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How might amino acid change affect the enzyme?
The pKA of enzyme affects its ionization which could alter enzyme activity. For pH < pKa, the value of vmax is constant and that for pH > pKa, vmax decreases; ie. enzyme activity starts to decline.
What three things can alter the rate of an enzyme?
Three things that can alter the rate of an enzyme are; temperature, pH and substrate concentration. Enzymes will have an optimal temperature and pH, at which they will have the greatest rate. Below or above these optimum conditions, the rate will be slower.
How is the enzyme catalyze influenced by pH?
All enzymes have a range of pH where they are most effective. Too acidic or too basic environments will cause the enzyme to decrease in effectiveness, potentially stopping the enzyme from functioning all together.
What are 3 things that can alter enzyme activity?
1. Temperature. 2. P.H level. 3. Enzyme concentration
What two factors change the efficiency of an enzyme?
pH and temperature.
How might amino acid change affect the enzyme?
The pKA of enzyme affects its ionization which could alter enzyme activity. For pH < pKa, the value of vmax is constant and that for pH > pKa, vmax decreases; ie. enzyme activity starts to decline.
Change in the pH should the enzyme?
If you change the pH, the enzyme can become inactive and won't be able anymore to forfill its function.
What three things can alter the rate of an enzyme?
Three things that can alter the rate of an enzyme are; temperature, pH and substrate concentration. Enzymes will have an optimal temperature and pH, at which they will have the greatest rate. Below or above these optimum conditions, the rate will be slower.
Explain the inhibiting effect of sulfuric acid on the function of catalase Relate this to enzyme structure and chemistry?
Enzymes work best at the optimum pH of 7.0. The addition of sulfuric acid causes the pH to become lower and this deactivating the enzyme. This change in pH can cause the side chains of an amino acid to change in its charge which can result in a change of protein. This can greatly alter the reaction that was to take place.
How is the enzyme catalyze influenced by pH?
All enzymes have a range of pH where they are most effective. Too acidic or too basic environments will cause the enzyme to decrease in effectiveness, potentially stopping the enzyme from functioning all together.
Explain the effects of pH on enzyme reaction rates?
A change in pH can denature an enzyme, meaning the reaction would stop.
How does pH affect enzyme functions?
Enzymes lower the amount of Activation Energy needed for a chemical reaction, therefore speeding up the chemical reaction. For an enzyme to do this it needs to be at the correct pH, salinity, and temperature otherwise the enzyme will not be able to work. When an enzyme is in a pH that is not suitable, the enzyme's shape and structure alter and make it unable to speed up a reaction.
What are 3 things that can alter enzyme activity?
1. Temperature. 2. P.H level. 3. Enzyme concentration
Which enzyme shows the greatest change in its rate of action with the least change in pH?
The enzyme with lowest pH optimum is pepsin. Pepsin works in the stomach in an acidic environment and aids in digestion.
How are enzymes affected by changes in pH?
A change in pH or and change in temperature will change the shape of the enzyme because its proteins are denatured. Therefore, the enzyme can no longer perform its desired functions because its specific shape has been altered.
What two factors change the efficiency of an enzyme?
pH and temperature.
What is a change in this can denature a protein?
Temperature, pH, organic solvent, mechanical forces
