BPS 2110 - Module 2 Exam Questions And Correct Answers

BPS 2110 - Module 2 Exam Questions And Correct Answers



Modular Biological Molecules (4) - ANSWER - Protein

- Nucleic acids

- Polysaccharides

- Lipids



a. Protein - ANSWER Linear chain of amino acids

- Amide bonds



b. Nucleic acids - ANSWER Linear chain of nucleotides

- Phosphate esters



c. Polysaccharides - ANSWER Linear chains of sugars, some are branched

- Acetals



d. Lipids - ANSWER Linear chains of acetate or propionate

- Reduced aldol (1,3-dicarbonyl)



Modular construction - ANSWER Fast assembly of complex structures using simple
molecule components



Modular construction requirements- ANSWER 1 enzyme system for each biomolecule
type and function



Types of enzymes used for modular construction (2) - ANSWER - Ribosomes (Make
proteins)

, - Proteasome (Disassemble protein)



Drugs Common & Uncommon Targets - ANSWER Proteins & Nuclease



How do drugs produce an effect - ANSWER Binding to a biological molecule



How do drugs interact with biological molecules - ANSWER 3-D way



Non-covalent interactions ANSWER Shape and pattern of electron density determine
binding



Covalent bond interactions ANSWER React chemically with biological molecules



How are amino acids similar ANSWER - Same backbone

- Same stereochemistry



How do amino acids differ ANSWER Side (R) chains



Peptides ANSWER Linear chains of amino acids



Peptide bond ANSWER The bond between 2 amino acids



Formation of peptide bonds ANSWER 1) Loss of the OH-leaving group

2) N2H of another molecule binds

3) N2H becomes NH

Nucleophilic substitution of carboxylates - ANSWER 1) Addition of a nucleophile

2) Elimination of a leaving group