Home⇒ Medical Science⇒ Microbiology⇒ Enzyme reaction
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ The ability of a competitive inhibitor to bind to an active site in an allosterically controlled enzyme is __________ than the ability of a non-competitive inhibitor to bind to an active site in the same allosterically controlled enzyme. greater [other wrong options] [Discuss in forum] |
| Q2 ⇒ In the reaction, C6H12O6+ 6O2 → 6CO2 + 6H2O + energy, which component is being oxidized? C6H12O6 [other wrong options] [Discuss in forum] |
| Q3 ⇒ About 7.3 kcal/mole are released when glucose is converted to CO2 and H2O [other wrong options] [Discuss in forum] |
| Q4 ⇒ If the Keq for an enzymatic reaction is greater than 1, the reaction none of these [other wrong options] [Discuss in forum] |
| Q5 ⇒ Anthranilate synthase, the first enzyme of tryptophan biosynthesis after the branch point shows feedback inhibition and repression due to L-tryptophan [other wrong options] [Discuss in forum] |
| Q6 ⇒ An endergonic reaction is one that requires energy in order to proceed [other wrong options] [Discuss in forum] |
| Q7 ⇒ In the reaction, C6H12O6 + 6O2 → 6CO2 + 6H2O + energy, which component is being reduced? O2 [other wrong options] [Discuss in forum] |
| Q8 ⇒ Oxidation is the loss of electron [other wrong options] [Discuss in forum] |
| Q9 ⇒ The ability of Vibrio fischeri to convert chemical energy directly into radiant energy in bioluminescence is an example of __________ at work. the first law of thermodynamics [other wrong options] [Discuss in forum] |
| Q10 ⇒ Which of the following is the best evidence for the lock and key theory of enzyme action? Compounds similar in structure to the substrate inhibit enzyme activity [other wrong options] [Discuss in forum] |
| Q11 ⇒ An enzyme that is always produced, regardless of the presence of substrates or the end products, is called a constitutive enzyme [other wrong options] [Discuss in forum] |
| Q12 ⇒ If the free energy change (ΔG) in a reaction is a negative value, it indicates that the reaction releases energy [other wrong options] [Discuss in forum] |
| Q13 ⇒ Hydrogen and oxygen release enormous amounts of energy when they react. Yet, hydrogen and oxygen can be mixed together in a balloon and nothing will happen. Why? Competitive inhibitors are blocking the reaction from occurring in the active site [other wrong options] [Discuss in forum] |
| Q14 ⇒ To a living organism, which of the following has the greatest amount of available energy per molecule? ATP [other wrong options] [Discuss in forum] |
| Q15 ⇒ Adenosine triphosphate is a type of nucleotide [other wrong options] [Discuss in forum] |
| Q16 ⇒ Reduction is the gain of electron [other wrong options] [Discuss in forum] |
| Q17 ⇒ The affinity of an enzyme for its substrate, when the enzyme has a Km of 0.50 M will be __________ than the affinity of an enzyme for its substrate when the enzyme has a Km of 0.05 M. lesser [other wrong options] [Discuss in forum] |
| Q18 ⇒ Denaturation of an enzyme refers to the loss of the enzymes proper shape [other wrong options] [Discuss in forum] |
| Q19 ⇒ The ability of FADH to be oxidized is __________ than the ability of FAD to be oxidized. greater [other wrong options] [Discuss in forum] |
| Q20 ⇒ The fact that β-oxidation of fatty acids, occurs in the mitochondria whereas fatty acid synthesis occurs in the cytoplasmic matrix, is an example of regulation of enzymatic activity by the __________ mechanism. repression [other wrong options] [Discuss in forum] |
| Or |