STEM Sheets

Amino Acid Flashcards

Customizable flashcards for learning to identify the 20 standard amino acids. Study online or download.

Amino Acid Flashcards example

The amino acid flashcards contain the name, structure, 1 letter abbreviation, and 3 letter abbreviation of the 20 standard amino acids. The flashcards can be studied online or quickly customized and printed using the flash card maker. The standard amino acids on the cards include the 9 essential amino acids Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Threonine, Tryptophan, and Valine. The cards also include 11 nonessential amino acids. You can find a complete list of the amino acids on these cards at the bottom of this page. When studying these cards from the website you have the option to change the card color and the facts on each card. If you are printing the cards you can quickly customize the card content, border color, border style, and card size. After customizing the cards, you can download them as a customized PDF for printing. The PDF can be optimized for printing on US Letter or A4 paper sizes.


  • Print or study on your device
  • 20 amino acids
  • Optional names, abbreviations, and structures
  • Optimized for US Letter or A4 paper
  • 4 card sizes and colors

More Resources

The Amino Acid Flashcards PDFs by STEM Sheets are licensed under CC BY-NC-ND 4.0