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NCERT solutions for Chemistry [English] Class 12 chapter 14 - Biomolecules [Latest edition]

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Solutions for Chapter 14: Biomolecules

Below listed, you can find solutions for Chapter 14 of CBSE, Karnataka Board PUC NCERT for Chemistry [English] Class 12.


Intext QuestionsExercises
Intext Questions [Pages 412 - 422]

NCERT solutions for Chemistry [English] Class 12 14 Biomolecules Intext Questions [Pages 412 - 422]

Intext Questions | Q 1 | Page 412

Glucose or sucrose are soluble in water but cyclohexane or benzene (simple six membered ring compounds) are insoluble in water. Explain.

Intext Questions | Q 2 | Page 412

What are the expected products of hydrolysis of lactose?

Intext Questions | Q 3 | Page 412

How do you explain the absence of aldehyde group in the pentaacetate of D-glucose?

Intext Questions | Q 4 | Page 417

The melting points and solubility in water of amino acids are generally higher than that of the corresponding halo acids. Explain.

Intext Questions | Q 5 | Page 417

Where does the water present in the egg go after boiling the egg?

Intext Questions | Q 6 | Page 422

Why Vitamin C cannot be stored in our body ?

Intext Questions | Q 7 | Page 422

What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?

Intext Questions | Q 8 | Page 422

When RNA is hydrolysed, there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of RNA?

Exercises [Page 423]

NCERT solutions for Chemistry [English] Class 12 14 Biomolecules Exercises [Page 423]

Exercises | Q 1 | Page 423

What are monosaccharides?

Exercises | Q 2 | Page 423

What are reducing sugars?

Exercises | Q 3 | Page 423

Write two main functions of carbohydrates in plants.

Exercises | Q 4 | Page 423

Classify the following into monosaccharides and disaccharides.

Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose

Exercises | Q 5 | Page 423

Define the following term:

Glycosidic linkage

Exercises | Q 6 | Page 423

What is glycogen? How is it different from starch?

Exercises | Q 7.1 | Page 423

What are the hydrolysis products of sucrose 

Exercises | Q 7.2 | Page 423

What are the hydrolysis products of lactose?

Exercises | Q 8 | Page 423

What is the basic structural difference between starch and cellulose?

Exercises | Q 9.3 | Page 423

What happens when D-glucose is treated with the following reagent?

HNO3

Exercises | Q 9.1 | Page 423

What happens when D-glucose is treated with the following reagent?

HI

Exercises | Q 9.2 | Page 423

Write the reactions involved when D-glucose is treated with the following reagent:
Br2 water

Exercises | Q 10 | Page 423

Enumerate the reactions of D-glucose which cannot be explained by its open chain structure.

Exercises | Q 11 | Page 423

What are essential and non-essential amino acids? Give two examples of each type.

Exercises | Q 12.1 | Page 423

Define the following as related to proteins 

Peptide linkage

Exercises | Q 12.2 | Page 423

Define the following term as related to proteins:

Primary structure

Exercises | Q 12.3 | Page 423

Define the following terms as related to proteins:

Denaturation

Exercises | Q 13 | Page 423

What are the common types of secondary structure of proteins?

Exercises | Q 14 | Page 423

What type of bonding helps in stabilising the ∝-helix structure of proteins?

Exercises | Q 15 | Page 423

Differentiate between  the following :

 Fibrous proteins and Globular proteins 

Exercises | Q 16 | Page 423

How do you explain the amphoteric behaviour of amino acids?

Exercises | Q 17 | Page 423

What are enzymes

Exercises | Q 18 | Page 423

What is the effect of denaturation on the structure of proteins?

Exercises | Q 19 | Page 423

How are vitamins classified? Name the vitamin responsible for the coagulation of blood.

Exercises | Q 20 | Page 423

Why are vitamin A and vitamin C essential to us? Give their important sources.

Exercises | Q 21.1 | Page 423

What are nucleic acids?

Exercises | Q 21.2 | Page 423

Mention two important functions of nucleic acids.

Exercises | Q 22 | Page 423

What is the difference between a nucleoside and nucleotide?

Exercises | Q 23 | Page 423

The two strands in DNA are not identical but are complementary. Explain.

Exercises | Q 24 | Page 423

Write the important functional differences between DNA and RNA.

Exercises | Q 24 | Page 423

Write the important structural differences between DNA and RNA.

Exercises | Q 25 | Page 423

What are the different types of RNA found in the cell?

Solutions for 14: Biomolecules

Intext QuestionsExercises

NCERT solutions for Chemistry [English] Class 12 chapter 14 - Biomolecules

Shaalaa.com has the CBSE, Karnataka Board PUC Mathematics Chemistry [English] Class 12 CBSE, Karnataka Board PUC solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Chemistry [English] Class 12 CBSE, Karnataka Board PUC 14 (Biomolecules) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

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Concepts covered in Chemistry [English] Class 12 chapter 14 Biomolecules are Introduction of Carbohydrates, Classification of Carbohydrates, Monosaccahrides, Importance of Carbohydrates, Introduction of Proteins, Amino Acids, Structure of Proteins, Introduction of Vitamins, Introduction of Nucleic Acids, Preparation of Glucose, Structures of Glucose, Disaccharides - Sucrose, Maltose and Lactose, Polysaccharides - Starch, Cellulose and Glycogen, Classification of Amino Acids, Introduction of Enzymes, Mechanism of Enzyme Action, Denaturation of Proteins, Structure of Fructose, Classification of Vitamins, Chemical Composition of Nucleic Acids, Structure of Nucleic Acids, Biological Functions of Nucleic Acids, Biomolecules Numericals, Peptide, Oligosaccharides, Polysaccharides, Chemical Coordination, Lipids and Hormones, Introduction of Carbohydrates, Classification of Carbohydrates, Monosaccahrides, Importance of Carbohydrates, Introduction of Proteins, Amino Acids, Structure of Proteins, Introduction of Vitamins, Introduction of Nucleic Acids, Preparation of Glucose, Structures of Glucose, Disaccharides - Sucrose, Maltose and Lactose, Polysaccharides - Starch, Cellulose and Glycogen, Classification of Amino Acids, Introduction of Enzymes, Mechanism of Enzyme Action, Denaturation of Proteins, Structure of Fructose, Classification of Vitamins, Chemical Composition of Nucleic Acids, Structure of Nucleic Acids, Biological Functions of Nucleic Acids, Biomolecules Numericals, Peptide, Oligosaccharides, Polysaccharides, Chemical Coordination, Lipids and Hormones.

Using NCERT Chemistry [English] Class 12 solutions Biomolecules exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE, Karnataka Board PUC Chemistry [English] Class 12 students prefer NCERT Textbook Solutions to score more in exams.

Get the free view of Chapter 14, Biomolecules Chemistry [English] Class 12 additional questions for Mathematics Chemistry [English] Class 12 CBSE, Karnataka Board PUC, and you can use Shaalaa.com to keep it handy for your exam preparation.

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