AP Biology Ch. 5 Packet : the Structure and Function of Macromolecules?

You'll find very few people will do your homework for you. It's a tad better if you at least have some sort of idea >.>

- you can recognize a monosaccharide by its multiple _ hydroxyl group_ groups and its one__Sugar__ group,
- whose location determines whether the sugar is an  __not sure but maybe "D"__ or a  ___Again sure but maybe"L sugar"__.
- In aqueous solutions, most monosaccharides form __Cyclic structures___.

Question 5.8:
a. why would a change in pH cause a protein to denature?
They disrupt the geometry of the molecule by reacting breaking the bonds

b. why would transfer to a nonpolar organic solvent (such as ether) cause denaturation?
When a protein folds in water it folds in a way that pushes the non-polar amino acid side chains into the inside of the protein so that they are away from water, and the side chains that are charged or polar are on the outside of the folded protein in contact with water.Since a solvent like ether is non-polar, a protein will have to denature (change its shape) so that the polar and charged amino acids would be buried away from the non-polar solvent, and the non-polar amino acids would be in contact with the non-polar solvent.

c. a denature protein may re-form to its functional shape when returned to its normal environment. what does that indicate about a protein's conformation?
Proteins fold in natural environment (water) in a way that they are stable, but a non-polar solvent provides a very different environment, so the protein has to unfold and adopt a very different shape.


Question 5.10
show the flow of genetic information in a cell:
_DNA__--->__RNA___---->__Protein___

Hope this helps !!