Biology | Class 9

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    Chapter 1 Introduction to Biology ( 21 videos)  (Practice Test)

      1.1: Definition of Biology
      1.3: Relationship of Biology to Other Sciences
      1.5: Division of Living Organisms in Five Groups (Practice Test)
      1.6: Quran Instructs to Reveal Study of Life (Practice Test)
      1.7: Contributions of Muslim Scientists in the Field of Biology (Practice Test)
      1.8: The Levels of Organization of Organisms
      1.9: Cellular Organization in Organisms (Practice Test)

    Chapter 2 Solving a Biological Problem ( 6 videos)  (Practice Test)

      2.1: Steps Involved in Biological Method (Practice Test)
      2.2: A Case of Malaria - An example of Biological Method (Practice Test)
      2.3: The Use of Ratio and Proportion in Solving Biological Problems
      2.4: Importance of Data Analysis

    Chapter 3 Biodiversity ( 19 videos)  (Practice Test)

      3.1: Definition of Biodiversity
      3.2: Major Varieties of Life on the Planet Earth
      3.3: Importance of Relation Between Biodiversity and Natural Ecosystem
      3.4: Basis of Classification of Living Organisms (Practice Test)
      3.5: Historical Background of Aims and Principles of Classification
      3.6: Aristotle (Founder of Biological Classification)
      3.7: Basis of 'Five' Kingdom Classification System
      3.8: Importance and Comparison of Two Kingdom System and Five Kingdom System
      3.10: Structure of Viruses (Practice Test)
      3.11: Historical Background, Aims and Principles of Binomial Nomenclature (Practice Test)
      3.13: Human Impact on Biodiversity
      3.14: Deforestation (Practice Test)
      3.15: Importance of Conservation of Biodiversity

    Chapter 4 Cells and Tissues ( 53 videos)  (Practice Test)

      4.2: Relationship Between Development in Imaging Technology and the Current Understanding of the Cell
      4.3: History of the Formulation of Cell Theory (Practice Test)
      4.4: Acellular Particles (Practice Test)
      Prions
    1. Prions
      5087 views
    2. Viruses
    3. Viruses
      11445 views
      4.5: Historical Timeline of Cell Theory (Practice Test)
      4.6: Structure and Functions of Cell (Practice Test)
      4.7: Structure of Leaf and Functions of Constituents Cells (Practice Test)
      4.8: Significance of Cell Wall and Chloroplast (Practice Test)
      4.9: Relationship Between Cell Function and Cell Structure
      4.10: Cell as an Open System
      4.11: Contribution of Various Cells for the Healthy Functioning of Human Body
      4.12: Difference Between Prokaryotic and Eukaryotic Cell
      4.13: Importance of Nucleus and Mitochondria for Prokaryotic and Eukaryotic Cells
      4.14: Relation of Surface Area to volume Ratio With Cell Size
      4.15: Relation between Surface to volume Ratio and Size And Shape of Cell
      4.16: Passive and active Transport of Molecules Across The Cell Membrane (Practice Test)
      4.17: Comparison of Passive and Active Transport
      4.18: Turgor Pressure
      Turgor
    1. Turgor
      3908 views
      4.19: Plasmolysis (Practice Test)
      Plasmolysis
    1. Plasmolysis
      1363 views
      4.20: Role of Cell Membrane in Maintaining Equilibrium While Exchanging Matters
      4.24: Relation Between The Functions and Structures of Tissues
      4.25: A Colony of Cells is Not Considered as a Tissue

    Chapter 5 Cell Cycle ( 13 videos)  (Practice Test)

      5.1: Cell Cycle (Practice Test)
      Cell Cycle
    1. Cell Cycle
      20785 views
      5.2: Phases of Cell Cycle (Practice Test)
      Cell Cycle
    1. Cell Cycle
      20785 views
      5.4: Significance of Mitosis
      5.6: Significance of Meiosis
      5.7: Comparison Between Mitosis and Meiosis
      5.8: Necrosis and Apoptosis

    Chapter 6 Enzymes ( 9 videos)  (Practice Test)

      6.1: Metabolism
      6.2: Role of Enzymes in Metabolism (Practice Test)
      Enzymes
    1. Enzymes
      21151 views
      6.3: Intracellular and Extracellular Enzymes and Enzymes Increase Rate of Reaction
      6.4: Characteristics of Enzymes (Practice Test)
      6.5: Co-factors
      6.6: Activation Energy (Practice Test)
      Enzymes
    1. Enzymes
      21151 views
      6.7: Factors Affecting the Rate of Enzyme Action
      6.8: Mechanism of Enzyme Action (Practice Test)
      6.9: Specificity of Enzymes

    Chapter 7 Bioenergetics ( 22 videos)  (Practice Test)

      7.2: Oxidation-Reduction Reactions (Practice Test)
      7.3: ATP-The Energy Currency of Cell
      7.4: ATP-ADP Cycle
      7.5: Photosynthesis
      7.7: Role of Chlorophyll in Trade of Light Energy
      7.8: Process Involved in Photosynthesis (Practice Test)
      7.9: Limiting Factors for Photosynthesis
      7.11: Mechanism of Aerobic Respiration (Practice Test)
      7.12: Energy Budget of Respiration (Practice Test)
      7.13: Comparison of Photosynthesis and Respiration (Practice Test)
      7.14: Comparison Between Aerobic and Anaerobic Respiration

    Chapter 8 Introduction To Nutrition ( 39 videos)  (Practice Test)

      8.2: Role of Nitrogen in Protein Synthesis (Practice Test)
      8.3: Role of Magnesium in Chlorophyll Formation (Practice Test)
      8.4: Effect of Lack of Nitrate and Magnesium ion in Plant Growth (Practice Test)
      8.5: Importance of Fertilizers in Agriculture
      8.6: Environmental Hazards Related to Chemical Fertilizers Use
      8.8: Balanced Diet
      8.9: Relation of Diet and Energy Intake With Age, Sex and Activity of an Individual
      8.11: Factors That Contribute to Famine
      8.12: Digestive System and Digestion of Food in Man
      8.14: Role of Pancreas in Digestion (Practice Test)
      Pancreas
    1. Pancreas
      10728 views
      8.15: Role of Liver in The Metabolism of Glucose and Amino Acids and in the Formation of Urea (Practice Test)
      8.16: Digestive Disorder or Disorder of Gut (Practice Test)

    Chapter 9 Transport ( 40 videos)  (Practice Test)

      9.1: Transport and Its Needs
      9.4: Transport of Water in Stem (Practice Test)
      9.5: Translocation of Food in Plants (Practice Test)