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BIOL 100 > Midterm > Flashcards

Midterm Flashcards

1
Q

Alanine

A
  • nonpolar/hydrophobic
  • aliphatic (simple)
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2
Q

Glycine

A
  • nonpolar/hydrophobic
  • aliphatic (simple)
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3
Q

Leucine

A
  • nonpolar/hydrophobic
  • aliphatic
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4
Q

Isoleucine

A
  • nonpolar/hydrophobic
  • aliphatic
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5
Q

Phenylalanine

A
  • nonpolar/hydrophilic
  • aromatic
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6
Q

Histidine

A
  • positively charged/hydrophilic
  • imidazole (positively charged aromatic ring)
  • can be positive or neutral at physiological pH
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7
Q

Cysteine

A
  • polar
  • sulfhydryl
  • can form disulfide bridges with itself
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8
Q

Proline

A
  • nonpolar/hydrophobic
  • aliphatic; self-bonding side chain
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9
Q

Methionine

A
  • nonpolar/hydrophobic
  • aliphatic
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10
Q

Glutamate

A
  • negative charge
  • carboxylic acid
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11
Q

Aspartate

A
  • negatively charged
  • carboxylic acid
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12
Q

Glutamine

A
  • polar
  • carboxyamide
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13
Q

Asparagine

A
  • polar
  • carboxyamide
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14
Q

Valine

A
  • nonpolar/hydrophobic
  • aliphatic
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15
Q

Tryptophan

A
  • nonpolar/hydrophobic
  • aromatic
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16
Q

Serine

A
  • polar
  • hydroxyl
17
Q

Threonine

A
  • polar
  • hydroxyl
18
Q

Tyrosine

A
  • polar
  • hydroxyl
19
Q

Lysine

A
  • positive/hydrophilic
  • amino
20
Q

Arginine

A
  • positive/hydrophilic
  • guanidinium
21
Q

Dissociation constant (Ka)

A
  • likelihood of an acid to dissociate in solution
  • weak acids less likely to dissociate; strong acids more likely to dissociate
  • lower Ka = weaker acid
  • higher Ka = stronger acid

BIOL 100 (3 decks)

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