Biochemistry, a crucial branch of science in Class 10th Chemistry, explores the chemical basis of life. Chapter 13 focuses on understanding macromolecules, their roles, and how they contribute to living organisms.
These notes offer a structured overview of the topic with solved questions, ensuring clarity and exam success. Dive into these well-crafted notes to grasp biochemistry’s fundamentals effortlessly.

























Topics Covered in These Notes
These notes comprehensively cover:
- Introduction to Biochemistry
- Multiple Choice Questions (MCQs)
- Short Questions and Answers
- Detailed Explanations of Long Questions
- Key Concepts in Carbohydrates, Proteins, Lipids, and Nucleic Acids
Chapter 13 Solved Notes Topic-Wise
MCQs
- Explore multiple-choice questions that test key concepts like the synthesis and function of carbohydrates, proteins, and lipids.
- Example:
Carbohydrates are synthesized through:
A) Photosynthesis
B) Respiration
Answer: A
Short Questions
- Q: What is Biochemistry?
Ans: It is the branch of chemistry dealing with substances found in living organisms. - Q: What are macromolecules?
Ans: They are large molecules like carbohydrates, proteins, lipids, and nucleic acids synthesized by organisms.
Long Questions
- Carbohydrates: Detailed explanation of synthesis through photosynthesis, structure, and classification into monosaccharides, oligosaccharides, and polysaccharides.
- Proteins: Defined as nitrogenous compounds made up of amino acids, highlighting their role in muscle formation and enzymatic functions.
Tool for Success in Exams
These notes are designed to:
- Simplify complex topics for better understanding.
- Highlight exam-relevant questions.
- Offer step-by-step solutions, aiding efficient revision.
Colored Notes
These notes are visually enhanced with colors to make it easier for students to focus on key terms, formulas, and concepts. The use of color coding improves comprehension and retention. Below are some examples:
- Red: Highlighting definitions, such as “Biochemistry: The study of chemical processes in living organisms.”
- Blue: Key formulas, like C6H12O6 + 6O2 → 6CO2 + 6H2O, used in carbohydrate synthesis.
- Green: Important examples, such as proteins are made of amino acids linked by peptide bonds.
This thoughtful use of colors ensures that students can quickly identify and focus on essential information during their studies.
Notes Are Free to Use
The provided notes are freely accessible to all students. You can download them without any charges, ensuring every learner has equal access to high-quality study material. They aim to make quality education available to everyone, supporting learning regardless of resources.
Notes Are Mistake-Free
These notes are meticulously prepared and reviewed by subject experts to ensure error-free content. All questions, solutions, and explanations are aligned with the curriculum and thoroughly checked for accuracy. This guarantees reliable study material for achieving excellent results.
Conclusion
Biochemistry is a cornerstone of Class 10th Chemistry, bridging the gap between biology and chemistry. These Chapter 13 notes provide a well-rounded understanding of macromolecules like carbohydrates, proteins, lipids, and nucleic acids.
Their structured format, along with solved exercises and detailed explanations, ensures you’re well-prepared for exams. Leverage these notes to boost your confidence and score higher in chemistry.
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