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This is a searchable collection of scientific photos, illustrations, and videos. The images and videos in this gallery are licensed under Creative Commons Attribution Non-Commercial ShareAlike 3.0. This license lets you remix, tweak, and build upon this work non-commercially, as long as you credit and license your new creations under identical terms.

Active Site of E. coli response regulator PhoB

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Active site of E. coli response regulator PhoB. Ann Stock, Rutgers University View Media

Bond types

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Ionic and covalent bonds hold molecules, like sodium chloride and chlorine gas, together. Hydrogen bonds among molecules, notably involving water, also play an important role in biology. Crabtree + Company View Media

Glucose and sucrose

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Glucose (top) and sucrose (bottom) are sugars made of carbon, hydrogen, and oxygen atoms. Carbohydrates include simple sugars like these and are the main source of energy for the human body. Crabtree + Company View Media

ATP synthase (with labels)

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The world's smallest motor, ATP synthase, generates energy for the cell. See image 2517 for an unlabeled version of this illustration. Crabtree + Company View Media

HIV Capsid

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This image is a computer-generated model of the approximately 4.2 million atoms of the HIV capsid, the shell that contains the virus' genetic material. Juan R. Perilla and the Theoretical and Computational Biophysics Group, University of Illinois at Urbana-Champaign View Media

See how immune cell acid destroys bacterial proteins

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This animation shows the effect of exposure to hypochlorous acid, which is found in certain types of immune cells, on bacterial proteins. American Chemistry Council View Media