MCQ Questions for Class 12 Chemistry Chapter 14 Biomolecules Part-2 with Answers

MCQ Questions for Class 12 Chemistry Chapter 14 Biomolecules Part-2 with Answers 

MCQ Questions for Class12 Chemistry Chapter 14 Biomolecules Part-2

Biomolecules Part-2 Class 12 Chemistry MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 12 Chemistry Chapter 14 Biomolecules Part-2 with Answers Pdf free download. MCQ Questions for Class 12 Chemistry with Answers were prepared based on the latest exam pattern. We have Provided Biomolecules Part-2 Class 12 Chemistry MCQs Questions with Answers to help students understand the concept very well.

Class 12 Chemistry Chapter 14 Quiz

Class 12 Chemistry Chapter 14 MCQ Online Test


You can refer to NCERT Solutions for Class 12 Chemistry Chapter 14 Biomolecules Part-2 to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Biomolecules Part-2 Class 12 Chemistry MCQ online test

Q1. In cellulose, D-glucose units are joined by
A.α-1, 4 glycosidic linkage
B.β-1, 6 glycosidic linkage
C.β-1, 4 glycosidic linkage
D.peptide linkage
Ans: β-1, 4 glycosidic linkage
Q2. The anomeric carbon in D (+) glucose is
A.C-1 carbon
B.C-2 carbon
C.C-5 carbon
D.C-6 carbon
Ans: C-1 carbon
Q3. Glucose MCQ Questions for Class 12 Chemistry Chapter 14 Biomolecules with Answers Product is
A.hexanoic acid
B.gluconic acid
C.saccharic acid
D.bromohexane
Ans: gluconic acid
Q4. How many C-atoms are there is a pyranose ring?
A.3
B.5
C.6
D.7
Ans: 6
Q5. Cellulose is a
A.hexapolysaccharide
B.pentapolysaccharide
C.tripolysaccharide
D.None of these
Ans: None of these
Q6. The letter ‘D’ in carbohydrates signifies
A.dextrorotatory
B.configuration
C.diamagnetic nature
D.mode of synthesis
Ans: configuration
Q7. A diabetic person carries a packet of glucose with him always, because
A.glucose increases the blood sugar level slowly
B.glucose reduces the blood sugar level
C.glucose increases the blood sugar level almost instantaneously
D.glucose reduces the blood sugar level slowly
Ans: glucose increases the blood sugar level almost instantaneously
Q8. Among the naturally occurring carbohydrates, furanose ring is found in the
A.Glucose unit of cane sugar
B.Glucose unit of cellulose
C.Fructose unit of cane sugar
D.Galactose unit of lactose
Ans: Fructose unit of cane sugar
Q9. The given structure (I) and (II) represent configuration of the simplest sugar glyceraldehyde. Which of the following statements is not correct for the structures?
MCQ Questions for Class 12 Chemistry Chapter 14 Biomolecules with Answers
A.I represents D-form while II represents L-form of glyceraldehyde
B.The sugars having same configuration as D- glyceraldehyde are designated as D-sugars
C.Natural glucose and fructose are D-forms
D.D is dextrorotatory while L is laevorotatory enatiomer
Ans: D is dextrorotatory while L is laevorotatory enatiomer
Q10. Amino acids generally exist in the form of Z witter ions. This means they contain
A.Basic – NH2 group and acidic – COOH group
B.The basic – NH3 group and acidic – COO group
C.Basic -NH2 and acidic – H+ group
D.Basic – COO group and acidic – NH3 group
Ans: Basic – COO group and acidic – NH3 group
Q11. Globular proteins are present in
A.blood
B.eggs
C.milk
D.all of these
Ans: all of these
Q12. Which one of the amino acids can be synthesised in the body?
A.Alanine
B.Lysine
C.Valine
D.Histidine
Ans: Alanine
Q13. Which of the following is not true about amino acids?
A.They are constituents of all proteins
B.Alanine having one amino and one carboxylic group
C.Most naturally occurring amino acids have D-configuration
D.Glycine is the only naturally occuring amino acid which is optically inactive.
Ans: Most naturally occurring amino acids have D-configuration
Q14. A compound which contains both ………… and ………… is called amino acid. The amino acids is polypeptide chain are joined by ………/ bonds.
A.amino, carboxylic group, ester
B.amino, carboxylic group, peptide
C.nitrogen, carbon, glycosidic
D.hydroxy, carboxylic group, peptide
Ans: amino, carboxylic group, peptide
Q15. Denaturation of protein leads to loss of its biological activity by
A.formation of amino acids
B.loss of primary structure
C.loss of both primary and secondary structure
D.loss of both secondary and tertiary structures
Ans: loss of both secondary and tertiary structures
Q16. Proteins are condensation polymers of
A.α-amino acids
B.β-amino acids
C.α-hydroxy acids
D.β-hydroxy acids
Ans: α-amino acids
Q17. Mark the wrong statement about denaturation of proteins
A.The primary structure of the protein does not change
B.Globular proteins are converted into fibrous proteins
C.Fibrous proteins are converted into globular proteins
D.The biological activity of the protein is destroyed
Ans: Fibrous proteins are converted into globular proteins
Q18. In fibrous proteins, polypeptide chains are held together
A.van der waals forces
B.electrostatic forces of attraction
C.hydrogen bonds
D.covalent bonds
Ans: hydrogen bonds
Q19. Which type of interactions are responsible for making the a-helix structure stable?
A.Peptide bonds between -NH2 and -CO groups of adjacent carbon chain
B.Hydrogen bonds between -NH of amino acid in the one turn with -CO of amino acid to adjacent turn
C.-OH group of one amino acid with -CO group of other amino acid on the turn
D.Hydrogen bonds between adjacent amino acids
Ans: Hydrogen bonds between -NH of amino acid in the one turn with -CO of amino acid to adjacent turn
Q20. Secondary structure of protein refers to
A.sequence of amino acids in polypeptide chain
B.bonds between alternate polypeptide chains
C.folding patterns of polypeptide chain
D.bonding between NH\(_{3}^{+}\) and COO of two peptides
Ans: folding patterns of polypeptide chain

MCQ Questions for Class 12 Chemistry


    MCQ Questions for Class 12 Chemistry Chapter 1 The Solid State Part-1
    MCQ Questions for Class 12 Chemistry Chapter 1 The Solid State Part-2
    MCQ Questions for Class 12 Chemistry Chapter 2 Solutions Part-1
    MCQ Questions for Class 12 Chemistry Chapter 2 Solutions Part-2
    MCQ Questions for Class 12 Chemistry Chapter 3 Electrochemistry
    MCQ Questions for Class 12 Chemistry Chapter 4 Chemical Kinetics Part-1
    MCQ Questions for Class 12 Chemistry Chapter 4 Chemical Kinetics Part-2
    MCQ Questions for Class 12 Chemistry Chapter 5 Surface Chemistry Part-1
    MCQ Questions for Class 12 Chemistry Chapter 5 Surface Chemistry Part-2
    MCQ Questions for Class 12 Chemistry Chapter 6 General Principles and Processes of Isolation of Elements Part-1
    MCQ Questions for Class 12 Chemistry Chapter 6 General Principles and Processes of Isolation of Elements Part-2
    MCQ Questions for Class 12 Chemistry Chapter 7 The p-Block Elements Part-1
    MCQ Questions for Class 12 Chemistry Chapter 7 The p-Block Elements Part-2
    MCQ Questions for Class 12 Chemistry Chapter 8 The d-and f-Block Elements Part-1
    MCQ Questions for Class 12 Chemistry Chapter 8 The d-and f-Block Elements Part-2
    MCQ Questions for Class 12 Chemistry Chapter 9 Coordination Compounds Part-1
    MCQ Questions for Class 12 Chemistry Chapter 9 Coordination Compounds Part-2
    MCQ Questions for Class 12 Chemistry Chapter 10 Haloalkanes and Haloarenes Part-1
    MCQ Questions for Class 12 Chemistry Chapter 10 Haloalkanes and Haloarenes Part-2
    MCQ Questions for Class 12 Chemistry Chapter 11 Alcohols, Phenols and Ethers Part-1
    MCQ Questions for Class 12 Chemistry Chapter 11 Alcohols, Phenols and Ethers Part-2
    MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids Part-1
    MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids Part-2
    MCQ Questions for Class 12 Chemistry Chapter 13 Amines Part-1
    MCQ Questions for Class 12 Chemistry Chapter 13 Amines Part-2
    MCQ Questions for Class 12 Chemistry Chapter 14 Biomolecules Part-1
    MCQ Questions for Class 12 Chemistry Chapter 14 Biomolecules Part-2
    MCQ Questions for Class 12 Chemistry Chapter 14 Biomolecules Part-3
    MCQ Questions for Class 12 Chemistry Chapter 15 Polymers Part-1
    MCQ Questions for Class 12 Chemistry Chapter 15 Polymers Part-2
    MCQ Questions for Class 12 Chemistry Chapter 16 Chemistry in Everyday Life Part-1
    MCQ Questions for Class 12 Chemistry Chapter 16 Chemistry in Everyday Life Part-2

NCERT SOLUTIONS FOR CLASS 12

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