CBSE Class 12 Chemistry Biomolecules Worksheet Set D

Chemistry
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Read and download free pdf of CBSE Class 12 Chemistry Biomolecules Worksheet Set D. Download printable Chemistry Class 12 Worksheets in pdf format, CBSE Class 12 Chemistry Unit 14 Biomolecules Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Chemistry Class 12 Assignments and practice them daily to get better marks in tests and exams for Class 12. Free chapter wise worksheets with answers have been designed by Class 12 teachers as per latest examination pattern

Unit 14 Biomolecules Chemistry Worksheet for Class 12

Class 12 Chemistry students should refer to the following printable worksheet in Pdf in Class 12. This test paper with questions and solutions for Class 12 Chemistry will be very useful for tests and exams and help you to score better marks

Class 12 Chemistry Unit 14 Biomolecules Worksheet Pdf

BIOMOLECULES
 
1 Glucose on oxidation with Br2(aq) gives
(a) Gluconic acid
(b) Tartaric acid
(c) Sachharic acid
(d) Meso-oxalic acid
 
2 In aqueous solution, an amino acid exist as
(a) cation
(b) anion
(c) zwitter ion
(d) neutral molecule
 
3 Which of the following is non-reducing sugar?
(a) Glucose
(b) Sucrose
(c) Maltose
(d) Lactose
 
4 α-helix structure of protein is stabilised by
(a) Peptide bonds
(b) van der Waals forces
(c) Hydrogen bonds
(d) Dipole-dipole interactions
 
5 Dinucleotide is obtained by joining two nucleotides together by phosphodiester linkage. Between which carbon atoms of pentose sugars of nucleotides are these linkages present?
(a) 5’and 3′
(b)1’and 5′
(c) 5′ and 5′
(d) 3′ and 3′
 
6 α-D (+) glucose and β-D (+) – glucose are
(a) Enantiomers
(b) Geometrical isomers
(c) Anomers
(d) Epimers
 
7 Kerating present in hair is an example of
(a) Fibrous protein
(b) Globular protein
(c) Conjugated protein
(d) Derived protein
 
8 DNA and RNA differ in
(a) Sugar
(b) Purines
(c) Pyrimidines
(d) Both (a) and (c)
 
9 Glucose is a __________
(a) monosaccharide
(b) disaccharide
(c) reducing sugar
(d) non-reducing sugar
 
10 Sugars are
A) Optically active polyhydroxy aldehydes
B Optically active polyhydroxy ketones
C) Optically active polyhydroxy aldehydes or ketones
D) Polyhydroxy aldehydes or ketones which may or may not be optically active
 
11 Which is monosaccharide
A)Glucose
B)Fructose
C) Galactose
D) All of these
 
12 Glucose contains
A) One -CHOgroup
B) Five-OH groups
C) One primary alcoholic group
D) Four secondary alcoholic groups
E) All are correct
 
13 Peptides are
A) Esters
B) Salts
C) Amides
D) Ketones
 
14 Isoelectric point is
A) Specific temperature
B) Suitable concentration of amino acid
C) Hydrogen ion concentration that does not allow migration of amino acid under electric field
D) Melting point of an amino acid under the influence of electric field
 
15 The base adenine occurs in
A)DNA only
B)RNA only
C)DNA and RNA both
D) Protein
 
16 Which one of the following rotates the plane polarized light towards left?
(a) D(+) Glucose
(b) L(+) Glucose
(c) D(-) Fructose
(d) D(+) Galactose
 
17 Fructose contains a ____functional group at carbon number____.
ketonic; 3
aldehydic; 2
ketonic; 2
aldehydic; 3
 
18 Glucose, on prolonged heating with HI, forms ____, suggesting that all the six carbon atoms are linked in a ____structure.
2-methylpentane, branched
n-hexane, straight
cyclohexane, cyclic
2-methylpentane, branched
 
19 Nucleotides are joined together by phosphodiester linkage between ____ and ____ carbon atoms of the pentose sugar.
5' and 3'
5' and 2'
5' and 5'
3' and 2'
 
20 _________ proteins are formed when polypeptide chains run parallel and are held together by ____and ____bonds.
Fibrous, hydrogen and disulphide
Globular, hydrogen and oxygen
Fibrous, hydrogen and nitrogen
Globular, hydrogen and disulphide
 
ASSERTION REASONING :
 
1 Assertion: D (+) – Glucose is dextrorotatory in nature.
   Reason: ‘D’ represents its dextrorotatory nature.
 
2 Assertion : Protein are made up of α- amino acids.
   Reason: During denaturation, secondary and tertiary structures of proteins are destroyed.
 
3 Assertion: All enzymes are made up of proteins and all proteins have three dimensional structures.
   Reason: Secondary structures of protein are sequence of amino acids.
 
4 Assertion: All α -amino acids except glycine contain at least one chiral carbon.
   Reason: Most naturally occurring amino acids have L-configuration.
 
5 Assertion: Deoxyribose is a carbohydrate.
   Reason: Carbohydrates are hydrates of carbon, compounds which follow formula of carbohydrates.
 
6 Assertion: Two strands in double helical structure of DNA are complementary to each other.
   Reason: Disulphide bonds are formed between specific pair of bases.
 
FILL IN THE BLANKS
 
1 Nucleic acids are the polymers of __________
 
2 Invert sugar is mixture of ________ and _______and is leavorotatory.
 
3 During denaturation of proteins, ______ and ______ structure are ruptured but _________structure remains the same
 
4 Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be __________
 
5 ________ is the linkage joining two amino acids.
 
6 C6H12O6 is the molecular formula of _______ and _______
 
7 A carbohydrate which cannot be hydrolysed to simple sugars are ________
 
8 Sugar present in DNA is_________________
 
9 Monosaccharide consisting of ketone as functional group is a __________
 
10 Insulin is an example of _______
 
11 ________proteins are insoluble in water.
 
12 A nucleotide consist of ______ ,______ and ________.
 
13 In D(+) glucose, -OH on the lowest asymmetric carbon is on the ___side, which is comparable to (+) glyceraldehyde
 
14 The two different crystalline forms of glucose are ____ and ____
 
15 Amino acids with equal number of amino and carboxyl groups are ____
 
16 Oxidation of glucose as well as Gluconic acid with nitric acid yields ____.
 
17 A native protein when subjected to a physical change, like change in ____, or a chemical change, like change in ____, the ____ bond is disturbed. It loses its biological activity called denaturation of protein.
 
18 The two cyclic hemiacetal forms of glucose differ only in the configuration of the hydroxyl group at C1, called ____ carbon
 
19 In aqueous solution, the carboxyl groups can ____ a proton and amino group can ____a proton, giving rise to a dipolar ion known as ____.
 
20 Keratin present in hair is a ____protein whereas insulin is an example of _____protein.


Please click on below link to download CBSE Class 12 Chemistry Biomolecules Worksheet Set B

Unit 01 The Solid State
CBSE Class 12 Chemistry Solid State Question Bank
CBSE Class 12 Chemistry Solid State Question Bank Set A
CBSE Class 12 Chemistry Solid State Question Bank Set B
CBSE Class 12 Chemistry Solid State Worksheet
CBSE Class 12 Chemistry The Solid State Worksheet Set A
CBSE Class 12 Chemistry The Solid State Worksheet Set B
Unit 03 Electrochemistry
CBSE Class 12 Chemistry Electrochemistry Question Bank
CBSE Class 12 Chemistry Electrochemistry Question Bank Set A
CBSE Class 12 Chemistry Electrochemistry Question Bank Set B
CBSE Class 12 Chemistry Electrochemistry Question Bank Set C
CBSE Class 12 Chemistry Electrochemistry Worksheet Set A
CBSE Class 12 Chemistry Electrochemistry Worksheet Set B
CBSE Class 12 Chemistry Electrochemistry Worksheet Set C
Unit 04 Chemical Kinetics
CBSE Class 12 Chemistry Chemical Kinetics Question Bank Set A
CBSE Class 12 Chemistry Chemical Kinetics Question Bank Set B
CBSE Class 12 Chemistry Chemical Kinetics Worksheet
CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set A
CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set B
CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set C
CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set D
Unit 05 Surface Chemistry
CBSE Class 12 Chemistry Surface Chemistry Question Bank
CBSE Class 12 Chemistry Surface Chemistry Question Bank Set A
CBSE Class 12 Chemistry Surface Chemistry Question Bank Set B
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set A
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set B
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set C
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set D
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set E
Unit 06 General Principles and Processes of Isolation of Elements
CBSE Class 12 Chemistry General principles and Processes of isolation of elements Question Bank
CBSE Class 12 Chemistry General Principles and Processes of Isolation of Elements Worksheet Set A
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set B
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set C
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set D
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set E
Unit 07 The p-Block Elements
CBSE Class 12 Chemistry The P Block Elements Question Bank
CBSE Class 12 Chemistry The P Block Elements Question Bank Set A
CBSE Class 12 Chemistry The P Block Elements Question Bank Set B
CBSE Class 12 Chemistry The p Block Elements Worksheet Set A
CBSE Class 12 Chemistry The p Block Elements Worksheet Set B
CBSE Class 12 Chemistry The p Block Elements Worksheet Set C
CBSE Class 12 Chemistry The P Block Elements Worksheet Set E
CBSE Class 12 Chemistry The P Block Elements Worksheet Set F
Unit 08 The d- and f-Block Elements
CBSE Class 12 Chemistry All Chapters Solved Worksheet
CBSE Class 12 Chemistry D And F Block Elements Question Bank Set A
CBSE Class 12 Chemistry D And F Block Elements Question Bank Set B
CBSE Class 12 Chemistry D And F Block Elements Worksheet Set A
CBSE Class 12 Chemistry D And F Block Elements Worksheet Set B
CBSE Class 12 Chemistry D And F Block Elements Worksheet Set C
CBSE Class 12 Chemistry Organic Compounds Containing Nitrogen Worksheet
CBSE Class 12 Chemistry The D Block Elements Worksheet
CBSE Class 12 Chemistry The d and f Block Elements Worksheet Set A
CBSE Class 12 Chemistry The d and f Block Elements Worksheet Set B
Unit 09 Coordination Compounds
CBSE Class 12 Chemistry Coordination Compounds Question Bank Set A
CBSE Class 12 Chemistry Coordination Compounds Question Bank Set B
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set A
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set B
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set C
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set D
CBSE Class 12 Chemistry Coordination Compounds Worksheet Set E
Unit 10 Haloalkanes and Haloarenes
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Question Bank Set A
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Question Bank Set B
CBSE Class 12 Chemistry Haloalkanes and Haloarenes Worksheet Set A
CBSE Class 12 Chemistry Haloalkanes and Haloarenes Worksheet Set B
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Worksheet Set C
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Worksheet Set D
CBSE Class 12 Chemistry Haloalkanes And Haloarenes Worksheet Set E
Unit 11 Alcohols, Phenols and Ethers
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Question Bank
CBSE Class 12 Chemistry Alcohols Phenols and Ethers Worksheet Set A
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Worksheet Set B
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Worksheet Set C
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Worksheet Set D
CBSE Class 12 Chemistry Alcohols Phenols And Ethers Worksheet Set E
Unit 12 Aldehydes, Ketones and Carboxylic Acids
CBSE Class 12 Chemistry Aldehydes Ketone and Carboxylic Acids Worksheet Set A
CBSE Class 12 Chemistry Aldehydes Ketone and Carboxylic Acids Worksheet Set B
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set A
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set B
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set C
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set D
CBSE Class 12 Chemistry Aldehydes Ketones And Carboxylic Acids Question Bank Set E
Unit 13 Amines
CBSE Class 12 Chemistry Amines Worksheet Set A
CBSE Class 12 Chemistry Amines Worksheet Set B
CBSE Class 12 Chemistry Amines Worksheet Set C
CBSE Class 12 Chemistry Amines Worksheet Set D
CBSE Class 12 Chemistry Amines Worksheet Set E
Unit 14 Biomolecules
CBSE Class 12 Chemistry Biomolecules Question Bank Set A
CBSE Class 12 Chemistry Biomolecules Question Bank Set B
CBSE Class 12 Chemistry Biomolecules Worksheet Set A
CBSE Class 12 Chemistry Biomolecules Worksheet Set B
CBSE Class 12 Chemistry Biomolecules Worksheet Set C
CBSE Class 12 Chemistry Biomolecules Worksheet Set D
Unit 15 Polymers
CBSE Class 12 Chemistry Polymers Worksheet Set A
CBSE Class 12 Chemistry Polymers Worksheet Set B
CBSE Class 12 Chemistry Polymers Worksheet Set C
CBSE Class 12 Chemistry Polymers Worksheet Set D
Unit 16 Chemistry in Everyday Life
CBSE Class 12 Chemistry Chemistry in Everyday Life Question Bank
CBSE Class 12 Chemistry Chemistry in Everyday Life Worksheet Set A
CBSE Class 12 Chemistry Chemistry in Everyday Life Worksheet Set B
CBSE Class 12 Chemistry In Everyday Life Question Bank
CBSE Class 12 Chemistry In Everyday Life Worksheet Set A
z More Worksheets for Class 12 Chemistry
CBSE Class 12 Chemistry All Chapters Questions Bank
CBSE Class 12 Chemistry Solution Question Bank
CBSE Class 12 Chemistry Solutions Question Bank Set A
CBSE Class 12 Chemistry Solutions Question Bank Set B
CBSE Class 12 Chemistry Solutions Worksheet
CBSE Class 12 Chemistry Solutions Worksheet Set A
CBSE Class 12 Chemistry Solutions Worksheet Set B
CBSE Class 12 Chemistry Worksheet Set A Solved
CBSE Class 12 Chemistry Worksheet Set B Solved
CBSE Class 12 Chemistry Worksheet Set C Solved
CBSE Class 12 Chemistry Worksheet Set D
CBSE Class 12 Chemistry Worksheet Set E Solved
CBSE Class 12 Chemistry Worksheet Set F
CBSE Class 12 Chemistry Worksheet Set G Solved
CBSE Class 12 Chemistry Worksheet Set H Solved
CBSE Class 12 Chemistry Worksheet Set I Solved

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