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What changes did you observe in the enzyme reaction and control reaction conical tubes during the time that the reaction was occurring?
In the enzyme reaction conical tube, you would likely observe a faster rate of reaction and a decrease in substrate concentration over time as the enzyme catalyzes the reaction. In the control reaction conical tube, you would not see significant changes in substrate concentration or reaction rate since there is no enzyme present to facilitate the reaction.
What has no effect on the rate of an enzyme-catalyzed reaction?
Enzyme concentration has no effect on the rate of an enzyme-catalyzed reaction after reaching a saturation point where all enzyme active sites are occupied. At this point, adding more enzyme will not increase the reaction rate further.
What would the reaction rate do if another substance that binds to the active site of catalase was added?
If another substance binds to the active site of catalase, it could potentially inhibit or slow down the enzyme's activity. This could decrease the rate of reaction catalyzed by catalase, as the binding of the other substance may interfere with the enzyme's ability to bind with its substrate and convert it to products.
Why does heating a enzyme make it react quicker?
Heating an enzyme can increase its reaction rate by providing more thermal energy, which helps molecules move faster and collide more frequently. This can result in more successful enzyme-substrate interactions and therefore increase the rate of the enzymatic reaction. However, excessive heat can also denature the enzyme and impair its function.
What happens when crushed potato was added to hydrogen peroxide?
When crushed potato is added to hydrogen peroxide, the enzyme catalase in the potato catalyzes the decomposition of hydrogen peroxide into water and oxygen gas. This reaction produces bubbling or foaming as the oxygen gas is released.
What will most likely happened if an appropriate enzyme is added to a chemical reaction?
The enzyme will act as a catalyst, a compound that lowers that activation energy of the reaction, and therefore, increase the rate of the reaction.
What changes did you observe in the enzyme reaction and control reaction conical tubes during the time that the reaction was occurring?
In the enzyme reaction conical tube, you would likely observe a faster rate of reaction and a decrease in substrate concentration over time as the enzyme catalyzes the reaction. In the control reaction conical tube, you would not see significant changes in substrate concentration or reaction rate since there is no enzyme present to facilitate the reaction.
What are two factors that are affected when an enzyme is added to a chemical reaction?
- with enzymes the rate of reaction is higher- an important characteristic of an enzyme is the specifity
What has no effect on the rate of an enzyme-catalyzed reaction?
Enzyme concentration has no effect on the rate of an enzyme-catalyzed reaction after reaching a saturation point where all enzyme active sites are occupied. At this point, adding more enzyme will not increase the reaction rate further.
Why is the secondary antibody used in an ELISA test conjugated with an enzyme?
The secondary antibody in an ELISA test is conjugated with an enzyme to amplify the signal produced when the antibody binds to the target antigen. This enzyme-substrate reaction generates a detectable signal that indicates the presence of the antigen, which allows for more sensitive and accurate detection in the ELISA assay.
What would the reaction rate do if another substance that binds to the active site of catalase was added?
If another substance binds to the active site of catalase, it could potentially inhibit or slow down the enzyme's activity. This could decrease the rate of reaction catalyzed by catalase, as the binding of the other substance may interfere with the enzyme's ability to bind with its substrate and convert it to products.
Why does heating a enzyme make it react quicker?
Heating an enzyme can increase its reaction rate by providing more thermal energy, which helps molecules move faster and collide more frequently. This can result in more successful enzyme-substrate interactions and therefore increase the rate of the enzymatic reaction. However, excessive heat can also denature the enzyme and impair its function.
Why is a blank used in salivary amylase?
A buffer solution containing sodium phosphate and sodium chloride is added to the salivary amylase to maintain a constant pH level during the enzymatic reaction. The buffer helps ensure that the enzyme retains its activity and stability.
What is the significance of the standard Gibbs free energy change (G') in determining the feasibility of a chemical reaction?
The standard Gibbs free energy change (G') is important in determining if a chemical reaction is feasible because it indicates whether the reaction will occur spontaneously. If G' is negative, the reaction is likely to proceed forward without added energy. If G' is positive, the reaction is unlikely to occur without external energy input.
Will the pH change when an alkali is added to an acid?
Yes, the pH will change when an alkali is added to an acid. The addition of an alkali to an acid will result in the neutralization reaction, forming water and salt. This reaction will change the pH towards being more neutral.
What happens when crushed potato was added to hydrogen peroxide?
When crushed potato is added to hydrogen peroxide, the enzyme catalase in the potato catalyzes the decomposition of hydrogen peroxide into water and oxygen gas. This reaction produces bubbling or foaming as the oxygen gas is released.
WHY DOES PHENOLPHTHALENE TURNS COLORLESS WHEN ADDED BY SULFURIC ACID?
When phenolphthalein is added to sulfuric acid, the sulfuric acid causes the phenolphthalein molecule to lose its specific color due to a chemical reaction that alters its molecular structure. This reaction likely involves protonation of the phenolphthalein molecule, leading to a change in its absorption of light and resulting in a colorless solution.
