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The effect of substrate concentration on the rate of reaction of h202 and catalase?
Wiki User
∙ 15y ago
As the substrate concentration increases, so will the enzyme activity and hence there will be a quick reaction. however, only up to a certain point ( where, if you drew a graph of the reaction, the line will level off ) as all the active sites in the enzyme are occupied and the reaction cannot go any faster. Here more enzymes will be needed to speed up the reaction.
Wiki User
∙ 16y ago
Wiki User
∙ 15y agoAs the concentration of substrate decreases, due to its conversion to product(s), the rate of the reaction will slow. This is due to the less and less frequent random encounters between substrate and enzyme. As more of the peroxide is converted to oxygen and water, there is less remaining to interact with the enzyme; therefore, the reactions slows.
Wiki User
∙ 15y agoMost enzyme reaction rates are calculated using a steady state assumption, given that the enzyme concentration typically doesn't change once the reaction is started, The only effect increasing enzyme concentration has is to increase the initial rate of the reaction, until the avaiable enzyme concentration shifts to the concentration of the enzyme-substrate complex. Reference any text on Michaelis Menten Kinetics to see the derivation.
Wiki User
∙ 15y agodifferent enzymes require different PH to function effectively, PH too high or low may destroy the enzyme. increasing the substrate amount will increase the resulting products within a time period, this is limited though by the amount of enzyme.
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Is Vmax a threshold of substrate concentration for initiation of an enzymatic reaction?
Oddly phased question in my opinion. Vmax is only effected by the amount of enzyme present in the reaction. Substrate concentration has zero effect on Vmax. There for I believe the answer in no. {Enzyme concentration is responsible for this}
What is activation energy and how do enzymes effect it?
There is no straight forward relation between enzyme and activation energy because although energy of reaction is fixed and is governed by laws of chemistry but for biochemical reactions concentration of enzyme and conc. of substrate affect rate of reaction and energy, but in general enzymes decrease activation energy of reaction.
What three conditions can effect enzyme reactions?
1. Temperature (high temperature might denature an enzyme) 2. Concentration of substrate 3. Presence of a catalyst
What are the three things that effect enzymes?
Following are the factors affectingenzymes:SalinityTemperatureInhibitorsAllosteric factorspH levelSubstate concentrationCatalystEnzyme concentration
What does a competitive inhibitor bind to?
A competitive inhibitor is a molecule that binds to the active site of an enzyme, to prevent substrates entering the active site and therefore lowering the rate of reaction. Some drugs act as competitive inhibitors to control reactions in the body, and the body also releases competitive inhibitors as a means of self control. But remember that the amount of product formed is still remain the same, only the time taken increased.
Is Vmax a threshold of substrate concentration for initiation of an enzymatic reaction?
Oddly phased question in my opinion. Vmax is only effected by the amount of enzyme present in the reaction. Substrate concentration has zero effect on Vmax. There for I believe the answer in no. {Enzyme concentration is responsible for this}
How does initial concentration of substrate effect enzyme activity?
At low concentration of substrate , rate of enzyme action is directly proportional to conc. of substrate .
What product of catalase reaction causes bubbling?
Oxygen is the product of the catalase reaction causes bubbling. pH is varied when testing the effect of pH on enzyme activity.
What effect enzymes activity?
Temperature, pH, substrate concentration
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.
What effect does the concentration on reactants have on the rate of a reaction?
increasing the concentration increases the rate of the reaction
What effect does the concentration of reactants have on the rate of reaction?
increasing the concentration increases the rate of the reaction
What effect of concentration of reactants have on the rate of a reaction?
increasing the concentration increases the rate of the reaction
How does changing the substrate concentration exhibit the same effect as changing the enzyme concentration?
For the enzyme to work, its particles must collide with the particles of the substrate. The more particles there are per unit volume, the more frequent the collisions will be. Thus changing the concentration of either chemical will have the same effect.
Why will increasing the substrate concentration not decrease the effect of a non competitive inhibitor?
Because you will still have the same number of enzymes inhibited. For example, you have 20 enzymes and 10 non-competitive inhibitors. Regardless of substrate concentration, at any one time, there will only be 10 enzymes available to accept a substrate. Increasing the substrate concentration does not affect this.
What effect does the concentration of reactants have on the rate of speed?
The effect of concentration of reactants on rate of reaction depends on the ORDER of the reaction. For many reactions, as the concentration of reactants increases, the rate of reaction increases. There are exceptions however, for example a zero order reaction where the rate of reaction does not change with a change in the concentration of a reactant.
What is the effect varying the concentration on the rate of reaction time?
Increasing the concentration of the reactants the rate of reaction increase.
