Hexokinase enzyme binding to glucose. Illustration of the enzyme hexokinase (orange) binding to a glucose sugar molecule (blue) to form an enzyme-susb

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Hexokinase enzyme binding to glucose. Illustration of the enzyme hexokinase (orange) binding to a glucose sugar molecule (blue) to form an enzyme-susbstrate complex. This catalyses the phosphorylation of the sugar. The part of the enzyme where the reactant molecule or substrate binds is called the active site. Each enzyme has a specific substrate which is determined by the shape and size of its active site. Following the enzyme-substrate complex formation (right), the interaction between the enzyme and its substrate takes place, resulting in a new product.

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Photo credit: © CARLOS CLARIVAN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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