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Amino Acid Flashcards: 20 Side-Chain Structures & Codes

Learn the 20 standard amino acids with 120 flashcards for side-chain recognition and drawing, plus one- and three-letter code recall in both directions.

Автор Flashcards Open Source App

За това тесте

These amino acid flashcards train the 20 standard amino acids as six separate recall tasks. You’ll practice side-chain structure → amino-acid name, amino-acid name → side-chain drawing, amino-acid name → three-letter code, three-letter code → amino-acid name, amino-acid name → one-letter code, and one-letter code → amino-acid name. Each target has its own card, so remembering a code never hides a missed structure.

The structure cards show only the variable side chain. A small Cα attachment marker fixes the convention without turning the shared amino-acid backbone into another recognition task; proline also shows the side chain’s connection to the backbone nitrogen. The diagrams use one neutral connectivity convention. They do not test pH-dependent charge states or stereochemistry.

The fixed sequence introduces each structure before its drawing prompt and each code before its reverse lookup for the same amino acid. It interleaves all six directions, keeps every same-amino-acid variant at least three unrelated cards apart, and separates visually or code-confusable concepts. The review scheduler handles longer-term spacing after installation.

The deck deliberately leaves out side-chain class labels because classification schemes vary. It also excludes pKa values, charge-state tables, isoelectric points, codons, nutrition categories, full-backbone recognition, nonstandard amino acids and ambiguous sequence symbols, peptide-bond and protein-folding trivia, and exam, clinical, disease, supplement, dietary, or pronunciation material. Those mappings either vary by convention or belong outside this focused side-chain-and-code recall set.

IUPAC-IUB nomenclature recommendations, NCBI’s overview of amino acids and their side chains, and the NCBI amino-acid code table were used only to verify common-knowledge facts. All prompts, answers, selection, order, molecular diagrams, metadata, and cover composition were created independently. No source or competitor prose, images, screenshots, trade dress, or logos were copied. Facts are not claimed as proprietary. The original wording, organization, metadata, diagrams, and cover are dedicated under CC0 1.0 to the extent applicable rights exist.

Карти в това тесте

  1. Карта 1

    Въпрос

    Side-chain diagram showing CH₂ joined to a five-membered ring containing NH and N from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Histidine — side chain: Cα–CH₂–imidazolyl.

  2. Карта 2

    Въпрос

    Valine → three-letter code

    Отговор

    Val

  3. Карта 3

    Въпрос

    Serine → one-letter code

    Отговор

    S

  4. Карта 4

    Въпрос

    Side-chain diagram showing CH₂–C(=O)–NH₂ from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Asparagine — side chain: Cα–CH₂–C(=O)–NH₂.

  5. Карта 5

    Въпрос

    Phenylalanine → three-letter code

    Отговор

    Phe

  6. Карта 6

    Въпрос

    Lysine → one-letter code

    Отговор

    K

  7. Карта 7

    Въпрос

    Side-chain diagram showing one CH₃ group bonded to the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Alanine — side chain: Cα–CH₃.

  8. Карта 8

    Въпрос

    Isoleucine → three-letter code

    Отговор

    Ile

  9. Карта 9

    Въпрос

    Cysteine → one-letter code

    Отговор

    C

  10. Карта 10

    Въпрос

    Side-chain diagram showing CH₂–C(=O)–OH from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Aspartate — side chain: Cα–CH₂–C(=O)–OH.

  11. Карта 11

    Въпрос

    Tyrosine → three-letter code

    Отговор

    Tyr

  12. Карта 12

    Въпрос

    Arginine → one-letter code

    Отговор

    R

  13. Карта 13

    Въпрос

    Side-chain diagram showing three CH₂ groups linking the Cα and Nα attachment markers.

    Which amino acid has this side chain?

    Отговор

    Proline — side chain: Cα–(CH₂)₃–Nα.

  14. Карта 14

    Въпрос

    Leucine → three-letter code

    Отговор

    Leu

  15. Карта 15

    Въпрос

    Threonine → one-letter code

    Отговор

    T

  16. Карта 16

    Въпрос

    Side-chain diagram showing CH₂–CH₂–C(=O)–NH₂ from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Glutamine — side chain: Cα–CH₂–CH₂–C(=O)–NH₂.

  17. Карта 17

    Въпрос

    Tryptophan → three-letter code

    Отговор

    Trp

  18. Карта 18

    Въпрос

    Methionine → one-letter code

    Отговор

    M

  19. Карта 19

    Въпрос

    Side-chain diagram showing a hydrogen bonded to the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Glycine — side chain: Cα–H.

  20. Карта 20

    Въпрос

    Glutamate → three-letter code

    Отговор

    Glu

  21. Карта 21

    Въпрос

    Val → amino-acid name

    Отговор

    Valine

  22. Карта 22

    Въпрос

    S → amino-acid name

    Отговор

    Serine

  23. Карта 23

    Въпрос

    Asparagine → three-letter code

    Отговор

    Asn

  24. Карта 24

    Въпрос

    Phenylalanine → one-letter code

    Отговор

    F

  25. Карта 25

    Въпрос

    Side-chain diagram showing (CH₂)₄–NH₂ from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Lysine — side chain: Cα–(CH₂)₄–NH₂.

  26. Карта 26

    Въпрос

    Alanine → draw or recall the side chain

    Отговор

    Side-chain diagram showing one CH₃ group bonded to the Cα attachment marker.

    Side chain: Cα–CH₃.

  27. Карта 27

    Въпрос

    Ile → amino-acid name

    Отговор

    Isoleucine

  28. Карта 28

    Въпрос

    C → amino-acid name

    Отговор

    Cysteine

  29. Карта 29

    Въпрос

    Aspartate → three-letter code

    Отговор

    Asp

  30. Карта 30

    Въпрос

    Tyrosine → one-letter code

    Отговор

    Y

  31. Карта 31

    Въпрос

    Side-chain diagram showing (CH₂)₃–NH–C(=NH)–NH₂ from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Arginine — side chain: Cα–(CH₂)₃–NH–C(=NH)–NH₂.

  32. Карта 32

    Въпрос

    Proline → draw or recall the side chain

    Отговор

    Side-chain diagram showing three CH₂ groups linking the Cα and Nα attachment markers.

    Side chain: Cα–(CH₂)₃–Nα.

  33. Карта 33

    Въпрос

    Leu → amino-acid name

    Отговор

    Leucine

  34. Карта 34

    Въпрос

    T → amino-acid name

    Отговор

    Threonine

  35. Карта 35

    Въпрос

    Glutamine → three-letter code

    Отговор

    Gln

  36. Карта 36

    Въпрос

    Tryptophan → one-letter code

    Отговор

    W

  37. Карта 37

    Въпрос

    Side-chain diagram showing CH₂–CH₂–S–CH₃ from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Methionine — side chain: Cα–CH₂–CH₂–S–CH₃.

  38. Карта 38

    Въпрос

    Glycine → draw or recall the side chain

    Отговор

    Side-chain diagram showing a hydrogen bonded to the Cα attachment marker.

    Side chain: Cα–H.

  39. Карта 39

    Въпрос

    Glu → amino-acid name

    Отговор

    Glutamate

  40. Карта 40

    Въпрос

    Histidine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂ joined to a five-membered ring containing NH and N from the Cα attachment marker.

    Side chain: Cα–CH₂–imidazolyl.

  41. Карта 41

    Въпрос

    K → amino-acid name

    Отговор

    Lysine

  42. Карта 42

    Въпрос

    Alanine → three-letter code

    Отговор

    Ala

  43. Карта 43

    Въпрос

    Isoleucine → one-letter code

    Отговор

    I

  44. Карта 44

    Въпрос

    Side-chain diagram showing CH₂–SH from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Cysteine — side chain: Cα–CH₂–SH.

  45. Карта 45

    Въпрос

    Aspartate → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂–C(=O)–OH from the Cα attachment marker.

    Side chain: Cα–CH₂–C(=O)–OH.

  46. Карта 46

    Въпрос

    Tyr → amino-acid name

    Отговор

    Tyrosine

  47. Карта 47

    Въпрос

    R → amino-acid name

    Отговор

    Arginine

  48. Карта 48

    Въпрос

    Proline → three-letter code

    Отговор

    Pro

  49. Карта 49

    Въпрос

    Leucine → one-letter code

    Отговор

    L

  50. Карта 50

    Въпрос

    Side-chain diagram showing CH bonded to OH and CH₃ from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Threonine — side chain: Cα–CH(OH)–CH₃.

  51. Карта 51

    Въпрос

    Glutamine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂–CH₂–C(=O)–NH₂ from the Cα attachment marker.

    Side chain: Cα–CH₂–CH₂–C(=O)–NH₂.

  52. Карта 52

    Въпрос

    Trp → amino-acid name

    Отговор

    Tryptophan

  53. Карта 53

    Въпрос

    M → amino-acid name

    Отговор

    Methionine

  54. Карта 54

    Въпрос

    Glycine → three-letter code

    Отговор

    Gly

  55. Карта 55

    Въпрос

    Glutamate → one-letter code

    Отговор

    E

  56. Карта 56

    Въпрос

    Histidine → three-letter code

    Отговор

    His

  57. Карта 57

    Въпрос

    Valine → one-letter code

    Отговор

    V

  58. Карта 58

    Въпрос

    Side-chain diagram showing CH₂–OH from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Serine — side chain: Cα–CH₂–OH.

  59. Карта 59

    Въпрос

    Asparagine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂–C(=O)–NH₂ from the Cα attachment marker.

    Side chain: Cα–CH₂–C(=O)–NH₂.

  60. Карта 60

    Въпрос

    Phe → amino-acid name

    Отговор

    Phenylalanine

    Abstract molecular study scene with colorful ball-and-stick side-chain forms arranged around an open center.

    120 карти

    Amino Acid Flashcards: 20 Side-Chain Structures & Codes

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  61. Карта 61

    Въпрос

    I → amino-acid name

    Отговор

    Isoleucine

  62. Карта 62

    Въпрос

    Cysteine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂–SH from the Cα attachment marker.

    Side chain: Cα–CH₂–SH.

  63. Карта 63

    Въпрос

    Aspartate → one-letter code

    Отговор

    D

  64. Карта 64

    Въпрос

    Side-chain diagram showing CH₂ joined to a six-membered ring with an opposite OH group from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Tyrosine — side chain: Cα–CH₂–C₆H₄–OH (para).

  65. Карта 65

    Въпрос

    Arginine → three-letter code

    Отговор

    Arg

  66. Карта 66

    Въпрос

    Pro → amino-acid name

    Отговор

    Proline

  67. Карта 67

    Въпрос

    L → amino-acid name

    Отговор

    Leucine

  68. Карта 68

    Въпрос

    Threonine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH bonded to OH and CH₃ from the Cα attachment marker.

    Side chain: Cα–CH(OH)–CH₃.

  69. Карта 69

    Въпрос

    Glutamine → one-letter code

    Отговор

    Q

  70. Карта 70

    Въпрос

    Side-chain diagram showing the Cα attachment marker joined through CH₂ to position 3 of fused five- and six-membered rings containing NH.

    Which amino acid has this side chain?

    Отговор

    Tryptophan — side chain: Cα–CH₂–indol-3-yl.

  71. Карта 71

    Въпрос

    Methionine → three-letter code

    Отговор

    Met

  72. Карта 72

    Въпрос

    Gly → amino-acid name

    Отговор

    Glycine

  73. Карта 73

    Въпрос

    E → amino-acid name

    Отговор

    Glutamate

  74. Карта 74

    Въпрос

    His → amino-acid name

    Отговор

    Histidine

  75. Карта 75

    Въпрос

    V → amino-acid name

    Отговор

    Valine

  76. Карта 76

    Въпрос

    Serine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂–OH from the Cα attachment marker.

    Side chain: Cα–CH₂–OH.

  77. Карта 77

    Въпрос

    Asparagine → one-letter code

    Отговор

    N

  78. Карта 78

    Въпрос

    Side-chain diagram showing CH₂ joined to a six-membered ring with alternating double bonds from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Phenylalanine — side chain: Cα–CH₂–C₆H₅.

  79. Карта 79

    Въпрос

    Lysine → three-letter code

    Отговор

    Lys

  80. Карта 80

    Въпрос

    Ala → amino-acid name

    Отговор

    Alanine

  81. Карта 81

    Въпрос

    Proline → one-letter code

    Отговор

    P

  82. Карта 82

    Въпрос

    Side-chain diagram showing CH₂–CH with two terminal CH₃ branches from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Leucine — side chain: Cα–CH₂–CH(CH₃)₂.

  83. Карта 83

    Въпрос

    Threonine → three-letter code

    Отговор

    Thr

  84. Карта 84

    Въпрос

    Gln → amino-acid name

    Отговор

    Glutamine

  85. Карта 85

    Въпрос

    W → amino-acid name

    Отговор

    Tryptophan

  86. Карта 86

    Въпрос

    Methionine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂–CH₂–S–CH₃ from the Cα attachment marker.

    Side chain: Cα–CH₂–CH₂–S–CH₃.

  87. Карта 87

    Въпрос

    Glycine → one-letter code

    Отговор

    G

  88. Карта 88

    Въпрос

    Side-chain diagram showing CH₂–CH₂–C(=O)–OH from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Glutamate — side chain: Cα–CH₂–CH₂–C(=O)–OH.

  89. Карта 89

    Въпрос

    Histidine → one-letter code

    Отговор

    H

  90. Карта 90

    Въпрос

    Side-chain diagram showing CH bonded to two CH₃ branches from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Valine — side chain: Cα–CH(CH₃)₂.

  91. Карта 91

    Въпрос

    Serine → three-letter code

    Отговор

    Ser

  92. Карта 92

    Въпрос

    Asn → amino-acid name

    Отговор

    Asparagine

  93. Карта 93

    Въпрос

    F → amino-acid name

    Отговор

    Phenylalanine

  94. Карта 94

    Въпрос

    Lysine → draw or recall the side chain

    Отговор

    Side-chain diagram showing (CH₂)₄–NH₂ from the Cα attachment marker.

    Side chain: Cα–(CH₂)₄–NH₂.

  95. Карта 95

    Въпрос

    Alanine → one-letter code

    Отговор

    A

  96. Карта 96

    Въпрос

    Side-chain diagram showing CH with one CH₃ branch and one CH₂–CH₃ branch from the Cα attachment marker.

    Which amino acid has this side chain?

    Отговор

    Isoleucine — side chain: Cα–CH(CH₃)–CH₂–CH₃.

  97. Карта 97

    Въпрос

    Cysteine → three-letter code

    Отговор

    Cys

  98. Карта 98

    Въпрос

    Asp → amino-acid name

    Отговор

    Aspartate

  99. Карта 99

    Въпрос

    Y → amino-acid name

    Отговор

    Tyrosine

  100. Карта 100

    Въпрос

    Arginine → draw or recall the side chain

    Отговор

    Side-chain diagram showing (CH₂)₃–NH–C(=NH)–NH₂ from the Cα attachment marker.

    Side chain: Cα–(CH₂)₃–NH–C(=NH)–NH₂.

  101. Карта 101

    Въпрос

    Ser → amino-acid name

    Отговор

    Serine

  102. Карта 102

    Въпрос

    N → amino-acid name

    Отговор

    Asparagine

  103. Карта 103

    Въпрос

    Phenylalanine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂ joined to a six-membered ring with alternating double bonds from the Cα attachment marker.

    Side chain: Cα–CH₂–C₆H₅.

  104. Карта 104

    Въпрос

    Lys → amino-acid name

    Отговор

    Lysine

  105. Карта 105

    Въпрос

    A → amino-acid name

    Отговор

    Alanine

  106. Карта 106

    Въпрос

    Isoleucine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH with one CH₃ branch and one CH₂–CH₃ branch from the Cα attachment marker.

    Side chain: Cα–CH(CH₃)–CH₂–CH₃.

  107. Карта 107

    Въпрос

    Cys → amino-acid name

    Отговор

    Cysteine

  108. Карта 108

    Въпрос

    D → amino-acid name

    Отговор

    Aspartate

  109. Карта 109

    Въпрос

    Tyrosine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂ joined to a six-membered ring with an opposite OH group from the Cα attachment marker.

    Side chain: Cα–CH₂–C₆H₄–OH (para).

  110. Карта 110

    Въпрос

    Arg → amino-acid name

    Отговор

    Arginine

  111. Карта 111

    Въпрос

    P → amino-acid name

    Отговор

    Proline

  112. Карта 112

    Въпрос

    Leucine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂–CH with two terminal CH₃ branches from the Cα attachment marker.

    Side chain: Cα–CH₂–CH(CH₃)₂.

  113. Карта 113

    Въпрос

    Thr → amino-acid name

    Отговор

    Threonine

  114. Карта 114

    Въпрос

    Q → amino-acid name

    Отговор

    Glutamine

  115. Карта 115

    Въпрос

    Tryptophan → draw or recall the side chain

    Отговор

    Side-chain diagram showing the Cα attachment marker joined through CH₂ to position 3 of fused five- and six-membered rings containing NH.

    Side chain: Cα–CH₂–indol-3-yl.

  116. Карта 116

    Въпрос

    Met → amino-acid name

    Отговор

    Methionine

  117. Карта 117

    Въпрос

    G → amino-acid name

    Отговор

    Glycine

  118. Карта 118

    Въпрос

    Glutamate → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH₂–CH₂–C(=O)–OH from the Cα attachment marker.

    Side chain: Cα–CH₂–CH₂–C(=O)–OH.

  119. Карта 119

    Въпрос

    H → amino-acid name

    Отговор

    Histidine

  120. Карта 120

    Въпрос

    Valine → draw or recall the side chain

    Отговор

    Side-chain diagram showing CH bonded to two CH₃ branches from the Cα attachment marker.

    Side chain: Cα–CH(CH₃)₂.

Abstract molecular study scene with colorful ball-and-stick side-chain forms arranged around an open center.

120 карти

Amino Acid Flashcards: 20 Side-Chain Structures & Codes

Учете с това тесте безплатно

Nibomo се отваря, за да започнете да учите.