Comprehensive web-based toolkit for life science and related technologies (Mass-informatics, Chemoinformatics, Bioinformatics).
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BioChemCalc (BCC) is a scientific abacus for the pocket of every wet-lab biologist．
BioChemCalc（BCC） is a web-based tool for essential calculations and checks in everyday life science research． BCC Magazine shares practical uses of BCC and useful research insights to support open and independent science．
Can you recognize all 8 reactions of the pentose phosphate pathway? Test NADPH-producing steps, ribose-5-phosphate, and sugar rearrangements in this free chemical-structure quiz.
Can you identify every step of the urea (ornithine) cycle? Try a free interactive 5-step biochemistry quiz with chemical structures, enzyme names, and answers.
Why do enzymes accelerate chemical reactions? Explore electric charge, molecular orbitals, nucleophiles, free-energy barriers, and trypsin with interactive graphs and electron-pair diagrams.
Practice all 10 steps of glycolysis in an interactive pathway quiz. Follow glucose to pyruvate, compare chemical structures, identify intermediates, and learn each enzyme reaction.
Test all 8 reactions of the TCA (Krebs) cycle in a free interactive quiz. Follow citrate through the pathway, identify chemical structures, and see how oxaloacetate returns to citrate.
Can you identify all 4 steps of fatty acid beta-oxidation? Try this free interactive quiz with chemical structures, enzymes, and explained answers.
Test your knowledge of electron transport chain with free interactive questions, clear pathway steps, and explained answers.
Learn Fick’s law and the diffusion equation with interactive graphs, step-by-step arithmetic, and a remarkable 1950 Japanese mathematical biology textbook.
Do biologists really need inorganic chemistry? Explore magnesium, iron, zinc, crystal structure and metal chemistry through beautifully illustrated Japanese mineralogy books, including a 1954 color atlas.
Saturated vs. unsaturated fats explained with fatty-acid structures (16:0, 18:1, 18:2), food examples, an interactive explorer, 10-question quiz, and rare 1915 textbook photos.
Learn competitive, noncompetitive, uncompetitive and mixed enzyme inhibition. Compare Km and Vmax, explore live Michaelis–Menten graphs, and try 10 quiz questions.
Humans usually have 46 chromosomes in body cells and 23 in sperm or eggs. Learn chromosome number, meiosis, 46 vs. 48 history, and take a free quiz.