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How Do Enzymes Work?
Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy required for a reaction to take place. Learn about the induced fit model, and how it's related to enzymes with help from a science teacher and field... More »
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Source: www.ehow.com

en.wikipedia.org/wiki/Enzyme

Chemically, enzymes are like any catalyst and are not consumed in chemical reactions, nor do they alter the equilibrium of a reaction. Enzymes differ from most other catalysts by being much more specific. Enzyme activity can be affected by other molecules: inhibitors are molecules that decrease enzyme activity, and ...

www.livescience.com/45145-how-do-enzymes-work.html

Apr 26, 2014 ... Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism. Some enzymes help break ...

www.dummies.com/education/science/biology/how-do-enzymes-work-in-the-human-body

Enzymes are proteins that allow certain chemical reactions to take place much quicker than the reactions would occur on their own. Enzymes function as catalysts, which means that they speed up the rate at which metabolic processes and reactions occur in living organisms. Usually, the processes or reactions are part of a ...

www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/proteins/proteinsrev2.shtml

How enzymes work. Enzymes are biological catalysts - substances that increase the rate of chemical reactions without being used up. Enzymes are proteins folded into complex shapes that allow smaller molecules to fit into them. The place where these substrate molecules fit is called the active site. The animation shows ...

www.rsc.org/Education/Teachers/Resources/cfb/enzymes.htm

But they do not undergo permanent changes and so remain unchanged at the end of the reaction. They can only alter the rate of ... How enzymes work. For two molecules to react they must collide with one another. They must collide in the right direction (orientation) and with sufficient energy. Sufficient energy means that ...

www.khanacademy.org/science/biology/energy-and-enzymes/introduction-to-enzymes/a/enzymes-and-the-active-site

Enzymes perform the critical task of lowering a reaction's activation energy—that is, the amount of energy that must be put in for the reaction to begin. Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily.

academic.brooklyn.cuny.edu/biology/bio4fv/page/how_enz.htm

Enzyme reactions involve a substance (substrate ) that is converted to another substance (product ). These reactions can be subdivided as follows. Binding reaction : the enzyme binds to the substrate. Catalysis : the substrate is converted to product. The substrate binds to the enzyme at place on the enzyme called the

www.ask.com/youtube?q=How+Do+Enzymes+Work%3F&v=np2JUCVvBwQ
Dec 3, 2014 ... Enzymes speed up (catalyse) chemical reactions by lowering the amount energy required to start the reaction. The energy required to start the reaction is called activation energy. Enzymes lower activation energy by either putting strain on the chemical bonds of a substrate molecule or bringing substrate ...

www.chem4kids.com/files/bio_enzymes.html

The specialized robot arms just can't do the job. Enzymes are the same. They can only work with specific molecules and only do specific tasks. Because they are so specific, their structure is very important. If only one amino acid of the enzyme is messed up, the enzyme might not work. It would be as if someone unplugged ...