An enzyme isolated from E.coli breaks ester linkage between sugar and phosphate moiety in RNA molecules. This enzyme belongs to class
1. Isomerase
2. Ligase
3. Lyase
4. Hydrolase
Subtopic: Enzymes Classification |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Given below is a diagrammatic representation of a helical protein where a part of the protein is enlarged.
Identify the amino acids occurring at the N-terminal and C-terminal of the enlarged section of polypeptide respectively.
1. Serine and cysteine
2. Cysteine and tyrosine
3. Tyrosine and Glutamin acid
4. Seine and Glutamic acid
Identify the amino acids occurring at the N-terminal and C-terminal of the enlarged section of polypeptide respectively.
1. Serine and cysteine
2. Cysteine and tyrosine
3. Tyrosine and Glutamin acid
4. Seine and Glutamic acid
Subtopic: Different Amino Acids |
51%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following is not strictly a biomacromolecule?
1. Proteins
2. Lipids
3. Polysaccharides
4. Nucleic acid
1. Proteins
2. Lipids
3. Polysaccharides
4. Nucleic acid
Subtopic: Element Analysis |
95%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
A secondary metabolite that acts as a toxin is
1. Carotenoids
2. Curcumin
3. Abrin
4. Monoterpenes
1. Carotenoids
2. Curcumin
3. Abrin
4. Monoterpenes
Subtopic: Primary & Secondary Metabolites |
91%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Subtopic: Primary & Secondary Metabolites |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Peptidoglycan present in bacterial cell envelope is
1. Made up of cellulose
2. A heteropolymer
3. An oligosaccharide
4. A homopolymer
1. Made up of cellulose
2. A heteropolymer
3. An oligosaccharide
4. A homopolymer
Subtopic: Carbohydrates: Introduction |
61%
Please attempt this question first.
Hints
The most abundant protein in animal world is
1. Chitin
2. Collagen
3. Peptidoglycan
4. Hyaluronic acid
1. Chitin
2. Collagen
3. Peptidoglycan
4. Hyaluronic acid
Subtopic: Proteins | Introduction to Proteins |
95%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
The amino acids in a protein are held together by
1. Glycosidic bond
2. Phosphodiester bond
3. Peptide bond
4. Hydrogen bond
1. Glycosidic bond
2. Phosphodiester bond
3. Peptide bond
4. Hydrogen bond
Subtopic: Proteins | Introduction to Proteins |
87%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
A protein found in silk which exhibits pleated structure is
1. Flbroln
2. Haemoglobin
3. Enzyme
4, - Keratin
1. Flbroln
2. Haemoglobin
3. Enzyme
4, - Keratin
Subtopic: Proteins |
68%
Please attempt this question first.
Hints
An example of protein with quaternary structure is
1. Myoglobin
2. Haemoglobin
3. Keratin
4. All of these
1. Myoglobin
2. Haemoglobin
3. Keratin
4. All of these
Subtopic: Proteins |
77%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
© 2025 GoodEd Technologies Pvt. Ltd.