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NCERT solutions for Class 12 Chemistry chapter 14 - Biomolecules

Chemistry Textbook for Class 12

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NCERT Chemistry Class 12

Chemistry Textbook for Class 12 - Shaalaa.com

Chapter 14: Biomolecules

Chapter 14: Biomolecules solutions [Pages 412 - 422]

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.

Q 2 | Page 412

What are the expected products of hydrolysis of lactose?

Q 3 | Page 412

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

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.

Q 5 | Page 417

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

Q 6 | Page 422

Why Vitamin C cannot be stored in our body ?

Q 7 | Page 422

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

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?

Chapter 14: Biomolecules solutions [Page 423]

Q 1 | Page 423

What are monosaccharides?

Q 2 | Page 423

What are reducing sugars?

Q 3 | Page 423

Write two main functions of carbohydrates in plants.

Q 4 | Page 423

Classify the following into monosaccharides and disaccharides.

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

Q 5 | Page 423

Define the following terms:

Glycosidic linkage

Q 6 | Page 423

What is glycogen? How is it different from starch?

Q 7.1 | Page 423

What are the hydrolysis products of sucrose 

Q 7.2 | Page 423

What are the hydrolysis products of lactose?

Q 8 | Page 423

What is the basic structural difference between starch and cellulose?

Q 9 | Page 423

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

(i) HI (ii) Bromine water (iii) HNO3

Q 10 | Page 423

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

Q 11 | Page 423

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

Q 12.1 | Page 423

Define the following as related to proteins 

Peptide linkage

Q 12.2 | Page 423

Define the following terms as related to proteins :

Primary structure

Q 12.3 | Page 423

Define the following terms as related to proteins:

Denaturation

Q 13 | Page 423

What are the common types of secondary structure of proteins?

Q 14 | Page 423

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

Q 15 | Page 423

Differentiate between globular and fibrous proteins.

Q 16 | Page 423

How do you explain the amphoteric behaviour of amino acids?

Q 17 | Page 423

What are enzymes

Q 18 | Page 423

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

Q 19 | Page 423

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

Q 20 | Page 423

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

Q 21 | Page 423

What are nucleic acids? Mention their two important functions.

Q 22 | Page 423

What is the difference between a nucleoside and nucleotide ?

Q 23 | Page 423

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

Q 24 | Page 423

Write the important structural and functional differences between DNA and RNA.

Q 25 | Page 423

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

Chapter 14: Biomolecules Extra questions

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

Chapter 14: Biomolecules

NCERT Chemistry Class 12

Chemistry Textbook for Class 12 - Shaalaa.com

NCERT solutions for Class 12 Chemistry chapter 14 - Biomolecules

NCERT solutions for Class 12 Chemistry chapter 14 (Biomolecules) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CBSE Chemistry Textbook for Class 12 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com are providing such solutions so that students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 12 Chemistry chapter 14 Biomolecules are Introduction of Carbohydrates, Classification of Carbohydrates, Monosaccahrides, Importance of Carbohydrates, Introduction of Proteins, Amino Acids, Structure of Proteins, Lipids and Hormones, Introduction of Vitamins, Introduction of Nucleic Acids, Preparation of Glucose from Sucrose (Cane Sugar) and Starch, 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.

Using NCERT Class 12 solutions Biomolecules exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 12 prefer NCERT Textbook Solutions to score more in exam.

Get the free view of chapter 14 Biomolecules Class 12 extra questions for Chemistry and can use Shaalaa.com to keep it handy for your exam preparation

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