Regulatory sites other than the active site, present over the enzymes, are called:
Correct answer: D. Allosteric sites
- A. Active sites
- B. Binding site
- C. Catalytic groups
- D. Allosteric sites
Explanation
The correct answer is Allosteric sites. These are sites on an enzyme other than the active site where molecules can bind to regulate the enzyme's activity. Binding at an allosteric site can lead to a change in enzyme shape and function, either enhancing or inhibiting its activity. In contrast, the active site is where the substrate binds and the reaction occurs, while catalytic groups are specific residues in the active site responsible for the catalysis. Binding sites generally refer to any site where molecules can attach, but do not necessarily regulate enzyme activity.
Last updated
About Enzyme Inhibitors
Enzyme inhibitors reduce reaction rate by interfering with enzyme-substrate interaction or catalytic activity. Coverage includes reversible competitive, non-competitive and uncompetitive inhibition, the effects of inhibitor concentration on reaction rate, and why competitive inhibition can be reduced by increasing substrate concentration.
Practise Enzymes
633 free Enzymes MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A chemical substance that reacts with enzyme but is not transformed into product and thus blocking active site is called__________?
A chemical substance which can react (in place of substrate) with the enzyme but is not transformed into product/s and thus blocks the active site temporarily or permanently is called_______________?
A competitive inhibitor slows an enzyme catalysed reaction by
A substance which binds at the active site of the enzyme but does not result in the formation of the products is called________________?
Allosteric enzymes