Given below is a schematic metabolic pathway. In an experiment, the concentration of enzyme 1 was increased but the concentration of enzymes 2 and 3 were kept constant. What would happen to the rate of production of D?

1. it would go down
2. it would go up
3. it would stay the same
4. it would stop

Subtopic:  Enzyme Catalysis |
 71%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

The graph shown below shows the effect of a certain factor on the rate of a reaction catalyzed by an enzyme. The X-axis would show the said factor and that will be:

1. substrate concentration 2. pH
3. enzyme concentration 4. temperature
Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 57%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


In the following graph, the X-axis will show:

 

1. substrate concentration
2. enzyme concentration
3. pH
4. enzyme concentration or substrate concentration

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

advertisementadvertisement

The rate of enzyme action decreases at higher temperature [after a certain value] because the increased heat
1. changes the pH of the system
2. alters the active site of the enzyme
3. neutralizes the acids and bases in the system
4. increases the concentration of the enzyme

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 81%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


The "lock and key hypothesis", given be Emil Fischer, attempts to explain the mechanism of:
1. denaturation of enzyme proteins
2. the formation of peptide binds
3. sharing of electrons
4. enzyme specificity

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 85%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

At about \(0^\circ C\) , most enzymes are
1. inactive
2. active
3. destroyed
4. replicated

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 92%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


advertisementadvertisement

If an active-site directed inhibitor is present in the medium, the curve that will represent the progress of the chemical reaction will be shown by the letter:

1. D 2. C
3. A 4. B
Subtopic:  Enzyme Inhibition |

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

If an non active-site directed inhibitor is present in the medium, the curve that will represent the progress of the chemical reaction will be shown by the letter:

 

1. D
2. C
3. B
4. A

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 52%

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


Which of the following will fit in the description of a competitive enzyme inhibitor?
1. a highly reactive compound.
2. a metal ion such as Hg2+ or Pb2+.
3. structurally similar to the substrate.
4. water insoluble.

Subtopic:  Enzyme Inhibition |
 90%
From NCERT

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.


advertisementadvertisement

A non-competitive inhibitor of an enzyme catalyzed reaction
1. binds to the Michaelis complex (ES).
2. increases Vmax.
3. is without effect at saturating substrate concentrations.
4. can actually increase reaction velocity in rare cases.

Subtopic:  Enzyme Inhibition |

To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.

Hints