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Insertion - one nucleotide is inserted into already existing sequence. As amino acids are coded by 3 consistent nucleotides insertion changes the reading frame. Therefore, it is likely to have severe consequ...

Osmosis is a special case of diffusion, which you can imagine as a spreading of particles across a room for example when you spray some deodorant - the strongest smell is closest to the area that has just be...

An action potential is the propagation of the reversal of charge across a membrane voltage gated Na+ ion channels sense a change in membrane potential causing them to open Na+ moves down its concentration gr...

Enzymes are proteinsEnzymes catalyse biological reactionsThe specific, 3-D shape of the tertiary structure affects that shape of the active siteThe active site needs to be a specific shape in order to be com...

Animals and plants are made up of tiny building blocks called cells. There are different types of cells that do different things, and cells that are similar to each other are grouped together in what's calle...