Are enzymes consumed in a chemical reaction?

Answer 1

No, enzymes are not destroyed, consumed, etc. they are reused constantly, however they can have their structure changed, which changes its function, but that does not happen during a chemical reaction.

Answer 2

Usually not - they are usually regenerated. However, some substrates can permanently change the structure of an enzyme which makes it unable to work normally anymore which is like destroying it.

Answer 3

Enzymes are catalysts and catalysts are used to speed up a reaction without being used up themselves (or destroyed).

(This isn't exactly what you asked, but I thought it might be relevant):

However, enzymes can become denatured (destroyed - they are unable to function) if they are in hot temperatures that are above their optimum temperature. This causes the bonds that hold the "active site" in place to break down and as a result, it changes shape. In order for an enzyme to build up / break down a substrate (reactant), the substrate must fit with active site. If the active site changes shape, then the substrate will no longer fit and so the enzyme will no longer be able to do its job (it's become denatured).

Also, if an enzyme works best at say a neutral pH and it's in acidic conditions, then this will also cause the enzyme to become denatured.

Answer 4

Enzymes are organic catalysts. They participate in, but are not consumed by, the chemical reactions that they moderate.

Answer 5

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Answer 6

yes enzymes used up during chemical reaction

Answer 7

Yes enzymes increase the rates of chemical reactions

Answer 8

No.