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Is this picture a colorful work of abstract art, or is it something else?

If you guessed red blood cells, you are right.

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Is it just a mass of tangled ribbons?

It actually represents the structure of a common chemical found inside living cells.

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What is this incredible object?

Would it surprise you to learn that it is a human cell?

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Biotechnology. Gene Therapy. Is it reality or fiction?

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Begin an interesting journey into the study of life with

CK-12 Biology FlexBook Eukaryotes: Protists and FungiPlant Evolution and ClassificationPlant BiologyIntroduction to AnimalsFrom Sponges to Invertebrate ChordatesFrom Fishes to BirdsMammals and Animal BehaviorIntroduction to the Human Body: Bones, Muscles, and SkinThe Nervous and Endocrine SystemsThe Circulatory, Respiratory, Digestive, and Excretory SystemsThe Immune System and DiseaseReproduction and Human Development

Learn: Learn:

What is Biology?The Chemistry of LifeCellular Structure and FunctionPhotosynthesis and Cellular Respiration The Cell Cycle, Mitosis, and MeiosisGregor Mendel and GeneticsMolecular Genetics: From DNA to ProteinsHuman Genetics and BiotechnologyLife: From the First Organism OnwardThe Theory of EvolutionThe Principles of EcologyCommunities and PopulationsMicroorganisms: Prokaryotes and Viruses

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