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Chem 131 > Exam 5 > Flashcards

Exam 5 Flashcards

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1
Q

amino acids contain…

A

amines and carboxylic acids

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2
Q

naturally occuring AA?

A

all L-alpha-AA

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3
Q

acidic side chain contains

A

carboxylic acid

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4
Q

basic side chain contains

A

amine or C=N

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5
Q

Neutral, Polar side chains contain

A

alcohols, amides, SH

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6
Q

Neutral, Non polar side chains contain

A

alkyl groups

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7
Q

pH=pI

A

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

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8
Q

pH<pI

A

acidic
carboxylic acids + ammoniums

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9
Q

pH>pI

A

basic
carboxylates and amines

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10
Q

salt bridge + H-bonding

A

acidic/basic side chains

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11
Q

H-bonding if alcohol/amides

A

polar side chains

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12
Q

hydrophobic interaction

A

non polar side chains

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13
Q

Complementary DNA bases

A

A—T
G—C

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14
Q

Complementary RNA bases

A

A—U
G—C

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15
Q

Transcription

A

How RNA is made from DNA

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16
Q

Translation

A

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

Chem 131 (10 decks)

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