Identify the following molecules triglyceride amino

6.
7. If the nucleotide sequence of one strand of a DNA helix is GCCTAA, what would be the sequence on the
8. Explain how a primary sequence of a protein can change into secondary, tertiary, and quaternary
structures. What interaction(s) occur within a protein to allow it to change conformation?

Primary sequence - amino acid sequence
Secondary Structure: when the amino acids (aa) in a primary structure interact with each via
hydrogen bonds, the linear chain coils into an alpha helix or fold into a fan shape (beta pleated sheet)
Tertiary Structure: when continued interactions among R groups of aa and between R groups and
water cause the peptide to take on a 3D structure
Quaternary Structure: when multiple polypeptides interact
9. Match the following molecule with its class of macromolecules:
1. _carbs___ glycogen
2. __lipid__ cholesterol
3. _lipid___ beeswax
4. _nucleic acid___ RNA
5. _protein___ collagen
6. _nucleic acid___ a gene
7. protein____ an enzyme
8. _carbs___ cellulose
9. _lipids___ glycerol
10. Write a word equation for a general neutralization reaction. acid + base → salt and water
11. Give one example of how each type of reaction is used in a biological system: condensation (dehydration
synthesis) reaction - creating bonds for carbs, lipids and proteins - monomers combining to form more
complex macromolecules, hydrolysis reaction - breaking bonds to create smaller macromolecules for carbs,
lipids and proteins , enzyme-catalyzed reaction - provide alternative pathway of lower activation energy, thus
speeding up the rate of the reaction - lipase, carbohydrase, protease, pepsin