Exam 5

Question 1

amino acids contain…

Answer 1

amines and carboxylic acids

Question 2

naturally occuring AA?

Answer 2

all L-alpha-AA

Question 3

acidic side chain contains

Answer 3

carboxylic acid

Question 4

basic side chain contains

Answer 4

amine or C=N

Question 5

Neutral, Polar side chains contain

Answer 5

alcohols, amides, SH

Question 6

Neutral, Non polar side chains contain

Answer 6

alkyl groups

Question 7

pH=pI

Answer 7

zwitterion
charge on amine and carboxylic acid
no charge on side chains

Question 8

pH<pI

Answer 8

acidic
carboxylic acids + ammoniums

Question 9

pH>pI

Answer 9

basic
carboxylates and amines

Question 10

salt bridge + H-bonding

Answer 10

acidic/basic side chains

Question 11

H-bonding if alcohol/amides

Answer 11

polar side chains

Question 12

hydrophobic interaction

Answer 12

non polar side chains

Question 13

Complementary DNA bases

Answer 13

A—T
G—C

Question 14

Complementary RNA bases

Answer 14

A—U
G—C

Question 15

Transcription

Answer 15

How RNA is made from DNA

Question 16

Translation

Answer 16

Initiation: mRNA start codon tells tRNA to start bringing AA
Elongation: tRNA brings 1 AA at a time + peptidyl transference connects it to protein
Termination: mRNA stop codon tells tRNA to stop bringing AA and termination factor hydrolyzes protein off tRNA