Biochem EX1 - Amino Acids Flashcards Preview

Fall 2015 > Biochem EX1 - Amino Acids > Flashcards

Flashcards in Biochem EX1 - Amino Acids Deck (10)
1

Which of the amino acids have aliphatic sidechains?

Alanine

Glycene

Valine

Leucine

Isoleucine

Proline

2

Which of the amino acids have aromatic sidechains?

Phenylalanine

Tyrosine

Tryptophan

3

Which of the amino acids are basic?

Lysine

Arganine

Hystidine

4

Which of the amino acids are acidic?

Glutamate

Aspartate

Asparagine

Glutamine

5

Defects in the metabolism of which amino acids lead to maple syrup urine disease?

Branched Chain Amino Acids

6

What disorders arise from defects in the metabolism of tyrposine? Pheynylalanine?

Tyrosine = Albinism, Mercaptoneuria

Phenylalaline = PKU

7

With respect to the amino acids we discussed, what is the cause of pellagra?

Lack of tryptophan in diet

8

Which amino acids have hydroxyl groups on the side chains?

Which amino acids contain sulfur?

When they are in proteins, what kinds of reactions do these amino acids occassionally undergo?

Hydroxyl (OH) = Serine, Threonine

Sulfur (S) = Cysteine, Methionine

Reactions of -OH groups are phosphorylated
Reactions of sulfhyroxyl groups oxidize to form dulsulfide linkages.

9

Which amino acids are referred to as essential?

Mnemonic: "Pvt. Tim Hall"

  • Phenylalanine
  • Valine
  • Threonine
  • Tryotophan
  • Isoleucine
  • Methionine
  • Hystidine
  • Alanine
  • Leucine
  • Lysine

10

Name at least 4 types of compounds for which amino acids are the precursors.

Protein

Glucose

Neurotransmitters

Hormones