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Introduction to Biochemistry > Amino acid classification > Flashcards

Amino acid classification Flashcards

1
Q

How are the amino acids classified ?

A

They are classified according to their :

  1. Chemical structure : the structure of the side chain ( R-group).
  2. Polarity : polarity of the side chain.
  3. Nutrition : if the amino acid can be synthesized or not in the body.
  4. Metabolism : Based on the fate of the amino acid in the body.
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2
Q

What are the simple amino acids ?

A

Glycine and Alanine

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3
Q

What are the amino acids the branched chain amino acids ?

A

Valine and Leucine and Isoleucine

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4
Q

What are the amino acids containing OH group ?

A

Serine and Threonine

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5
Q

What are the amino acids containing Sulphur atom ?

A

Cysteine and Methionine

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6
Q

What are the amino acids containing an acidic group ?

A

Aspartic acid and Glutamic acid

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7
Q

What are the amino acid containing amide group ?

A

Asparagine and Glutamine

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8
Q

What are the amino acids containing basic group ?

A

Lysine and Arginine

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9
Q

What is the amino acid that contains Guanido group ?

A

Arginine

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10
Q

What are the aromatic amino acids ?

A

Phenylalanine and Tyrosine ( Tyrosine has hydroxyl radical )

Tryptophan ( indole ring )

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11
Q

What are the heterocyclic amino acids ?

A

Histidine ( Basic amino acid and has imidazole ring )

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12
Q

What are the imino amino acid ?

A

Proline

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13
Q

What are the polar charged charged amino acid ?

A

Negatively charged : aspartic and glutamic (acidic amino acides which are mono amino di-carboxylic acids )
Positively charged : lysine and arginine and histidine (basic amino acides which are di-amino mono carboxylic )

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14
Q

What are the polar uncharged amino acid ?

A

Hydroxl chain : serine , threonine and tyrosine.
Sulfhydral side chain ; Cysteine
Amide side chain : asparagine and glutamine

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15
Q

What are the non polar amino acids ?

A
  1. Simple and branched AA
  2. Phenyl alanine and tryptophan
  3. Methionine
  4. Proline
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16
Q

What are the semi essential amino acids ?

A

Arginine and Histidine

17
Q

What are the essential amino acids ?

A
  1. 3 branched AA
  2. Threonine
  3. Methionine
  4. lysine
  5. Phenyl alanine and Tryptophan

Introduction to Biochemistry (7 decks)

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