Sun Devil Central vs Amino Acids 3D

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Learn the 20 standard amino acids the way you actually need to know them: their 3D shapes, their structural formulas, their chemical properties, and the real history behind their discovery — not just a list of names to memorize. FLASHCARDS Flip through all 20 amino acids with a rotatable, interactive 3D ball-and-stick model on the front. Drag to rotate, and toggle between the zwitterion (physiological pH) and neutral forms to see exactly how the charge changes. Flip the card for full details: category, charge, side chain formula, molecular weight, isoelectric point, essential/nonessential status, and a 2D structural formula with the side chain highlighted. Filter by structural category (nonpolar, aromatic, polar uncharged, acidic, basic) to focus your review. QUIZ — 7 MODES - Identify the Model: name the amino acid from its rotating 3D structure - Identify the Skeleton: name it from its 2D structural formula instead - Codes: match names to their one- and three-letter codes - Properties: charge, category, essential status - Structure: side chains, molecular weight, isoelectric point - History: who discovered it, when, and from what source - Mixed Review: a random mix across every category Every quiz round covers all 20 amino acids exactly once, in a random order, with immediate correct/incorrect feedback. DRAW & LABEL Two hands-on modes: tap the blanks on an amino acid's atom-and-backbone diagram and choose the correct labels, or build a full skeletal structure yourself, atom by atom, and check your work against the real molecule. PROGRESS Track quizzes taken, your average score, and which amino acids you've reviewed, so you know exactly where to focus next. REAL DISCOVERY HISTORY Every amino acid's discovery story — who found it, the year, the source material it was isolated from, and a citation to the original publication — has been individually fact-checked against primary sources, not just copied from a summary. Browse the full 129-year timeline (1806–1935) in one sortable list, or read the story on the back of each flashcard. Built for biochemistry, organic chemistry, MCAT, nursing, and molecular biology students who want to understand the amino acids beyond recognizing their names. No account, no ads, no tracking. Your quiz progress is stored only on your device.