Search over 10,000 free study notes

Protein.Catalyst.Not used up in the process.An enzyme is a protein which acts as a catalyst to speeds up a reaction but is not used up in the process.

Deoxygenated blood from the body is delivered to the right atrium by the vena cava. The right atrium contracts and blood flows into the right atrium. The right ventricle then contracts and blood is pumpe...

The loop of Henle is designed so that the water moves out of the thinner walled descending limb by osmosis and then ions such as Na+ and Cl- are actively transported out of the ascending limb. This active...

the biological molecule formed from the condensation reaction between 2 monosaccharidesmaltose is 2 glucose monomers, lactose is glucose + galactose and sucrose is glucose + fructosea glycosidic bond

The kidney is the body's filtration system, and works by separating the fluid and cells that make up blood, then selectively reabsorbing what is still useful, so that we don't lose anything valuable but c...