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All reaction, regardless of being exergonic, need energy to complete/go through the reaction. Enzymes lower that activation energy.
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∙ 13y ago
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How does the addition of urea affect the rate of enzyme reaction?
Urea denatures the enzyme as it disrupts the 3-D structure of the enzyme, this changes the shape of the enzymes' active site, thus meaning that the enzyme is unable to create an enzyme-substrate complex which then means that the reaction cannot occur thus the rate of the enzyme controlled reaction becomes very slow.
Relate the shape of an enzyme to its ability to help in a chemical reaction?
The shape of an enzyme will determine its ability to help in a chemical reaction. These proteins that will break down substance in the body and catalyze chemical reactions.
Enzymes speed up chemical reactions by?
by lowering the activation energy of reactions
Within limits increasing the temperature within a cell causes more enzyme-catalyzed reaction to occur?
True
How enzyme catalyze chemical reaction?
Enzymes lower the activation energy of a reaction (that is, the amount of energy that is needed in order for the reaction to occur).Without an enzyme, a reaction may need so much energy that it is impossible to obtain in a normal biological timespan. With enzymes, reactions require much less energy, so that they can occur hundreds of times a second.Enzymes can achieve this catalysis in many ways - for instance, if a reaction involves two substances combining to form one, the enzyme can bind each substance in a specific site that forces them close together, making the reaction much more likely to occur and requiring much less energy for the substrates to locate and approach one another.
How does the addition of urea affect the rate of enzyme reaction?
Urea denatures the enzyme as it disrupts the 3-D structure of the enzyme, this changes the shape of the enzymes' active site, thus meaning that the enzyme is unable to create an enzyme-substrate complex which then means that the reaction cannot occur thus the rate of the enzyme controlled reaction becomes very slow.
What is a biological cayalyst?
A biological catalyst is an enzyme. An enzyme lowers the amount of activiation energy in order for a reaction to occur, they are also reusable.
How does an enzyme help in a chemical reaction?
It speeds up the reaction by lowering activation energy.
Relate the shape of an enzyme to its ability to help in a chemical reaction?
The shape of an enzyme will determine its ability to help in a chemical reaction. These proteins that will break down substance in the body and catalyze chemical reactions.
How does does an enzyme reaction occur?
All reaction, regardless of being exergonic, need energy to complete/go through the reaction. Enzymes lower that activation energy.
Enzymes speed up chemical reactions by?
by lowering the activation energy of reactions
Rank reactions from fastest to lowest uncatalyzed reaction reaction catalyzed by enzyme A reaction catalyzed by enzyme B?
A reaction catalyzed by enzyme a reaction cataly by enzyme b uncatalyzed reaction
What fits with an enzyme to make a reaction occur?
The substrate fits into the enzyme, much the way a key fits in a lock. Sometimes there are other "modulators" that also fit in the enzyme.
What does an enzyme combine with temporarily to help form products?
Substrates (the physical reactants in the reaction) and/or cofactors (additional molecules which help the reaction)
Within limits increasing the temperature within a cell causes more enzyme-catalyzed reaction to occur?
True
What substance can be used to stop enzyme reaction?
prohibitors are used to enzyme reaction
How does an enzyme change how a reaction occurs?
An enzyme speeds up your reaction in your body.
