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Chapters
2: Solutions
3: Ionic Equilibria
4: Chemical Thermodynamics
5: Electrochemistry
6: Chemical Kinetics
7: Elements of Groups 16, 17 and 18
8: Transition and Inner transition Elements
9: Coordination Compounds
10: Halogen Derivatives
11: Alcohols, Phenols and Ethers
12: Aldehydes, Ketones and Carboxylic acids
13: Amines
▶ 14: Biomolecules
15: Introduction to Polymer Chemistry
16: Green Chemistry and Nanochemistry
![Balbharati solutions for Chemistry [English] 12 Standard HSC chapter 14 - Biomolecules - Shaalaa.com](/images/chemistry-english-12-standard-hsc_6:74400b801d4c44ef8e058ff9d9dfe964.jpg "Balbharati solutions for Chemistry [English] 12 Standard HSC chapter 14 - Biomolecules")
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Solutions for Chapter 14: Biomolecules
Below listed, you can find solutions for Chapter 14 of Maharashtra State Board Balbharati for Chemistry [English] 12 Standard HSC.
Balbharati solutions for Chemistry [English] 12 Standard HSC 14 Biomolecules Exercises [Pages 320 - 321]
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Aldohexose
Aldoheptose
Ketotetrose
Ketoheptose
Select the most correct choice.
Open chain formula of glucose does not contain ______.
formyl group
anomeric hydroxyl group
primary hydroxyl group
secondary hydroxyl group
Which of the following does not apply to \[\ce{CH2NH2-COOH}\]?
Neutral amino acid
L - Amino acid
Exists as zwitter ion
Natural amino acid
Select the most correct choice.
Tryptophan is called essential amino acid because
it contains aromatic nucleus
it is present in all the human proteins
it cannot be synthesised by human body
it is essential constituent of enzymes
Select the most correct choice.
A disulphide link gives rise to the following structure of a protein.
Primary
Secondary
Tertiary
Quaternary
Select the most correct choice.
RNA has _______.
A - U base pairing
P-S-P-S backbone
double helix
G - C base pairing
Give scientific reasons:
The disaccharide sucrose gives negative Tollens test while the disaccharide maltose gives a positive Tollens test.
Give scientific reasons:
On complete hydrolysis DNA gives equimolar quantities of adenine and thymine.
Give scientific reasons:
α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.
Give scientific reasons:
Hydrolysis of sucrose is called inversion.
Give scientific reasons:
On boiling egg albumin becomes opaque white.
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide is double stranded. (_______)
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains uracil. (________)
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains D-ribose. (_______)
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains guanine. (_______)
Write the sequence of the complementary strand for the following segment of a DNA molecule.
5' - CGTTTAAG - 3'
Write the sequence of the complementary strand for the following segment of a DNA molecule.
5' - CCGGTTAATACGGC - 3'
Write the names and schematic representations of all the possible dipeptides formed from alanine, glycine and tyrosine.
Give two evidences for presence of formyl group in glucose.
Draw a neat diagram for the following:
Haworth formula of glucopyranose.
Draw a neat diagram for the following:
Zwitter ion
Draw a neat diagram for the following:
Haworth formula of maltose
Draw a neat diagram for the following:
Secondary structure of protein
Draw a neat diagram for the following:
AMP
Draw a neat diagram for the following:
dAMP
Draw a neat diagram for the following:
One purine base from nucleic acid
Draw a neat diagram for the following:
Enzyme catalysis
Solutions for 14: Biomolecules
Balbharati solutions for Chemistry [English] 12 Standard HSC chapter 14 - Biomolecules
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Concepts covered in Chemistry [English] 12 Standard HSC chapter 14 Biomolecules are Principal Molecules of the Living World, Carbohydrates, Proteins, Nucleic Acids.
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