277809
Assertion : Enzymes have active sites and substrates have reactive sites on their surface respectively.
Reason : Active and reactive sites push the enzyme and substrate molecules away from each other.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Enzyme have specific site for substrates called active site and substrate also have reactive site. These site are complementary to each other, during reaction these two sites interact with each other.
NCERT Page-154 / N-112
Biomolecules
277810
Assertion : Lipids are generally insoluble in water.
Reason : Palmitic acid has 16 carbon atoms.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Vegetable oils and fats are present in plants in insoluble form. They are extracted mostly from seeds. In several cereals, they are obtained from embryo. Olive and palm oils are obtained from flesly pericarp of the fruit. Sometimes oils are also extracted from roots, stem and leaves.
NCERT Page-144 / N-106
Biomolecules
277811
Assertion : Human diet should compulsorily contain glycine, serine and tyrosine.
Reason : Essential amino acids are not synthesised in the human body.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(c) Essential amino acids are those which are taken from food and not synthesised in the body whereas non-essential amino acids need not be supplied in the diet and are synthesised in the body. Glycine, serine and tyrosine are non-essential amino acids.
NCERT Page-147 / N-109
Biomolecules
277812
Assertion : Unsaturated fats have $\text{C}=\text{C}$ compared with the saturated fats.
Reason : Saturated fats have only single bonds in their structure.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Compound having double bond in their structure are more unstable compound in comparison to single bond holder compounds. Unsaturated fats have double bonds in their structures, are more reactive than saturated fats.
NCERT Page-144 / N-106
Biomolecules
277813
Assertion : Coenzymes serve as co-factors in a number of different enzyme catalysed reactions.
Reason : Coenzymes and prosthetic groups are cofactors. I
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Cofactor may be inorganic or organic in nature. Organic cofactors are of two types- coenzymes and prosthetic groups. Coenzymes are easily separable nonprotein organic cofactors. Prosthetic groups are nonprotein organic cofactors firmly attached to apoenzymes (protein part of enzyme).
277809
Assertion : Enzymes have active sites and substrates have reactive sites on their surface respectively.
Reason : Active and reactive sites push the enzyme and substrate molecules away from each other.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Enzyme have specific site for substrates called active site and substrate also have reactive site. These site are complementary to each other, during reaction these two sites interact with each other.
NCERT Page-154 / N-112
Biomolecules
277810
Assertion : Lipids are generally insoluble in water.
Reason : Palmitic acid has 16 carbon atoms.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Vegetable oils and fats are present in plants in insoluble form. They are extracted mostly from seeds. In several cereals, they are obtained from embryo. Olive and palm oils are obtained from flesly pericarp of the fruit. Sometimes oils are also extracted from roots, stem and leaves.
NCERT Page-144 / N-106
Biomolecules
277811
Assertion : Human diet should compulsorily contain glycine, serine and tyrosine.
Reason : Essential amino acids are not synthesised in the human body.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(c) Essential amino acids are those which are taken from food and not synthesised in the body whereas non-essential amino acids need not be supplied in the diet and are synthesised in the body. Glycine, serine and tyrosine are non-essential amino acids.
NCERT Page-147 / N-109
Biomolecules
277812
Assertion : Unsaturated fats have $\text{C}=\text{C}$ compared with the saturated fats.
Reason : Saturated fats have only single bonds in their structure.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Compound having double bond in their structure are more unstable compound in comparison to single bond holder compounds. Unsaturated fats have double bonds in their structures, are more reactive than saturated fats.
NCERT Page-144 / N-106
Biomolecules
277813
Assertion : Coenzymes serve as co-factors in a number of different enzyme catalysed reactions.
Reason : Coenzymes and prosthetic groups are cofactors. I
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Cofactor may be inorganic or organic in nature. Organic cofactors are of two types- coenzymes and prosthetic groups. Coenzymes are easily separable nonprotein organic cofactors. Prosthetic groups are nonprotein organic cofactors firmly attached to apoenzymes (protein part of enzyme).
277809
Assertion : Enzymes have active sites and substrates have reactive sites on their surface respectively.
Reason : Active and reactive sites push the enzyme and substrate molecules away from each other.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Enzyme have specific site for substrates called active site and substrate also have reactive site. These site are complementary to each other, during reaction these two sites interact with each other.
NCERT Page-154 / N-112
Biomolecules
277810
Assertion : Lipids are generally insoluble in water.
Reason : Palmitic acid has 16 carbon atoms.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Vegetable oils and fats are present in plants in insoluble form. They are extracted mostly from seeds. In several cereals, they are obtained from embryo. Olive and palm oils are obtained from flesly pericarp of the fruit. Sometimes oils are also extracted from roots, stem and leaves.
NCERT Page-144 / N-106
Biomolecules
277811
Assertion : Human diet should compulsorily contain glycine, serine and tyrosine.
Reason : Essential amino acids are not synthesised in the human body.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(c) Essential amino acids are those which are taken from food and not synthesised in the body whereas non-essential amino acids need not be supplied in the diet and are synthesised in the body. Glycine, serine and tyrosine are non-essential amino acids.
NCERT Page-147 / N-109
Biomolecules
277812
Assertion : Unsaturated fats have $\text{C}=\text{C}$ compared with the saturated fats.
Reason : Saturated fats have only single bonds in their structure.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Compound having double bond in their structure are more unstable compound in comparison to single bond holder compounds. Unsaturated fats have double bonds in their structures, are more reactive than saturated fats.
NCERT Page-144 / N-106
Biomolecules
277813
Assertion : Coenzymes serve as co-factors in a number of different enzyme catalysed reactions.
Reason : Coenzymes and prosthetic groups are cofactors. I
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Cofactor may be inorganic or organic in nature. Organic cofactors are of two types- coenzymes and prosthetic groups. Coenzymes are easily separable nonprotein organic cofactors. Prosthetic groups are nonprotein organic cofactors firmly attached to apoenzymes (protein part of enzyme).
277809
Assertion : Enzymes have active sites and substrates have reactive sites on their surface respectively.
Reason : Active and reactive sites push the enzyme and substrate molecules away from each other.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Enzyme have specific site for substrates called active site and substrate also have reactive site. These site are complementary to each other, during reaction these two sites interact with each other.
NCERT Page-154 / N-112
Biomolecules
277810
Assertion : Lipids are generally insoluble in water.
Reason : Palmitic acid has 16 carbon atoms.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Vegetable oils and fats are present in plants in insoluble form. They are extracted mostly from seeds. In several cereals, they are obtained from embryo. Olive and palm oils are obtained from flesly pericarp of the fruit. Sometimes oils are also extracted from roots, stem and leaves.
NCERT Page-144 / N-106
Biomolecules
277811
Assertion : Human diet should compulsorily contain glycine, serine and tyrosine.
Reason : Essential amino acids are not synthesised in the human body.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(c) Essential amino acids are those which are taken from food and not synthesised in the body whereas non-essential amino acids need not be supplied in the diet and are synthesised in the body. Glycine, serine and tyrosine are non-essential amino acids.
NCERT Page-147 / N-109
Biomolecules
277812
Assertion : Unsaturated fats have $\text{C}=\text{C}$ compared with the saturated fats.
Reason : Saturated fats have only single bonds in their structure.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Compound having double bond in their structure are more unstable compound in comparison to single bond holder compounds. Unsaturated fats have double bonds in their structures, are more reactive than saturated fats.
NCERT Page-144 / N-106
Biomolecules
277813
Assertion : Coenzymes serve as co-factors in a number of different enzyme catalysed reactions.
Reason : Coenzymes and prosthetic groups are cofactors. I
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Cofactor may be inorganic or organic in nature. Organic cofactors are of two types- coenzymes and prosthetic groups. Coenzymes are easily separable nonprotein organic cofactors. Prosthetic groups are nonprotein organic cofactors firmly attached to apoenzymes (protein part of enzyme).
277809
Assertion : Enzymes have active sites and substrates have reactive sites on their surface respectively.
Reason : Active and reactive sites push the enzyme and substrate molecules away from each other.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Enzyme have specific site for substrates called active site and substrate also have reactive site. These site are complementary to each other, during reaction these two sites interact with each other.
NCERT Page-154 / N-112
Biomolecules
277810
Assertion : Lipids are generally insoluble in water.
Reason : Palmitic acid has 16 carbon atoms.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Vegetable oils and fats are present in plants in insoluble form. They are extracted mostly from seeds. In several cereals, they are obtained from embryo. Olive and palm oils are obtained from flesly pericarp of the fruit. Sometimes oils are also extracted from roots, stem and leaves.
NCERT Page-144 / N-106
Biomolecules
277811
Assertion : Human diet should compulsorily contain glycine, serine and tyrosine.
Reason : Essential amino acids are not synthesised in the human body.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(c) Essential amino acids are those which are taken from food and not synthesised in the body whereas non-essential amino acids need not be supplied in the diet and are synthesised in the body. Glycine, serine and tyrosine are non-essential amino acids.
NCERT Page-147 / N-109
Biomolecules
277812
Assertion : Unsaturated fats have $\text{C}=\text{C}$ compared with the saturated fats.
Reason : Saturated fats have only single bonds in their structure.
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(a) Compound having double bond in their structure are more unstable compound in comparison to single bond holder compounds. Unsaturated fats have double bonds in their structures, are more reactive than saturated fats.
NCERT Page-144 / N-106
Biomolecules
277813
Assertion : Coenzymes serve as co-factors in a number of different enzyme catalysed reactions.
Reason : Coenzymes and prosthetic groups are cofactors. I
1 Both (A) and (R) are correct but (R) is not the correct explanation of(A)
2 (A) is correct but (R) is not correct
3 (A) is not correct but (R) is correct
4 Both (A) and (R) are correct and (R) is the correct explanation of(A)
Explanation:
(b) Cofactor may be inorganic or organic in nature. Organic cofactors are of two types- coenzymes and prosthetic groups. Coenzymes are easily separable nonprotein organic cofactors. Prosthetic groups are nonprotein organic cofactors firmly attached to apoenzymes (protein part of enzyme).
