Al-Huda Science Academy is focusing not only on short questions and long questions but also on Biology Chapter 3 MCQs Class 11. Entry Tests required a lot of effort on Multiple Choice Questions that should be of conceptual in nature. The users can participate without login to MCQs test. All MCQs are taken from the past papers of Punjab Boards. Chapter 3 of F.Sc Part 1 Biology is based on Enzymes In this chapter, students will learn about concepts of:

Working and function of enzymes in Biology.

Biology Chapter 3 MCQs Class 11



#1. If the non-protein part of enzyme is covalently bonded it is called:

#2. The detachable cofactors of an enzyme is known as:

#3. Enzyme that produces amino acid:

#4. The activation energy of the reactions is lowered by:

#5. Enzymes involved in respiration, are found in:

#6. Metals ions are related to:

#7. The vitamins are essential raw materials for the synthesis of:

#8. Coenzymes are closely related to:

#9. The non-protein part of enzyme is known as:

#10. Biologically active proteins are:

#11. Enzymes lowered down the energy of:

#12. Lock and key model was proposed by:

#13. Enzymes that are integral part of ribosome are responsible for synthesis of:

#14. All enzymes are globular:

#15. Reversible inhibitors forms weak linkages with the:

#16. Induced fit model was proposed by:

#17. Proteins like cyanide, antibiotics, anti metabolites and some drugs are examples of:

#18. All enzymes are proteins

#19. The catalytic activity of enzyme is restricted to small portion of the enzyme, known as:

#20. The reversible inhibitors have:

#21. According to lock and key model the active site is:

#22. Extreme changes in pH causes the bonds in enzyme to break resulting in the:

#23. If protein part of cofactor is covalently bonded to enzyme, it is called as:

#24. Irreversible inhibitors form which bonds with active site:


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