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The optimum pH is that at which the reaction takes place quickest. A change in pH above or below this optimum denatures the enzyme (ultimately breaking hydrogen bonds that maintain the tertiary structure). This means that the rate is reduced as you change the pH, but not stopped totally as only some of the enzyme molecules are denatured. The optimum pH is that at which the reaction takes place quickest. A change in pH above or below this optimum denatures the enzyme (ultimately breaking hydrogen bonds that maintain the tertiary structure). This means that the rate is reduced as you change the pH, but not stopped totally as only some of the enzyme molecules are denatured.
Wiki User
∙ 15y ago
Wiki User
∙ 10y ago-- pH
The rate of certain reactions is affected by the pH of the solution. If the reaction involves a proton, or H+ (Hydrogen) , then a more acidic solution will have a faster rate. because the pH is really just a measure of the H+ concentration. So if H+ is a reactant, than a low pH will have a higher concentration of that reactant, making for a faster reaction. Similarly, if OH- is a reactant, than a high pH will make the reaction go faster because at a high pH, the concentration of OH- is large (and the concentration of H+ is small -- they are inversely proportional).
Wiki User
∙ 12y agoIt depends on which chemical reaction you are referring to. There are many factors that may affect reactions. The pH value may not affect it at all or it may need to be high or low.
Wiki User
∙ 13y agopH increases the rate of enzyme reactions. It acts as a catalyst until the reaction reaches an equilibrium state.
Wiki User
∙ 12y agoExtremely high or low pH values generally result in complete loss of activity for most enzymes.
Wiki User
∙ 15y agoincrease the pH
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Why would a washing powder of high pH or low pH be difficult to handle?
actors such as temperature and pH can affect an enzyme's rate of reaction because enzymes are sensitive to pH and heat. Most enzymes can only function in a particular temperature or pH range, and as the enzyme works out of its normal temperature and pH range, it will denature (change in shape so that the active site no longer fits with the substrate and the enzyme can't function).
What three factors affect the rate of a biochemical reaction?
1. pH 2. Concentration - Enzyme and Substrate Concentrations (but to a certain degree) 3. Temperature
How does pH levels effect an enzyme?
All enxymes work at an optimum pH. Changes in pH levels could change the rate at which the enzymes work by denaturing them.
What are rates of reaction influenced by?
Temperature (rate increases with temp increase) Pressure (rate again increases with press increase) Concentration (rate increases with concentration increase) Particle size (rate increases with smaller particles) Catalyst increases rate.
Describe the change in the rate of reaction when the enzyme concentration is increased?
The increase of enzyme concentration increase the rate of reaction. Given a fixed amount of substrates, it means that the substrates will be digested faster as there are more enzymes to do the work. Substrate concentration, temperature, and pH value of the surrounding where the enzymes work on also affects the rate.
Is there any Procedure in enzyme and factors that affect enzyme activity?
pH, temperature, substrate concentration and enzyme concentration influences the rate of reaction
Will enzyme activity be higher or lower if the pH is high?
Yes it does. Enzymes increase rate of reaction as the pH level increases but enzymes work best at optimum pH. If pH level still increase, then enzyme will become denatured and rate of reaction once again decreases.
Idenify two internal environmental factors that directly influence the rate of enzyme action?
temperature and pH
What changes the rate of a reaction?
* Presence of enzyme * Change in pH * Change in temperature * Change in salt concentration.
What are 3 factors which can influence the activity of an enzyme?
temperature, PH and concentration of substrate (reaction).
Explain the effects of pH on enzyme reaction rates?
A change in pH can denature an enzyme, meaning the reaction would stop.
If an enzyme is exposed to an unfavorable pH?
Enzymes shows different enzyme activity in different pH value.If the pH is high or low than the optimum pH there is a decrease in the activity of the enzyme.But if the pH is very high or very low it may lead to the deactivation of the enzyme.
What can speed up an enzyme reaction?
An increase in temperature can increase the enzymatic reactions if it is not too hot and also if the pH is within the idea range it can speed up the reaction. The pH level is usually around 7 for most enzymes.
What Factors affecting enzyme?
you can say enzyme reaction depends on ph, temp
What affect would temperature and pH have on the Catalans enzyme?
Just like always, deviating from the desired normal functioning for the enzyme, whether it be in temperature or pH, would result in the enzyme denaturing and therefore being unable to for enzyme substrate complexes, therefore reducing the overall reaction rate.
What are the 3 factors that can change the rate of enzyme reaction?
The first factor is Enzyme concentration or subtrate concentration.The rate of enzyme action is directly proportional to to the availability of enzyme provided the substrate concentration unlimited.Or the rate is directly proportional to the substrate concentration if enzymes are limited but if enzyme concentration is kept constant then upto the certain level the increase in substrate amount will no longer increase the rate of enzyme action. Second factor is temperature.The rate if an enzyme action is always directly proportional to the increase in temperature but upto the specific limit called as optimum temperature. Third factor is the pH value.Enzymes can work efficiently over a narrow range of pH called as Optimum pH.A minor change in pH value can denature the enzyme.
Factors effecting catalase rate of reaction?
Temperature, pH, Substrate concentration, Enzyme concentration, Inhibitor concentration (ex. ammonia)
