NURSING EXAM QUESTIONS
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The active site is for the attachment of the substrate.
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The active site changes to fit any available substrate.
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The active site determines how many reactions will be catalyzed.
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The active site determines how fast the reaction is allowed to occur.
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Detailed explanation-1: -An active site can catalyse a reaction repeatedly as residues are not altered at the end of the reaction (they may change during the reaction, but are regenerated by the end). This process is achieved by lowering the activation energy of the reaction, so more substrates have enough energy to undergo reaction.
Detailed explanation-2: -Answer and Explanation: The active site of the enzyme is what attaches to the substrate and what changes the substrate’s structure, making it more reactive. Active sites are highly specific, only allowing one/a few substrates to bind with them.
Detailed explanation-3: -active site: The active site is the part of an enzyme to which substrates bind and where a reaction is catalyzed.