OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are unaffected by changes in temperature
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Their overall shape can change without affecting their function
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They catalyze one specific type of reaction
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They are unaffected by changes in pH
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Detailed explanation-1: -As well as being highly potent catalysts, enzymes also possess remarkable specificity in that they generally catalyse the conversion of only one type (or at most a range of similar types) of substrate molecule into product molecules.
Detailed explanation-2: -In addition, enzymes are highly specific in their action; that is, each enzyme catalyzes only one type of reaction in only one compound or a group of structurally related compounds.
Detailed explanation-3: -Answer and Explanation: The correct option is c. The rate of the reaction is greater than when the same reaction occurs in the absence of an enzyme.
Detailed explanation-4: -Each different type of enzyme will usually act on only one substrate to catalyse one biological reaction. Enzymes are specific because different enzymes have differently shaped active sites. The shape of the active site of an enzyme is complementary to the shape of its specific substrate .
Detailed explanation-5: -Enzymatic catalysis of a reaction between two substrates. The enzyme provides a template upon which the two substrates are brought together in the proper position and orientation to react with each other.