Macromolecules Flashcards
What is the monomer for a carbohydrate?
monosaccharide
What is the polymer for a carbohydrate?
polysaccharide
What is the purpose of a carbohydrate?
provide and store energy and promote digestion
What type of linkage do carbohydrates use?
glycosodic linkage
What are the four major classes of macromolecules?
Carbohydrates, lipids, proteins, nucelic acids
What does dehydration do?
Removes water to build a bond. Requires energy.
What does hydrolysis do?
Adds water to break a bond. Creates energy.
What type of bond do lipids use?
Ester bonds
What is a saturated fatty acid?
Contains no carbon-carbon double bonds. Exists as solid at room temperature.
What is an unsaturated fatty acid?
Contains a carbon-carbon double bond. Liquid at room temperature. Has a kink. Can be monounsaturated or polyunsaturated.
What is a polyunsaturated fatty acid?
Contains more than one carbon-carbon double bond.
What is a monounsaturated fatty acid?
Contains one carbon-carbon double bond.
What is a proteins monomer?
amino acid
What is a proteins polymer?
polypeptide
What bond do proteins use?
covalent peptide bond
What is primary protein structure?
Unique sequence of amino acids. First structure. If something goes wrong here, the rest of the structures will be wrong.
What is secondary protein structure?
Local folding of polypeptides. A helix and B-pleated sheets.
What is denaturation?
Changes in protein structure that leads to changes in function. pH, temperature, and exposure to chemicals can denature proteins.
What is quarternary protein structure?
In some proteins, multiple polypeptide units bind to form. Use weak bonding to maintain structure.
What is tertiary protein structure?
Takes on 3D shape from weak bonding. All to do with R GROUPS.
R Groups
holds key to chemical nature of a protein. Can be polar, non polar, etc.
Polar R group
Rings; hydrophilic; generally outside of the protein.
Non polar R group
Straight branched; hydrophobic. Hydrophobic will cluster in the interior of the protein.
What do proteins do?
make enzymes, transport, regulation