Biology  5/e   Raven/Johnson
	Student   Online Learning Center

Use molecular models whenever possible, make sure they are large enough to be seen in the back row. Construct your own from ping pong balls and pencils, or styrofoam balls and straws. Pop-it beads are invaluable for describing polymerization of nearly all of the biomolecules, especially amino acids forming polypeptide chains. A coiled telephone cord effectively resembles an alpha helix.

Several supply companies offer colorforms-like biomolecule sets that are of sufficient size for small to medium size classes. One could construct similar sets from differently shaped or colored acetate pieces for use on an overhead in a very large class setting.

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