10 June 2013

Biology Mcqs XI [Enzymes] Online Test 2

Biology Mcqs XI [Enzymes] MCQS Online Test - 2

Biology Aptitude Test. 22 More Questions from Chapter # 03 Enzymes.
Q1. The inorganic ions which act as a prosthetic group in holoenzymes are called:
Q2. The organic prosthetic groups in holoenzymes are called
Q3. A co-enzyme constitutes:
Q4. Co-enzymes include:
Q5. Co-factors include:
Q6. Concerning temperature affecting enzyme activity, which of the following statement is correct?
Q7. Concerning enzyme activity at O°C, which of the following statement is correct?
Q8. Sometimes, the activator functions
Q9. Most vitamins are:
Q10. Magnesium (Mg+2) is an inorganic activators for the enzyme:
Q11. Zinc (Zn+2) is an inorganic activator for the enzyme:
Q12. Substances which decrease the activity of enzyme are called:
Q13. Non-competitive inhibitor is one which:
Q14. Competitive Inhibitor is one which:
Q15. In non-competitive inhibition, the binding site other than the active site is called:
Q16. The pesticides DDT and parathion are inhibitors of key enzymes in the
Q17. "When the product is in abundance, it binds competitively with enzyme's active site, as the product is used up, more product can be produced", this is an example of:
Q18. Concerning effects of Radiation on enzymes:
Q19. Enzymes can be denatured at:
Q20. Biological control for the regulation of most of the enzyme is provided by:
Q21. Molecule binds to the active site of an enzyme is:
Q22. Penicillin blocks the active site of an enzyme that many bacteria use for:
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