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Temperature: An increase in temperature increases diffusion rate. Concentration gradient (difference in concentration): A greater concentration gradient increases diffusion rate. Surface area of a membrane: ...

If osmosis is the movement of water across a partially permeable membrane, then chemiosmosis is the same, but for chemicals. Let's consider the mitochondria, which has a double membrane envelope, and let's t...

Protein digestion begins in the stomach by the secretion of gastric juice, a combination of Hydrochloric acid and the enzyme Pepsin. Food then passes into the duodenum, or small intestine, where pepsin works...

A common misunderstanding is to think that evolution results from a species changing to be better adapted to its environment. Evolution is actually the result of environmental pressures selecting different c...

Light dependent reactions occurs in the thylakoid membrane whereas light independent occurs in the stroma of the chloroplastLight dependent reactions produces the substrates for making ATP whereas ATP is ult...