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In Chemistry / High School | 2014-10-31

Enzymes increase the rate of a reaction by __________?

A. Contributing water to the reaction.
B. Contributing electrons to the reaction.
C. Changing the pH of the substrates.
D. Decreasing activation energy.
E. Increasing the temperature of the substrates.

Asked by Adela578

Answer (3)

D, enzymes are catalysts and catalysts work by decreasing activation energy required and therefore increasing rate of reaction.

Answered by Angharad | 2024-06-10

Enzymes increase the rate of a chemical reaction by decreasing **activation energy **and acting as catalysts.

What is a chemical reaction?
Chemical reactions are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.
There are several** characteristics of chemical reactions like change in color, change in state , change in odor a nd change in composition . During chemical reaction there is also formation of precipitate **an insoluble mass of substance or even evolution of gases.
There are** three type**s of chemical reactions:

inorganic reactions

2)organic reactions

biochemical reactions

During chemical reactions atoms are rearranged and changes are accompanied by an energy chang e as new substances are formed.
Learn more about **chemical reactions,**here:
https://brainly.com/question/29039149
#SPJ6

Answered by sawan121 | 2024-06-17

Enzymes speed up chemical reactions by lowering the activation energy required for the reactions to occur. They achieve this through various mechanisms, such as forming enzyme-substrate complexes and providing optimal orientations for the substrates. The correct answer to your question is D. Decreasing activation energy.
;

Answered by sawan121 | 2024-11-01

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