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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
∙ 13y 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.
Wiki User
∙ 14y agomore products are fabricated faster
Wiki User
∙ 13y agohuh
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Hydrogen is a substrate of the enzyme catalase?
Yes, that's correct. Catalase is an enzyme that helps break down hydrogen peroxide into water and oxygen. Hydrogen peroxide is the substrate in this reaction, and catalase helps speed up the decomposition process.
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.
WHich action would most likely increase the rate of an enzyme-controlled reaction during an experiment?
Increasing the temperature or increasing the concentration of substrate would most likely increase the rate of an enzyme-controlled reaction during an experiment. This is because higher temperatures or substrate concentrations can speed up the rate of enzyme-substrate collisions, leading to more enzymatic reactions taking place.
What is the substrate of catalase?
Catalase acts on hydrogen peroxide, which is its substrate. It catalyzes the decomposition of hydrogen peroxide into water and oxygen.
The effect of substrate concentration on the rate of reaction of h202 and catalase?
As substrate concentration increases, the rate of reaction between hydrogen peroxide (H2O2) and catalase also increases initially due to more substrate molecules colliding with enzyme active sites. However, at a certain point, the rate of reaction plateaus as all enzyme active sites become saturated and adding more substrate does not increase the reaction rate further. This is known as the enzyme substrate saturation point.
Is a substrate an enzyme?
No, a substrate is the molecule that the enzyme acts upon to catalyze a reaction. Enzymes are proteins that function as biological catalysts, helping to speed up chemical reactions by lowering the activation energy.
How do you speed up an enzyme reaction?
You can speed up an enzyme reaction by increasing the temperature, raising the substrate concentration, or maintaining an optimal pH for the enzyme. Additionally, using enzyme cofactors or coenzymes can also enhance the reaction rate.
An enzyme acts to?
An enzyme acts to speed up chemical reactions by lowering the activation energy required for the reaction to occur. It does this by binding to specific substrates and facilitating the conversion of reactants into products. Enzymes are specific in their function, often catalyzing only one type of reaction.
How does mixing in another substrate affect how fast a enzyme works?
Adding another substrate can either increase or decrease the rate at which an enzyme works. If the additional substrate competes with the original substrate for the active site, it can slow down the enzyme activity (competitive inhibition). On the other hand, if the additional substrate binds to a different site on the enzyme and enhances its activity, it can speed up the enzyme reaction.
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.
What things might slow down or speed up and enzyme reaction?
Factors that can slow down an enzyme reaction include low substrate concentration, low pH levels, high temperature, or the presence of inhibitors. Conversely, factors that can speed up an enzyme reaction include high substrate concentration, optimal pH levels, optimal temperature, or the presence of activators.
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?
Catalase acts on hydrogen peroxide, which is its substrate. It catalyzes the decomposition of hydrogen peroxide into water and oxygen.
What is the reactants of an enzyme-catalyzed reaction known as?
The reactants of an enzyme-catalyzed reaction are known as substrates. Enzymes bind to their specific substrates to facilitate and speed up the chemical reactions they catalyze.
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.
Rank reactions from fastest to lowest uncatalyzed reaction reaction catalyzed by enzyme A reaction catalyzed by enzyme B?
Reaction catalyzed by enzyme B > reaction catalyzed by enzyme A > uncatalyzed reaction. Enzymes speed up reactions by lowering the activation energy required for the reaction to occur, making them faster than uncatalyzed reactions. The specificity and efficiency of enzyme-substrate interactions determine the rate of reaction catalyzed by different enzymes.
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?
Up to a certain point, increasing substrate concentration generally increases the initial reaction rate of an enzyme-catalyzed reaction due to more substrate molecules binding to active sites. This relationship is often linear at low substrate concentrations. At higher substrate concentrations, the reaction rate may reach a plateau due to all enzyme active sites being occupied, leading to saturation.
