrapped together. RNA, on the other hand, is single-stranded. The second difference is ...

Start by stating the function of the lungs: gas exchangenext go though the adaptations, with the number of available marks guiding the number of adaptations ~ 1 per mark
Fick's law of diffusion state...

A genetic mutation, defined as being a change in the DNA base sequence would lead to a change in the primary structure of a protein (a change in the amino acid sequence). This would lead to a change in th...

High Hydrostatic Pressure at the Arteriole end of the capillary.
This pushes water and other small molecules out of the capillary into the extra cellular space, whilst proteins stay in the capillary ...