BIOCHEMISTRY
ENZYMES AND METABOLISM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The rate of reaction decreased because the reactants were diluted by the extra substrate solution.
|
|
|
The rate of reaction increased because the substrates collide more frequently with the enzymes.
|
|
|
The rate of reaction decreased because the enzyme-to-substrate ratio decreased.
|
|
|
The rate of reaction increased because there are more active sites to bind with more substrates.
|
Detailed explanation-1: -Enzyme concentration: Increasing enzyme concentration will speed up the reaction, as long as there is substrate available to bind to. Once all of the substrate is bound, the reaction will no longer speed up, since there will be nothing for additional enzymes to bind to.
Detailed explanation-2: -By increasing the substrate concentration, the rate of reaction will increase due to the likelihood that the number of enzyme-substrate complexes will increase; this occurs until the enzyme concentration becomes the limiting factor.
Detailed explanation-3: -During an enzymatic reaction, what happens to the enzyme? The enzyme and the substrate form a TEMPORARY complex. What is a metabolic reaction called that involves one reaction releasing energy to provide energy for a second reaction that requires energy?