NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Allosteric Enzyme Multiple Choice Questions
MCQs on Allosteric Enzyme :
1. The control and regulation of biological processes involve some enzymes. They are known as
(a) inhibitors
(b) regulators
(c) allosteric enzymes
(d) activators
Answer
Answer: (c)
2. What are the non-substrate molecules binding to the allosteric sites called?
(a) allosteric substrate
(b) reactants
(c) allosteric modulators
(d) inhibitors
Answer
Answer: (c)
3. Allosteric enzymes are
(a) smaller than simple enzymes
(b) larger than simple enzymes
(c) smaller than simple enzymes but not complex
(d) larger and more complex than simple enzyme
Answer
Answer: (d)
4. Allosteric enzymes consist of several
(a) polypeptide chains
(b) inhibitors
(c) temperature ranges
(d) active sites
Answer
Answer: (a)
5. Allosteric enzymes possess
(a) Three types of allosteric sites
(b) Active site and three types of allosteric sites
(c) Active site and two types of allosteric sites
(d) Active site and an allosteric site
Answer
Answer: (d)
6. Enzymes that are involved in the feedback inhibition are known as
(a) Apoenzymes
(b) Holoenzymes
(c) Allosteric enzymes
(d) Coenzymes
Answer
Answer: (c)
7. Blocking of enzyme action by blocking its active sites is
(a) feedback inhibition
(b) allosteric inhibition
(c) competitive inhibition
(d) non-competitive inhibition
Answer
Answer: (c)
8. The “Lock and key” theory of enzyme action was put forward by
(a) Koshland
(b) Fischer
(c) Kuhne
(d) Arrhenius
Answer
Answer: (b)
9. The fastest enzyme is
(a) carbonic anhydrase
(b) pepsin
(c) DNA polymerase
(d) DNA gyrase
Answer
Answer: (a)
10. The allosteric enzymes on the top of active sites contain
(a) substrate
(b) inhibitors
(c) polypeptide chains
(d) allosteric site
Answer
Answer: (d)