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Q. No.Match each item in Column I with one in Column II and select the correct match from the codes given:
Column I
Column II
A.
Lyases
P.
catalyse removal of groups from substrates
by mechanisms other than hydrolysis, leaving double bonds
B.
Ligases
Q.
catalyse the linking together of 2 compounds
C.
Transferases
R.
catalyse the transfer of a group other than hydrogen
between a pair of substrates
D.
Isomerases
S.
catalyse inter-conversion of optical, geometric
or positional isomers
Codes:
A
B
C
D
1.
P
Q
R
S
2.
Q
P
R
S
3.
P
Q
S
R
4.
R
R
Q
S
by mechanisms other than hydrolysis, leaving double bonds
between a pair of substrates
or positional isomers
Subtopic: Enzymes Classification |
90%
From NCERT
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Coenzymes nicotinamide adenine dinucleotide (NAD) and NADP contain the vitamin:
| 1. | Riboflavin | 2. | Pantothenic acid |
| 3. | Niacin | 4. | Pteroylglutamic acid |
Subtopic: Enzyme Cofactors |
91%
From NCERT
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The substrate has to go through a much higher energy state or transition state:
I: if it is an exothermic or spontaneous reaction.
II: it is an endothermic or energy requiring reaction.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
I: if it is an exothermic or spontaneous reaction.
II: it is an endothermic or energy requiring reaction.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Mechanism of Enzymes |
62%
From NCERT
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When the co-factor is removed from the enzyme:
1. catalytic activity is lost
2. catalytic activity is reduced
3. catalytic activity is increased
4. catalytic activity remains same
1. catalytic activity is lost
2. catalytic activity is reduced
3. catalytic activity is increased
4. catalytic activity remains same
Subtopic: Enzyme Cofactors |
85%
From NCERT
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Polysaccharides are components of cell wall in:
I: Plants
II: Fungi
III: Eubacteria
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
I: Plants
II: Fungi
III: Eubacteria
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Carbohydrates |
61%
From NCERT
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Subtopic: Lipids |
76%
From NCERT
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A protein is imagined as a line, where:
I: the left end is represented by the first amino acid and the right end is represented by the last amino acid.
II: the first amino acid is also called as C-terminal amino acid and the last amino acid is called
the N-terminal amino acid.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
I: the left end is represented by the first amino acid and the right end is represented by the last amino acid.
II: the first amino acid is also called as C-terminal amino acid and the last amino acid is called
the N-terminal amino acid.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Proteins |
79%
From NCERT
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The number of correct statement(s) from the statements given below is/are:
1. 1
2. 2
3. 3
4. 4
| I: | Cellulose is a polymeric polysaccharide consisting of only one type of monosaccharide. |
| II: | Starch is a homopolymer. |
| III: | Inulin is a polymer of fructose. |
| IV: | In glycogen, the right end is called the reducing end, and the left end is called the non-reducing end. |
2. 2
3. 3
4. 4
Subtopic: Carbohydrates: Starch & Glycogen | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
77%
From NCERT
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Consider the given two statements:
Assertion: Lipids separate in the macromolecular fraction of a cell.
Reason: Lipids are associated with membranes in a cell.
1. Both Assertion and Reason are true but the Reason does not explain the Assertion.
2. Assertion is true but Reason is False.
3. Both Assertion and Reason are true and Reason correctly explains the Assertion.
4. Assertion is false but Reason is true.
Assertion: Lipids separate in the macromolecular fraction of a cell.
Reason: Lipids are associated with membranes in a cell.
1. Both Assertion and Reason are true but the Reason does not explain the Assertion.
2. Assertion is true but Reason is False.
3. Both Assertion and Reason are true and Reason correctly explains the Assertion.
4. Assertion is false but Reason is true.
Subtopic: Element Analysis |
From NCERT
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Among the following choose the correct epimers.
1. Glucose, galactose
2. Glucose, fructose
3. Glucose, ribose
4. Gluconic acid, glucose
1. Glucose, galactose
2. Glucose, fructose
3. Glucose, ribose
4. Gluconic acid, glucose
Subtopic: Carbohydrates |
61%
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