278006
At temperature near freezing point, the enzymes are
1 inactivated
2 activated
3 slightly activated
4 slightly inactivated
Explanation:
(a) Temperature affects activity of enzyme. At very low temperature (almost near freezing point) the enzymes are inactivated whereas high temperature denatures enzymes permanently. Temperature ranges for maximum functioning of enzyme is $25-40$ degree Celsius.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278007
A pocket or crevice of an enzyme into which substrate fits, is called]#
1 Active site
2 Apoenzyme
3 Epitope
4 Coenzyme
Explanation:
(a) An active site of an enzyme is a crevice or pocket into which the substrate fits. Thus enzymes, through their active site, catalyse reactions at a high rate.
BIOMOLECULES(NCERT)
278008
Enzymes are sensitive to
1 light
2 $\text{pH}$
3 temperature
4 both (b) and (c)
Explanation:
(d) Enzymes are sensitive to temperature, enzyme concentration, substrate concentration, product concentration, activations, inhibitors and $\text{pH}$. Each enzyme shows its highest activity at a particular temperature and $\text{pH}$ called the optimum temperature and $\text{pH}$ respectively. Activity declines both below and above the optimum value.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278009
Mark the correct statement
1 Most of the enzymes get damaged above${{40}^{\circ }}\text{C}$
2 The rate of chemical reaction decreases by half for every${{10}^{\circ }}\text{C}$ change in either direction
3 The enzyme carbonic anhydrase accelerates the rate of hydration of$\text{C}{{\text{O}}_{2}}$ by about 10 million times
4 All of these
Explanation:
(d) All the given statements are correct
NCERT Page-154 / N-113
BIOMOLECULES(NCERT)
278010
Which of the following is wrongly matched?
1 Ribożyme - Proteinaceous in nature.
2 Apoenzyme - The protein part of enzyme.
3 Co-enzyme - Loosely attached organic cofactor of haloenzyme
4 Co-factors - Non-protein part of haloenzyme.
Explanation:
(a) Ribozymes (ribonucleic acid enzymes) are also called catalytic RNA. They are RNA molecules capable of catalysing specific biochemical reactions, similar
to the act of protein enzymes. Ribozyme, discovered in 1982, demonstrated that RNA can be both genetic material (like DNA) and a biological catalyst (like protein enzymes). Examples of ribozymes include the hammerhead ribozyme, the VS ribozyme, Leadzyme and the hairpin ribozyme.
278006
At temperature near freezing point, the enzymes are
1 inactivated
2 activated
3 slightly activated
4 slightly inactivated
Explanation:
(a) Temperature affects activity of enzyme. At very low temperature (almost near freezing point) the enzymes are inactivated whereas high temperature denatures enzymes permanently. Temperature ranges for maximum functioning of enzyme is $25-40$ degree Celsius.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278007
A pocket or crevice of an enzyme into which substrate fits, is called]#
1 Active site
2 Apoenzyme
3 Epitope
4 Coenzyme
Explanation:
(a) An active site of an enzyme is a crevice or pocket into which the substrate fits. Thus enzymes, through their active site, catalyse reactions at a high rate.
BIOMOLECULES(NCERT)
278008
Enzymes are sensitive to
1 light
2 $\text{pH}$
3 temperature
4 both (b) and (c)
Explanation:
(d) Enzymes are sensitive to temperature, enzyme concentration, substrate concentration, product concentration, activations, inhibitors and $\text{pH}$. Each enzyme shows its highest activity at a particular temperature and $\text{pH}$ called the optimum temperature and $\text{pH}$ respectively. Activity declines both below and above the optimum value.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278009
Mark the correct statement
1 Most of the enzymes get damaged above${{40}^{\circ }}\text{C}$
2 The rate of chemical reaction decreases by half for every${{10}^{\circ }}\text{C}$ change in either direction
3 The enzyme carbonic anhydrase accelerates the rate of hydration of$\text{C}{{\text{O}}_{2}}$ by about 10 million times
4 All of these
Explanation:
(d) All the given statements are correct
NCERT Page-154 / N-113
BIOMOLECULES(NCERT)
278010
Which of the following is wrongly matched?
1 Ribożyme - Proteinaceous in nature.
2 Apoenzyme - The protein part of enzyme.
3 Co-enzyme - Loosely attached organic cofactor of haloenzyme
4 Co-factors - Non-protein part of haloenzyme.
Explanation:
(a) Ribozymes (ribonucleic acid enzymes) are also called catalytic RNA. They are RNA molecules capable of catalysing specific biochemical reactions, similar
to the act of protein enzymes. Ribozyme, discovered in 1982, demonstrated that RNA can be both genetic material (like DNA) and a biological catalyst (like protein enzymes). Examples of ribozymes include the hammerhead ribozyme, the VS ribozyme, Leadzyme and the hairpin ribozyme.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
BIOMOLECULES(NCERT)
278006
At temperature near freezing point, the enzymes are
1 inactivated
2 activated
3 slightly activated
4 slightly inactivated
Explanation:
(a) Temperature affects activity of enzyme. At very low temperature (almost near freezing point) the enzymes are inactivated whereas high temperature denatures enzymes permanently. Temperature ranges for maximum functioning of enzyme is $25-40$ degree Celsius.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278007
A pocket or crevice of an enzyme into which substrate fits, is called]#
1 Active site
2 Apoenzyme
3 Epitope
4 Coenzyme
Explanation:
(a) An active site of an enzyme is a crevice or pocket into which the substrate fits. Thus enzymes, through their active site, catalyse reactions at a high rate.
BIOMOLECULES(NCERT)
278008
Enzymes are sensitive to
1 light
2 $\text{pH}$
3 temperature
4 both (b) and (c)
Explanation:
(d) Enzymes are sensitive to temperature, enzyme concentration, substrate concentration, product concentration, activations, inhibitors and $\text{pH}$. Each enzyme shows its highest activity at a particular temperature and $\text{pH}$ called the optimum temperature and $\text{pH}$ respectively. Activity declines both below and above the optimum value.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278009
Mark the correct statement
1 Most of the enzymes get damaged above${{40}^{\circ }}\text{C}$
2 The rate of chemical reaction decreases by half for every${{10}^{\circ }}\text{C}$ change in either direction
3 The enzyme carbonic anhydrase accelerates the rate of hydration of$\text{C}{{\text{O}}_{2}}$ by about 10 million times
4 All of these
Explanation:
(d) All the given statements are correct
NCERT Page-154 / N-113
BIOMOLECULES(NCERT)
278010
Which of the following is wrongly matched?
1 Ribożyme - Proteinaceous in nature.
2 Apoenzyme - The protein part of enzyme.
3 Co-enzyme - Loosely attached organic cofactor of haloenzyme
4 Co-factors - Non-protein part of haloenzyme.
Explanation:
(a) Ribozymes (ribonucleic acid enzymes) are also called catalytic RNA. They are RNA molecules capable of catalysing specific biochemical reactions, similar
to the act of protein enzymes. Ribozyme, discovered in 1982, demonstrated that RNA can be both genetic material (like DNA) and a biological catalyst (like protein enzymes). Examples of ribozymes include the hammerhead ribozyme, the VS ribozyme, Leadzyme and the hairpin ribozyme.
278006
At temperature near freezing point, the enzymes are
1 inactivated
2 activated
3 slightly activated
4 slightly inactivated
Explanation:
(a) Temperature affects activity of enzyme. At very low temperature (almost near freezing point) the enzymes are inactivated whereas high temperature denatures enzymes permanently. Temperature ranges for maximum functioning of enzyme is $25-40$ degree Celsius.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278007
A pocket or crevice of an enzyme into which substrate fits, is called]#
1 Active site
2 Apoenzyme
3 Epitope
4 Coenzyme
Explanation:
(a) An active site of an enzyme is a crevice or pocket into which the substrate fits. Thus enzymes, through their active site, catalyse reactions at a high rate.
BIOMOLECULES(NCERT)
278008
Enzymes are sensitive to
1 light
2 $\text{pH}$
3 temperature
4 both (b) and (c)
Explanation:
(d) Enzymes are sensitive to temperature, enzyme concentration, substrate concentration, product concentration, activations, inhibitors and $\text{pH}$. Each enzyme shows its highest activity at a particular temperature and $\text{pH}$ called the optimum temperature and $\text{pH}$ respectively. Activity declines both below and above the optimum value.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278009
Mark the correct statement
1 Most of the enzymes get damaged above${{40}^{\circ }}\text{C}$
2 The rate of chemical reaction decreases by half for every${{10}^{\circ }}\text{C}$ change in either direction
3 The enzyme carbonic anhydrase accelerates the rate of hydration of$\text{C}{{\text{O}}_{2}}$ by about 10 million times
4 All of these
Explanation:
(d) All the given statements are correct
NCERT Page-154 / N-113
BIOMOLECULES(NCERT)
278010
Which of the following is wrongly matched?
1 Ribożyme - Proteinaceous in nature.
2 Apoenzyme - The protein part of enzyme.
3 Co-enzyme - Loosely attached organic cofactor of haloenzyme
4 Co-factors - Non-protein part of haloenzyme.
Explanation:
(a) Ribozymes (ribonucleic acid enzymes) are also called catalytic RNA. They are RNA molecules capable of catalysing specific biochemical reactions, similar
to the act of protein enzymes. Ribozyme, discovered in 1982, demonstrated that RNA can be both genetic material (like DNA) and a biological catalyst (like protein enzymes). Examples of ribozymes include the hammerhead ribozyme, the VS ribozyme, Leadzyme and the hairpin ribozyme.
278006
At temperature near freezing point, the enzymes are
1 inactivated
2 activated
3 slightly activated
4 slightly inactivated
Explanation:
(a) Temperature affects activity of enzyme. At very low temperature (almost near freezing point) the enzymes are inactivated whereas high temperature denatures enzymes permanently. Temperature ranges for maximum functioning of enzyme is $25-40$ degree Celsius.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278007
A pocket or crevice of an enzyme into which substrate fits, is called]#
1 Active site
2 Apoenzyme
3 Epitope
4 Coenzyme
Explanation:
(a) An active site of an enzyme is a crevice or pocket into which the substrate fits. Thus enzymes, through their active site, catalyse reactions at a high rate.
BIOMOLECULES(NCERT)
278008
Enzymes are sensitive to
1 light
2 $\text{pH}$
3 temperature
4 both (b) and (c)
Explanation:
(d) Enzymes are sensitive to temperature, enzyme concentration, substrate concentration, product concentration, activations, inhibitors and $\text{pH}$. Each enzyme shows its highest activity at a particular temperature and $\text{pH}$ called the optimum temperature and $\text{pH}$ respectively. Activity declines both below and above the optimum value.
NCERT Page-157 / N-116
BIOMOLECULES(NCERT)
278009
Mark the correct statement
1 Most of the enzymes get damaged above${{40}^{\circ }}\text{C}$
2 The rate of chemical reaction decreases by half for every${{10}^{\circ }}\text{C}$ change in either direction
3 The enzyme carbonic anhydrase accelerates the rate of hydration of$\text{C}{{\text{O}}_{2}}$ by about 10 million times
4 All of these
Explanation:
(d) All the given statements are correct
NCERT Page-154 / N-113
BIOMOLECULES(NCERT)
278010
Which of the following is wrongly matched?
1 Ribożyme - Proteinaceous in nature.
2 Apoenzyme - The protein part of enzyme.
3 Co-enzyme - Loosely attached organic cofactor of haloenzyme
4 Co-factors - Non-protein part of haloenzyme.
Explanation:
(a) Ribozymes (ribonucleic acid enzymes) are also called catalytic RNA. They are RNA molecules capable of catalysing specific biochemical reactions, similar
to the act of protein enzymes. Ribozyme, discovered in 1982, demonstrated that RNA can be both genetic material (like DNA) and a biological catalyst (like protein enzymes). Examples of ribozymes include the hammerhead ribozyme, the VS ribozyme, Leadzyme and the hairpin ribozyme.