(a) Enzymes are profeinaceous molecules. Simple enzymes are composed of only protein, while holoenzymes are composed of protein part (apoenzyme) and non-protein part (prosthetic group).
NCERT Page-159 / N-118
Biomolecules
277769
Transition state structure of the substrate formed during an enzymatic reaction is.
1 permanent but unstable.
2 transient and unstable.
3 permanent and stable.
4 transient but stable.
Explanation:
(b) Transition state structure formed during an enzymatic reaction is transient and unstable.
NCERT Page-156 / N-115
Biomolecules
277770
The effectiveness of an enzyme is affected least by
1 temperature.
2 concentration of the substrate.
3 original activation energy of the system.
4 concentration of the enzyme.
Explanation:
(c) The effectiveness of an enzyme is affected least by the original activation energy of the system. Because activation energy is the least amount of energy required to start chemical reaction.
NCERT Page-157
Biomolecules
277771
What will happen when the cofactor is removed from the enzyme?
1 Catalytic activity of the enzyme is lost.
2 Enzyme preserves in a temporarily inactive state.
3 The substurate molecules are not closely related to enzymes molecules.
4 Both (b) and (c)
Explanation:
(a) When the cofactor is removed from the enzyme, catalytic activity of the enzyme is lost. Cofactors were defined as an additional substance apart from protein and substrate that is required for enzyme activity.
(a) Enzymes are profeinaceous molecules. Simple enzymes are composed of only protein, while holoenzymes are composed of protein part (apoenzyme) and non-protein part (prosthetic group).
NCERT Page-159 / N-118
Biomolecules
277769
Transition state structure of the substrate formed during an enzymatic reaction is.
1 permanent but unstable.
2 transient and unstable.
3 permanent and stable.
4 transient but stable.
Explanation:
(b) Transition state structure formed during an enzymatic reaction is transient and unstable.
NCERT Page-156 / N-115
Biomolecules
277770
The effectiveness of an enzyme is affected least by
1 temperature.
2 concentration of the substrate.
3 original activation energy of the system.
4 concentration of the enzyme.
Explanation:
(c) The effectiveness of an enzyme is affected least by the original activation energy of the system. Because activation energy is the least amount of energy required to start chemical reaction.
NCERT Page-157
Biomolecules
277771
What will happen when the cofactor is removed from the enzyme?
1 Catalytic activity of the enzyme is lost.
2 Enzyme preserves in a temporarily inactive state.
3 The substurate molecules are not closely related to enzymes molecules.
4 Both (b) and (c)
Explanation:
(a) When the cofactor is removed from the enzyme, catalytic activity of the enzyme is lost. Cofactors were defined as an additional substance apart from protein and substrate that is required for enzyme activity.
(a) Enzymes are profeinaceous molecules. Simple enzymes are composed of only protein, while holoenzymes are composed of protein part (apoenzyme) and non-protein part (prosthetic group).
NCERT Page-159 / N-118
Biomolecules
277769
Transition state structure of the substrate formed during an enzymatic reaction is.
1 permanent but unstable.
2 transient and unstable.
3 permanent and stable.
4 transient but stable.
Explanation:
(b) Transition state structure formed during an enzymatic reaction is transient and unstable.
NCERT Page-156 / N-115
Biomolecules
277770
The effectiveness of an enzyme is affected least by
1 temperature.
2 concentration of the substrate.
3 original activation energy of the system.
4 concentration of the enzyme.
Explanation:
(c) The effectiveness of an enzyme is affected least by the original activation energy of the system. Because activation energy is the least amount of energy required to start chemical reaction.
NCERT Page-157
Biomolecules
277771
What will happen when the cofactor is removed from the enzyme?
1 Catalytic activity of the enzyme is lost.
2 Enzyme preserves in a temporarily inactive state.
3 The substurate molecules are not closely related to enzymes molecules.
4 Both (b) and (c)
Explanation:
(a) When the cofactor is removed from the enzyme, catalytic activity of the enzyme is lost. Cofactors were defined as an additional substance apart from protein and substrate that is required for enzyme activity.
(a) Enzymes are profeinaceous molecules. Simple enzymes are composed of only protein, while holoenzymes are composed of protein part (apoenzyme) and non-protein part (prosthetic group).
NCERT Page-159 / N-118
Biomolecules
277769
Transition state structure of the substrate formed during an enzymatic reaction is.
1 permanent but unstable.
2 transient and unstable.
3 permanent and stable.
4 transient but stable.
Explanation:
(b) Transition state structure formed during an enzymatic reaction is transient and unstable.
NCERT Page-156 / N-115
Biomolecules
277770
The effectiveness of an enzyme is affected least by
1 temperature.
2 concentration of the substrate.
3 original activation energy of the system.
4 concentration of the enzyme.
Explanation:
(c) The effectiveness of an enzyme is affected least by the original activation energy of the system. Because activation energy is the least amount of energy required to start chemical reaction.
NCERT Page-157
Biomolecules
277771
What will happen when the cofactor is removed from the enzyme?
1 Catalytic activity of the enzyme is lost.
2 Enzyme preserves in a temporarily inactive state.
3 The substurate molecules are not closely related to enzymes molecules.
4 Both (b) and (c)
Explanation:
(a) When the cofactor is removed from the enzyme, catalytic activity of the enzyme is lost. Cofactors were defined as an additional substance apart from protein and substrate that is required for enzyme activity.
