Class 12 Chemistry Chapter 14: Biomolecules

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Questions and Answers

What is the primary focus of Chapter 14 of NCERT Solutions for Class 12 Chemistry?

  • Organic synthesis
  • Inorganic compounds
  • Chemical bonding
  • Biomolecules (correct)

Which type of compounds are extensively studied in Chapter 14 of NCERT Solutions for Class 12 Chemistry?

  • Alcohols and phenols
  • Proteins and nucleic acids (correct)
  • Aldehydes and ketones
  • Hydrocarbons

What are the main biological functions of carbohydrates, as discussed in Chapter 14 of NCERT Solutions for Class 12 Chemistry?

  • Hormone regulation and enzyme activity
  • Energy storage and cell structure (correct)
  • DNA replication and protein synthesis
  • Immune response and blood clotting

Which biomolecule category is responsible for transmitting hereditary information, as explained in Chapter 14 of NCERT Solutions for Class 12 Chemistry?

<p>Nucleic acids (B)</p> Signup and view all the answers

What is the main focus of Chapter 14 in NCERT Solutions for Class 12 Chemistry?

<p>Classification of Carbohydrates (A)</p> Signup and view all the answers

What type of compounds are extensively studied in Chapter 14 of NCERT Solutions for Class 12 Chemistry?

<p>Carbohydrates (B)</p> Signup and view all the answers

Which category of carbohydrates includes glucose and fructose?

<p>Monosaccharides (C)</p> Signup and view all the answers

Which type of carbohydrates are formed by joining two monosaccharides?

<p>Disaccharides (C)</p> Signup and view all the answers

What is the classification of glucose and fructose in the context of carbohydrates?

<p>Monosaccharides (B)</p> Signup and view all the answers

Which category of carbohydrates is formed by joining two monosaccharides?

<p>Disaccharides (D)</p> Signup and view all the answers

What is the primary focus of Chapter 14 in NCERT Solutions for Class 12 Chemistry?

<p>Classification of Carbohydrates (C)</p> Signup and view all the answers

Which type of carbohydrates have a crucial role in the storage of energy?

<p>Polysaccharides (A)</p> Signup and view all the answers

Flashcards

Biomolecules in Chapter 14

Chapter 14 of NCERT Class 12 Chemistry focuses on complex organic molecules crucial for biological functions, including carbohydrates, proteins, and nucleic acids.

Proteins & Nucleic Acids

Chapter 14 extensively examines proteins and nucleic acids, their structures, and functions in living organisms.

Carbohydrate Function

Carbohydrates (sugars), a vital category of biomolecules, provide energy and form structural components in living organisms.

Nucleic Acids Role

Nucleic acids (DNA & RNA) carry genetic information, directing cell processes and heredity.

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Carbohydrate Classification

Chapter 14 classifies carbohydrates into monosaccharides, disaccharides, and polysaccharides.

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Monosaccharides

Simple sugars, like glucose and fructose, are the basic building blocks of carbohydrates.

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Disaccharides

Formed by the combination of two monosaccharides.

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Polysaccharides Example

Complex carbohydrates made up of many monosaccharides, crucial for energy storage (starch, glycogen).

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Glucose & Fructose

Examples of simple sugars (monosaccharides).

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Monosaccharides Definition

The simplest form of carbohydrate, containing one sugar unit.

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Energy Storage

Polysaccharides store energy in the form of starch and glycogen within living organisms.

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Disaccharide example

Sucrose (table sugar) is a disaccharide.

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Study Notes

Biomolecules: Carbohydrates

  • Primary focus of Chapter 14 of NCERT Solutions for Class 12 Chemistry: biomolecules, particularly carbohydrates

Types of Compounds

  • Compounds extensively studied in Chapter 14: biomolecules, especially carbohydrates

Biological Functions of Carbohydrates

  • Main biological functions of carbohydrates: providing energy and acting as structural components of living organisms

Biomolecule Categories

  • Biomolecule category responsible for transmitting hereditary information: nucleic acids (DNA and RNA)

Classification of Carbohydrates

  • Category of carbohydrates that includes glucose and fructose: monosaccharides
  • Type of carbohydrates formed by joining two monosaccharides: disaccharides
  • Classification of glucose and fructose: simple sugars or monosaccharides
  • Type of carbohydrates formed by joining two monosaccharides: disaccharides (e.g., sucrose, lactose, and maltose)

Importance of Carbohydrates

  • Type of carbohydrates that have a crucial role in the storage of energy: polysaccharides (e.g., starch, glycogen, and cellulose)

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