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  Small Molecular Weight Organic Compounds in Living Tissues (NEET Biology Notes) Biomolecules in Living Tissues: Complete NEET study chart covering carbohydrates, amino acids, lipids, nucleotides, DNA and RNA. Chapter: Biomolecules -Dr.Sanjaykumar Pawar  Introduction Living organisms are made up of different types of organic molecules . These molecules are called biomolecules because they are essential for life. The four major groups of biomolecules are: Carbohydrates (Sugars) Proteins (Amino acids) Lipids (Fats and Oils) Nucleic Acids (DNA & RNA building blocks) These molecules perform different functions such as providing energy, building body tissues, storing food, and carrying genetic information. 1. Carbohydrates (Sugars) What are carbohydrates? Carbohydrates are the main source of energy in living organisms. They are made up of three elements: Carbon (C) Hydrogen (H) Oxygen (O) General formula: (CH₂O)ₙ Examples shown in the figure (A) Glucose Molecular Formula: C₆...

Factors Affecting Enzyme Activity Class 11 Biology Notes | CBSE & NEET Factors Affecting Enzyme Activity ( NEET Note- Explanation)  Factors Affecting Enzyme Activity showing the effects of temperature, pH, substrate concentration, Vmax, and competitive inhibition for CBSE Class 11 and NEET Biology. -Dr.Sanjaykumar Pawar  What are Factors Affecting Enzyme Activity? Definition: Factors affecting enzyme activity are the conditions that can increase or decrease the speed of enzyme-catalysed reactions. Main Factors Temperature 🌡️ pH Substrate Concentration Inhibitors (Specific Chemicals) NEET Tip: Remember these four factors as "TPSI" T = Temperature P = pH S = Substrate concentration I = Inhibitors Line-by-Line Explanation Line 1 "The activity of an enzyme can be affected by a change in the conditions which can alter the tertiary structure of the protein." Easy Meaning Enzymes are proteins. Proteins have a special 3D (tertiary) struc...

  Chemical Reactions and Enzymes – Easy Line-by-Line Notes (NEET Beginner Level) Chemical reactions and enzymes explained with simple diagrams for CBSE Class 11 Biology students. 1. What is a Chemical Reaction? A chemical reaction is a process in which old chemical bonds break and new bonds are formed . As a result, new substances (products) are produced. Example: Ba(OH)₂ + H₂SO₄ → BaSO₄ + 2H₂O NEET Point: Chemical reaction = Breaking + Formation of bonds . 2. Types of Changes in Chemical Compounds A. Physical Change Only the shape, size, or state changes. No chemical bonds are broken or formed. No new substance is produced. Examples Ice → Water Water → Water vapour Cutting paper Breaking glass Remember: Physical change = No new substance. B. Chemical Change Old bonds break and new bonds form. A new substance is produced. This process is called a chemical reaction . Examples Burning wood Rusting of iron Digestion of food Hydrolysis of starc...

  Unit 3 – Cell: Structure and Functions  - Dr.Sanjaykumar Pawar  Easy Line-by-Line Notes (NEET Level for Beginners) 1. “Biology is the study of living organisms.” Biology = science of life. It studies plants, animals, microbes, and humans. 2. “The detailed description of their form and appearance only brought out their diversity.” Living organisms look different from each other. Example: bacteria, plants, and humans all have different shapes and sizes. 3. “Cell theory emphasised the unity underlying this diversity of forms.” Even though organisms look different, all are made of cells. This common feature is explained by Cell Theory . 4. “The cellular organisation of all life forms.” Every living organism is made of one or more cells. Cell = basic structural and functional unit of life. 5. “A description of cell structure and cell growth by division...” Cells have different parts called organelles. Cells grow and reproduce by cell division. ...