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Within an aqueous solution, the concentration of a reactant is the number of molecules within a given amount of the solution.
The speed of a chemical reaction depends upon how many successful collisions take place within a set amount of time. For a reaction to take place, the molecules of the reactants have to collide with enough force and in the correct way for them to react. If you increase the concentration of the reactants, there are more molecules and subsequently a higher chance of there being a successful collision.
Increasing the temperature also increases the number of successful collisions during a set amount of time (often referred to as collisions per second). It gives the molecules more energy so that when they collide they are traveling faster and, thus, are more likely to react together.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoIn one word STATISTICS. By increasing the concentration of reactants, the rate of reaction increases because there are STATISTICALLY more particles in a given volume. The reaction proceeds faster. Imagine just one atom of each reaction. The STATISTICAL chance of them reacting is extremely small.
Wiki User
∙ 12y agoFirst, you have to understand that in a chemical reaction, the enzyme and substrate go together like a lock and key, the product of which is more noticeable when many go together at one time.
Now, if there were more substrates to enzymes, this would make it easier for an enzyme to find a substrate, and thus show a more immediate reaction.
Wiki User
∙ 11y agoBecause enzymes speed up the reactions.
enzymes are biological catalysts! so just like many other catalysts they also speed up chemical reactions...but there are some enzymes which inhibit chemical reactions too!
One of the ways enzymes promote reactions is that the active sites on the enzyme molecule interact with reactants to lower the activation energy for the reaction. The more enzyme molecules you have, the more active sites you have and thus the more reactant molecules you can interact with. At some point of course you have a surplus of enzyme molecules and adding more won't speed things up any.
Wiki User
∙ 7y agoBecause if you have more substrate, it increases the chance of the chemical reactions. I can't give you the link, but Google "Ted talk on chemical reactions and dating" and it comes up with an analogy that is extremely helpful!
Wiki User
∙ 9y agoIn Chemistry it looks like more substrate speed up a chemical reaction because molecules does not fit in the exact site.
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∙ 14y agomore products are fabricated faster
Wiki User
∙ 13y agohuh
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What is the substrate of catalase?
A substrate is a substance in which an enzyme reacts. The substrate for catalase would be hydrogen peroxide otherwise known as H2O2.
What is a change in the shape of an enzyme allowing it to react effectively with a substrate is a what?
An induced fit is a change in the shape of an enzyme which allows it to react effectively with a substrate. The reason for the alteration is to speed up a chemical reaction.
The effect of substrate concentration on the rate of reaction of h202 and catalase?
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.
What is an enzyme and how does it help speed up a chemical reaction?
enzymes provide an alternative pathway for the reaction,one which is lower than the original activation energy. according to the Maxwell distribution,the number of molecules having the new activation energy is greater,thus there are more molecules which can react and therefore rate of reaction is greater,thus causing enzymes to be catalysts.
Why when adding catalase to sucrose not makes it bubble?
Catalase is an enzyme that is substrate-specific, meaning that it has a particular reaction that it will catalyze (to speed up a reaction). Hydrogen peroxide (H2O2) is the specific substrate reactant with which catalase will react (in a degradation reaction). This is the degradation (breaking down of) reaction. 2H2O2 yields 2H2O+O2 O2 is oxygen which is indicated by the rising of bubbles upon reaction between the hydrogen peroxide and the catalase. Sucrose is not the specific substrate assigned to the catalase enzyme, therefore they will not react together in a degradation reaction, hence the lack of oxygen release (lack of bubbles). I hope this was helpful to you. God bless and Jesus loves you.
Why do enzymes react?
The molecule that an enzyme react with, works on, is called a substrate. The substrate varies from one enzyme to another. The active site is the 3-D shape on the enzyme where a substrate binds for the reaction to take place.
An enzyme acts to?
Enzymes act on molecules called substrates. The kind of substrate depends on the shape of the enzyme.
What is an enzyme complex substrate?
An enzyme-substrate complex uses the reactants(substrates) and the enzyme. The enzyme is like a catalyst that reduces the required activation energy and speeds up the chemical reaction.
What is the substrate of catalase?
A substrate is a substance in which an enzyme reacts. The substrate for catalase would be hydrogen peroxide otherwise known as H2O2.
How does a enzyme increase the rates of reactions?
An enzyme increases the rate of the reaction by lowering the activation energy needed for the reaction. The secret is that enzymes weaken the bonds in the substrate so that products are formed much faster. Enzymes are catalysts or substances that speed up the reaction (without being consumed in it). An enzyme increases the rate of reaction by lowering the energy of activation or (Ea). Enzymes achieve that by attaching to the substrate in the active site and forming an enzyme substrate complex in which the enzyme disturbs the covalent bond of the substrate. This causes it to enter the transitional state, which is the most energetic and unstable state. The enzyme then breaks apart, and the substrate goes into an exorganic reaction to form the product.
Can anyone help with this question Describe the relationship between substrate concentration and the initial reaction rate of an enzyme-catalyzed reaction Is this a linear relationship What happens t?
The more substrate the faster the rate of reaction up to a point where it levels out. Basically the enzymes and substrates bounce around until they meet the substrate that the enzyme can catalyse so obviously with more substrate there's more chance of he enzyme bumping into the right substrate
What is a change in the shape of an enzyme allowing it to react effectively with a substrate is a what?
An induced fit is a change in the shape of an enzyme which allows it to react effectively with a substrate. The reason for the alteration is to speed up a chemical reaction.
What enzyme speeds up a chemical reaction is known as?
All enzyme's are catalysts for certain chemical reactions. Each enzyme will only work with a certain substrate one analogy being that the enzyme is a key and the substrate is a keyhole, and each enzyme has a unique enzyme.
What is chemical reaction in an enzyme?
to speed up a chemical reaction
Describe the roles of a catalyst and substrate in a chemical reaction?
A catalyst is a substance that speeds up the rate of a chemical reaction. Catalysts work by lowering a reaction's activation energy.A substrate is a reactant of an enzyme-catalyzed reaction.
Chemicals that speed up chemical reaction?
Enzyme or catalyst
The effect of substrate concentration on the rate of reaction of h202 and catalase?
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.
