1. BIOCHEMISTRY STAAR Review
Dr. Bertolotti

2. TODAY’S GOAL
B.9.A compare the structures and functions of different types of biomolecules, including carbohydrates, lipids, proteins, and nucleic acids

3. overview Monomer: building blocks/ subunits
Polymer: monomers joined together through dehydration synthesis or polymerization
* Dehydration synthesis- a chemical reaction in which two or
more molecules bond by losing one or more water molecules.
* Hydrolysis- a chemical reaction in which the interaction of water
and a compound result in the breaking up of that compound.

4. MACROMOLECULES
A B C D

5. PROTEINS Monomer: * amino acids (20 different)
Function: controls the speed of chemical reactions (catalyst), transport substances in and out of cells, fight disease
Elements: C,H,O, N
Example: enzymes, hemoglobin, collagen held together by peptide bonds
Has a specific shape that can denature
(change shape) due to high temperatures
and change in pH
Different shapes = different jobs!
Synthesized at ribosomes

6. Check for understanding!
Read entire slide first, then
On a sheet of paper,
1. State 2 ways nucleic acids and proteins are
similar
2. State 2 ways nucleic acids and proteins are
different
Hit the “pause” button now
Once completed, click “play” for an analysis of the answers
Then answer some additional questions

7. MACROMOLECULES
A B C D