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Answered 2014-10-07 17:20:39

Enzymes act as catalysts. They speed up the reaction time.

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The function of enzymes in living things is to catalyze (instigate, speed up) chemical reactions.


Enzymes speed up chemical reactions that take place in cells. Temperature, pH, and regulatory molecules can affect the activity of enzymes.


Enzymes act as biological catalysts, speeding up various bodily reactions.


because they are catalyzing biochemical reactions inside the living things (cell)




Enzymes lower the activation energy (or free energy of activation for the very scientific) of the chemical reactions they catalyse. The enzymes can make a reaction proceed much more quickly than it otherwise would by astronomical figures, e.g. 109 times! Enzymes don't affect the equilibrium position, but they do affect the rate.


reactions to occur rapidly and at body temperature


Enzymes provide a surface on which reactions can take place.


Living things carry out the chemical activities of life through biochemical reactions controlled by enzymes.


Living things use enzymes instead of a heat source of activation energy because they speed up chemical reactions as well as the metabolism in those living things.


Enzymes act as biological catalysts which means they speed up chemical reactions in living things. 3 things that affect its rate would be temperature, pH, and regulatory proteins that turn them on or off.


Enzymes are found in all living things - they are the catalysts for most biochemical reactions - so all foods that are living will have enzymes. Once they have been cooked or preserved the enzymes will have denatured and no longer be present.


Enzymes are proteins that speed up chemical reactions in the body.


Enzymes are proteins found in living things that act to catalyze specific reactions. Made up of a complex of amino acids, enzymes are part of every chemical reaction in living things. They aid in digestion, the growth and building of cells, and all reactions involving the transformation of energy. Inside the cell, enzymes create RNA and DNA by facilitating the reaction of ribose with adenosine. They also specify the sites for linking to build RNA along a DNA template.


Enzymes are proteins that act as catalysts speeding up the rates of chemical reactions in living things.


The proteins known as enzymes are vital to living things because they speed up chemical reactions up to a trillion times.


Chemical reactions in living things are usually speeded up by catalysts called enzymes.


The proteins known as enzymes are vital to living things because they speed up chemical reactions up to a trillion times.


Because in the absence of these biochemical catalysts (enzymes) the reactions would be impossible or too slow.


Enzymes are any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions. They help break down foods you eat and play a role in major chemical reactions. For example, without enzymes we could not break down milk because it contains lactose. People that don't have the enzyme lactase are lactose intolerant. This shows how enzymes are so important to living things.




Reactions take place too slowly at body temperature and must be speeded up.


Enzymes are a type of protein that catalyse chemical reactions. There are many different types. They speed up the reaction by lowering the activation energy. This is the amount of energy needed to begin the reaction. The proteins that are vital to living things because they speed up chemical reactions are called enzymes. They are catalysts that lower the activation energy of chemical reactions.