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If one were to double the amount of enzyme in a reaction with an initial G of -5 kcal mole what would the G be?
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What has no effect on the rate of an enzyme-catalyzed reaction?
When an enzyme is saturated the amount of substrate added no longer as an effect on the rate of the reaction.
Why does an enzyme function like a catalyst in a reaction?
It decreases the amount of energy needed for the reaction.
What will most likely happen if the amount of enzyme that catalyzes this reaction is increased?
The reaction will speed up.
Is more energy required for a chemical reaction in the absence of an enzyme?
Without an enzyme, the activation energy needed to start a reaction is much greater. An enzyme is a catalyst, which decreases the amount of activation energy needed to start a reaction. By doing so, it decreases the amount of time the chemical reaction takes place.
What is the maximum initial reaction rate for this enzyme at pH7?
It's 350 - I'm n biology HNRS
Describe the relationship between substrate concentration and the initial reaction rate of an enzyme-catalyzed reaction Is this a linear relationship What happens to the initial reaction rate as sub?
As the substrate concentration increases so does the reaction rate because there is more substrate for the enzyme react with.
What has no effect on the rate of an enzyme-catalyzed reaction?
When an enzyme is saturated the amount of substrate added no longer as an effect on the rate of the reaction.
Why does an enzyme function like a catalyst in a reaction?
It decreases the amount of energy needed for the reaction.
Does vmax increase with increasing amount of enzyme?
Yes, Vmax has a linear relationship with the amount of enzyme. This in turn deceases the Km of the reaction.
What will most likely happen if the amount of enzyme that catalyzes this reaction is increased?
The reaction will speed up.
Is more energy required for a chemical reaction in the absence of an enzyme?
Without an enzyme, the activation energy needed to start a reaction is much greater. An enzyme is a catalyst, which decreases the amount of activation energy needed to start a reaction. By doing so, it decreases the amount of time the chemical reaction takes place.
What is the maximum initial reaction rate for this enzyme at pH7?
It's 350 - I'm n biology HNRS
Enzyme reduce the amount of blank needed to start a reaction?
activation energy
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 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.
The initial rate of an enzyme catalysed reaction depend on?
Based on Michaelis-Menten enzyme kinetics, the initial rate of reaction, vi, is dependent on maximum rate Vmax, substrate concentration [S], and the enzyme's Michaelis constant Km, which represents the the tendency of the substrate/enzyme complex to dissociate. The dependence on enzyme concentration is factored into the maximum rate. The equation to describe this is: vi = Vmax([S]/(Km+[S])) Follow the link below for details.
How does pH affect enzyme functions?
Enzymes lower the amount of Activation Energy needed for a chemical reaction, therefore speeding up the chemical reaction. For an enzyme to do this it needs to be at the correct pH, salinity, and temperature otherwise the enzyme will not be able to work. When an enzyme is in a pH that is not suitable, the enzyme's shape and structure alter and make it unable to speed up a reaction.
