Friday, May 6, 2011


Today we focused on the third class of macromolecules: Proteins.

Brace yourself for this shocking discovery....proteins are formed when amino acids are joined together by peptide bonds and when water is removed! Are we noticing a trend yet....?

Proteins having many functions including as enzymes and transport molecules. We didn't spend a lot of time on enzymes because we learned about this in the fall. Click here to see a video of how enzymes work.

Proteins play in an important role in transport of molecules across a cell membrane. As you know, phospholipids have a hydrophylic head and hydrophobic tail. In order for the transport proteins to maintain their location in the bilayer they have to have polar and nonpolar components.

There is no homework for Monday other than to study for your test on Friday May 13th.

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