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Which segmant would be different if it were catalyzed by an enzyme?
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What would happen if most biochemical reactions are catalyzed by the same enzyme?
If an enzyme produces too much of one substance in the organism, that substance may act as an inhibitor for the enzyme at the beginning of the pathway that produces it, causing production of the substance to slow down or stop when there is sufficient amount.
Why is it necessary for a cell to produce one enzyme molecule for every substrate molecule that needs to be catalyzed?
Because evey substrate needs its own enzyme. Every substance has it depends upon the dissociation constant for the enzyme/substrate interaction. Some enzymes can catalyze reactions for low-affinity substrates, as long as the concentration of substrate molecules is great enough.
Why would boiling an enzyme stop it from functioning?
Destroying the active site of an enzyme would no longer allow a substrate to bind to it, therefore stopping the enzyme from working.
How does the enzyme subsrate help the enzyme work?
Substrates don't help enzymes to work. Without a substrate, an enzyme would have nothing to work on. A substrate is the substance acted on by an enzyme.
What would be the likely outcome if you increased the concentration of substrate for an enzyme in the presence of a noncompetitive inhibitor?
No change in enzyme activity would be observed.
What would happen if most biochemical reactions are catalyzed by the same enzyme?
If an enzyme produces too much of one substance in the organism, that substance may act as an inhibitor for the enzyme at the beginning of the pathway that produces it, causing production of the substance to slow down or stop when there is sufficient amount.
Why is it necessary for a cell to produce one enzyme molecule for every substrate molecule that needs to be catalyzed?
Because evey substrate needs its own enzyme. Every substance has it depends upon the dissociation constant for the enzyme/substrate interaction. Some enzymes can catalyze reactions for low-affinity substrates, as long as the concentration of substrate molecules is great enough.
Why would you expect the rate of an enzyme-catalyzed reaction to increase proportionately to enzyme concentration given an unlimited supply of substrate?
No, since the reaction reaches a max rate depending on the speed of which the Enzyme bonds to the substrate and the speed at which the enzyme catalyzes the reaction to produce enzyme and product (shown below). E + S --> ES (E - enzyme, S - substrate, P - products) ES --> E + P Thus, if each reaction rate is not equal to each other, the rate of the overall reaction is not only proportional to both the concentration of enzyme and substrate.
At what pH would the enzyme be most effective?
It depends on what type of Enzyme. Enzymes have different optimum pH depending on the environment they work in, for example and enzyme in the stomach of a human would have a pH of about 2 but an enzyme in human saliva has an optimum pH of 5.6.
What would happen if an active site was blocked by another molecule?
The substrate would be unable to bond preventing the reaction from being catalyzed.
Why would boiling an enzyme stop it from functioning?
Destroying the active site of an enzyme would no longer allow a substrate to bind to it, therefore stopping the enzyme from working.
What does enzyme catalyzed reaction mean?
To catalyze a reaction means to speed it up. Enzymes speed up reactions by bringing together the chemicals that are needed to react, rather than waiting for them to "bump into" each other by chance. If it weren't for enzymes, most reactions in living cells would happen too slowly to be useful.
How does the enzyme subsrate help the enzyme work?
Substrates don't help enzymes to work. Without a substrate, an enzyme would have nothing to work on. A substrate is the substance acted on by an enzyme.
What would be the likely outcome if you increased the concentration of substrate for an enzyme in the presence of a noncompetitive inhibitor?
No change in enzyme activity would be observed.
If an enzyme is a protein how might you change the specificity of such an enzyme?
What an enzyme does is based on its shape, therefore you would have to change it on a molecular level in order to alter its job.
How enzyme function in the liver would be affected in a person with cirrhosis?
The enzyme function would not be as effecient, causing the liver to produce more enzymes.
Would RNA polymerase be an example of a non-protein enzyme?
Yes,it is an example of non protein enzyme.
