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The purpose of the cell membrane is to make the cell into a closed compartment that is separate from the extracellular (outside) environment. It also works as a selective barrier that can allow the import...

In genetics, traits such as eye colour, sex and skin colour are carried in genes. Taking eye colour as an example, you will have a gene located somewhere within a chromosome encoding for eye colour. This ...

The lac operon has 3 components: the promoter (Binding site for RNA polymerase), the operator (binding site for the repressor) and the structural genes that code for the enzymes required for lactose metab...

Carbon dioxide only comprises 0.04 % of the earth’s atmosphere but it is a vital molecule in many processes and effects organisms directly with photosynthesis in plants, body functions causing global warm...

These 3 terms all describe the 3 possible concentrations of a solution in respect to the water potential surrounding a cell.Isotonic solution (Iso=same and tonic=strength...