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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.

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Tentang dek ini

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.

Kartu dalam dek ini

  1. Kartu 1

    Pertanyaan

    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?

    Jawaban

    Histidine — side chain: Cα–CH₂–imidazolyl.

  2. Kartu 2

    Pertanyaan

    Valine → three-letter code

    Jawaban

    Val

  3. Kartu 3

    Pertanyaan

    Serine → one-letter code

    Jawaban

    S

  4. Kartu 4

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  5. Kartu 5

    Pertanyaan

    Phenylalanine → three-letter code

    Jawaban

    Phe

  6. Kartu 6

    Pertanyaan

    Lysine → one-letter code

    Jawaban

    K

  7. Kartu 7

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

    Alanine — side chain: Cα–CH₃.

  8. Kartu 8

    Pertanyaan

    Isoleucine → three-letter code

    Jawaban

    Ile

  9. Kartu 9

    Pertanyaan

    Cysteine → one-letter code

    Jawaban

    C

  10. Kartu 10

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  11. Kartu 11

    Pertanyaan

    Tyrosine → three-letter code

    Jawaban

    Tyr

  12. Kartu 12

    Pertanyaan

    Arginine → one-letter code

    Jawaban

    R

  13. Kartu 13

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  14. Kartu 14

    Pertanyaan

    Leucine → three-letter code

    Jawaban

    Leu

  15. Kartu 15

    Pertanyaan

    Threonine → one-letter code

    Jawaban

    T

  16. Kartu 16

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  17. Kartu 17

    Pertanyaan

    Tryptophan → three-letter code

    Jawaban

    Trp

  18. Kartu 18

    Pertanyaan

    Methionine → one-letter code

    Jawaban

    M

  19. Kartu 19

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

    Glycine — side chain: Cα–H.

  20. Kartu 20

    Pertanyaan

    Glutamate → three-letter code

    Jawaban

    Glu

  21. Kartu 21

    Pertanyaan

    Val → amino-acid name

    Jawaban

    Valine

  22. Kartu 22

    Pertanyaan

    S → amino-acid name

    Jawaban

    Serine

  23. Kartu 23

    Pertanyaan

    Asparagine → three-letter code

    Jawaban

    Asn

  24. Kartu 24

    Pertanyaan

    Phenylalanine → one-letter code

    Jawaban

    F

  25. Kartu 25

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  26. Kartu 26

    Pertanyaan

    Alanine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₃.

  27. Kartu 27

    Pertanyaan

    Ile → amino-acid name

    Jawaban

    Isoleucine

  28. Kartu 28

    Pertanyaan

    C → amino-acid name

    Jawaban

    Cysteine

  29. Kartu 29

    Pertanyaan

    Aspartate → three-letter code

    Jawaban

    Asp

  30. Kartu 30

    Pertanyaan

    Tyrosine → one-letter code

    Jawaban

    Y

  31. Kartu 31

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  32. Kartu 32

    Pertanyaan

    Proline → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–(CH₂)₃–Nα.

  33. Kartu 33

    Pertanyaan

    Leu → amino-acid name

    Jawaban

    Leucine

  34. Kartu 34

    Pertanyaan

    T → amino-acid name

    Jawaban

    Threonine

  35. Kartu 35

    Pertanyaan

    Glutamine → three-letter code

    Jawaban

    Gln

  36. Kartu 36

    Pertanyaan

    Tryptophan → one-letter code

    Jawaban

    W

  37. Kartu 37

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  38. Kartu 38

    Pertanyaan

    Glycine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–H.

  39. Kartu 39

    Pertanyaan

    Glu → amino-acid name

    Jawaban

    Glutamate

  40. Kartu 40

    Pertanyaan

    Histidine → draw or recall the side chain

    Jawaban

    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. Kartu 41

    Pertanyaan

    K → amino-acid name

    Jawaban

    Lysine

  42. Kartu 42

    Pertanyaan

    Alanine → three-letter code

    Jawaban

    Ala

  43. Kartu 43

    Pertanyaan

    Isoleucine → one-letter code

    Jawaban

    I

  44. Kartu 44

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

    Cysteine — side chain: Cα–CH₂–SH.

  45. Kartu 45

    Pertanyaan

    Aspartate → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₂–C(=O)–OH.

  46. Kartu 46

    Pertanyaan

    Tyr → amino-acid name

    Jawaban

    Tyrosine

  47. Kartu 47

    Pertanyaan

    R → amino-acid name

    Jawaban

    Arginine

  48. Kartu 48

    Pertanyaan

    Proline → three-letter code

    Jawaban

    Pro

  49. Kartu 49

    Pertanyaan

    Leucine → one-letter code

    Jawaban

    L

  50. Kartu 50

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  51. Kartu 51

    Pertanyaan

    Glutamine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₂–CH₂–C(=O)–NH₂.

  52. Kartu 52

    Pertanyaan

    Trp → amino-acid name

    Jawaban

    Tryptophan

  53. Kartu 53

    Pertanyaan

    M → amino-acid name

    Jawaban

    Methionine

  54. Kartu 54

    Pertanyaan

    Glycine → three-letter code

    Jawaban

    Gly

  55. Kartu 55

    Pertanyaan

    Glutamate → one-letter code

    Jawaban

    E

  56. Kartu 56

    Pertanyaan

    Histidine → three-letter code

    Jawaban

    His

  57. Kartu 57

    Pertanyaan

    Valine → one-letter code

    Jawaban

    V

  58. Kartu 58

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

    Serine — side chain: Cα–CH₂–OH.

  59. Kartu 59

    Pertanyaan

    Asparagine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₂–C(=O)–NH₂.

  60. Kartu 60

    Pertanyaan

    Phe → amino-acid name

    Jawaban

    Phenylalanine

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

    120 kartu

    Amino Acid Flashcards: 20 Side-Chain Structures & Codes

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  61. Kartu 61

    Pertanyaan

    I → amino-acid name

    Jawaban

    Isoleucine

  62. Kartu 62

    Pertanyaan

    Cysteine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₂–SH.

  63. Kartu 63

    Pertanyaan

    Aspartate → one-letter code

    Jawaban

    D

  64. Kartu 64

    Pertanyaan

    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?

    Jawaban

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

  65. Kartu 65

    Pertanyaan

    Arginine → three-letter code

    Jawaban

    Arg

  66. Kartu 66

    Pertanyaan

    Pro → amino-acid name

    Jawaban

    Proline

  67. Kartu 67

    Pertanyaan

    L → amino-acid name

    Jawaban

    Leucine

  68. Kartu 68

    Pertanyaan

    Threonine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH(OH)–CH₃.

  69. Kartu 69

    Pertanyaan

    Glutamine → one-letter code

    Jawaban

    Q

  70. Kartu 70

    Pertanyaan

    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?

    Jawaban

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

  71. Kartu 71

    Pertanyaan

    Methionine → three-letter code

    Jawaban

    Met

  72. Kartu 72

    Pertanyaan

    Gly → amino-acid name

    Jawaban

    Glycine

  73. Kartu 73

    Pertanyaan

    E → amino-acid name

    Jawaban

    Glutamate

  74. Kartu 74

    Pertanyaan

    His → amino-acid name

    Jawaban

    Histidine

  75. Kartu 75

    Pertanyaan

    V → amino-acid name

    Jawaban

    Valine

  76. Kartu 76

    Pertanyaan

    Serine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₂–OH.

  77. Kartu 77

    Pertanyaan

    Asparagine → one-letter code

    Jawaban

    N

  78. Kartu 78

    Pertanyaan

    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?

    Jawaban

    Phenylalanine — side chain: Cα–CH₂–C₆H₅.

  79. Kartu 79

    Pertanyaan

    Lysine → three-letter code

    Jawaban

    Lys

  80. Kartu 80

    Pertanyaan

    Ala → amino-acid name

    Jawaban

    Alanine

  81. Kartu 81

    Pertanyaan

    Proline → one-letter code

    Jawaban

    P

  82. Kartu 82

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  83. Kartu 83

    Pertanyaan

    Threonine → three-letter code

    Jawaban

    Thr

  84. Kartu 84

    Pertanyaan

    Gln → amino-acid name

    Jawaban

    Glutamine

  85. Kartu 85

    Pertanyaan

    W → amino-acid name

    Jawaban

    Tryptophan

  86. Kartu 86

    Pertanyaan

    Methionine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₂–CH₂–S–CH₃.

  87. Kartu 87

    Pertanyaan

    Glycine → one-letter code

    Jawaban

    G

  88. Kartu 88

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

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

  89. Kartu 89

    Pertanyaan

    Histidine → one-letter code

    Jawaban

    H

  90. Kartu 90

    Pertanyaan

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

    Which amino acid has this side chain?

    Jawaban

    Valine — side chain: Cα–CH(CH₃)₂.

  91. Kartu 91

    Pertanyaan

    Serine → three-letter code

    Jawaban

    Ser

  92. Kartu 92

    Pertanyaan

    Asn → amino-acid name

    Jawaban

    Asparagine

  93. Kartu 93

    Pertanyaan

    F → amino-acid name

    Jawaban

    Phenylalanine

  94. Kartu 94

    Pertanyaan

    Lysine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–(CH₂)₄–NH₂.

  95. Kartu 95

    Pertanyaan

    Alanine → one-letter code

    Jawaban

    A

  96. Kartu 96

    Pertanyaan

    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?

    Jawaban

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

  97. Kartu 97

    Pertanyaan

    Cysteine → three-letter code

    Jawaban

    Cys

  98. Kartu 98

    Pertanyaan

    Asp → amino-acid name

    Jawaban

    Aspartate

  99. Kartu 99

    Pertanyaan

    Y → amino-acid name

    Jawaban

    Tyrosine

  100. Kartu 100

    Pertanyaan

    Arginine → draw or recall the side chain

    Jawaban

    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. Kartu 101

    Pertanyaan

    Ser → amino-acid name

    Jawaban

    Serine

  102. Kartu 102

    Pertanyaan

    N → amino-acid name

    Jawaban

    Asparagine

  103. Kartu 103

    Pertanyaan

    Phenylalanine → draw or recall the side chain

    Jawaban

    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. Kartu 104

    Pertanyaan

    Lys → amino-acid name

    Jawaban

    Lysine

  105. Kartu 105

    Pertanyaan

    A → amino-acid name

    Jawaban

    Alanine

  106. Kartu 106

    Pertanyaan

    Isoleucine → draw or recall the side chain

    Jawaban

    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. Kartu 107

    Pertanyaan

    Cys → amino-acid name

    Jawaban

    Cysteine

  108. Kartu 108

    Pertanyaan

    D → amino-acid name

    Jawaban

    Aspartate

  109. Kartu 109

    Pertanyaan

    Tyrosine → draw or recall the side chain

    Jawaban

    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. Kartu 110

    Pertanyaan

    Arg → amino-acid name

    Jawaban

    Arginine

  111. Kartu 111

    Pertanyaan

    P → amino-acid name

    Jawaban

    Proline

  112. Kartu 112

    Pertanyaan

    Leucine → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₂–CH(CH₃)₂.

  113. Kartu 113

    Pertanyaan

    Thr → amino-acid name

    Jawaban

    Threonine

  114. Kartu 114

    Pertanyaan

    Q → amino-acid name

    Jawaban

    Glutamine

  115. Kartu 115

    Pertanyaan

    Tryptophan → draw or recall the side chain

    Jawaban

    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. Kartu 116

    Pertanyaan

    Met → amino-acid name

    Jawaban

    Methionine

  117. Kartu 117

    Pertanyaan

    G → amino-acid name

    Jawaban

    Glycine

  118. Kartu 118

    Pertanyaan

    Glutamate → draw or recall the side chain

    Jawaban

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

    Side chain: Cα–CH₂–CH₂–C(=O)–OH.

  119. Kartu 119

    Pertanyaan

    H → amino-acid name

    Jawaban

    Histidine

  120. Kartu 120

    Pertanyaan

    Valine → draw or recall the side chain

    Jawaban

    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 kartu

Amino Acid Flashcards: 20 Side-Chain Structures & Codes

Pelajari dek ini gratis

Nibomo akan terbuka agar Anda bisa mulai belajar.