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Inhibitors INHIBIT the ACTIVITY OF ENZYMES. This means fewer enzymes are able to break up substrate, and so whatever reaction is taking place, slows down. Inhibitors can be found for example, in poison or in...

There are 4 cardiac (from the Greek 'καρδία', meaning 'heart') valves. Physiology (Function) - The pulmonary and aortic valves prevent the backflow of blood from the pulmonary artery and aorta into the ventr...

A mnemonic can be used for such questions which ask for 4/5 points. With intensive rearing for example: My Whale Does Yoga Sometimes. M - movement, W - warmth, D - diet, Y - young, S - selective breeding. Fr...

Looking at a diagram of muscle cells you can identify: Z lines, H zone, I band, and A band. The Z lines move closer together, H zone becomes more narrow, as does the I band, and the A band remains the same w...

The Krebs cycle produces ATP by substrate level phosphorylation. The cycle is completed twice per glucose molecule. It also produces NADH which goes on to donate an electron to the electron transport chain o...