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Water is made up of one oxygen and two hydrogen atoms. Oxygen is more electronegative than hydrogen, meaning the electrons in the hydrogen-oxygen bond are slightly more attracted to the oxygen. This makes...

All three of these are carbohydrate polymers, formed from glucose monomers.

Glycogen and starch are both polymers of alpha glucose. These long chains of alpha glucose molecules, joined end-to-end, ...

Myleination of the nerve axon by Schwann cells allows for fast saltatory conduciton, as the Schwann cells provide electrical insulation. Gaps between Schwann cells are known as Nodes of Ranvier, whereby e...

Plants, like us, need food and water to survive. We have a heart, arteries and veins that help us circulate our blood around. But plants don't have that, and need ways of transporting water and food, whic...

Key Points: 1) Active transport requires energy in the form of ATP whereas facilitated diffusion does not require energy; it is a passive process 2) Active transport can move molec...