Biology | Class 9

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    Chapter 1 Introduction to Biology ( 19 videos)  (Practice Test)

      1.1: Introduction to Biology (Practice Test)
      Introduction to Biology
    1. Introduction to Biology
      65455 views
      2. Zoology, Botany, Microbiology
    2. Zoology, Botany, Microbiology
      30244 views
      3. Morphology, Anatomy and Physiology
    3. Morphology, Anatomy and Physiology
      11586 views
      4. Cell Biology and Histology
    4. Cell Biology and Histology
      7585 views
      5. Genetics and Embryology
    5. Genetics and Embryology
      7526 views
      6. Environmental Biology, Taxonomy and Palaeontology
    6. Environmental Biology, Taxonomy and Palaeontology
      7251 views
      7. Sociobiology and Parasitology
    7. Sociobiology and Parasitology
      4154 views
      8. Biotechnology and Biochemistry
    8. Biotechnology and Biochemistry
      4004 views
      9. Immunology, Entomology, Pharmacology
    9. Immunology, Entomology, Pharmacology
      3194 views
      10. Relationship of Different Branches of Science
    10. Relationship of Different Branches of Science
      8888 views
      11. More on Biology and Other Science
    11. More on Biology and Other Science
      5505 views
      1.2: Muslim Scientists (Practice Test)
      Muslim Scientists (Kidney)
    1. Muslim Scientists (Kidney)
      1936 views
      2. Muslim Scientists (Eye)
    2. Muslim Scientists (Eye)
      1222 views
      1.3: The Levels of Organization (Practice Test)
      Subatomic and Atomic Level, Molecular Level
    1. Subatomic and Atomic Level, Molecular Level
      12974 views
      2. Organelle, Cell and Tissue Level
    2. Organelle, Cell and Tissue Level
      9099 views
      3. Organ and Organ System Level
    3. Organ and Organ System Level
      8716 views
      4. Individual, Population, Community and Biosphere Level
    4. Individual, Population, Community and Biosphere Level
      6670 views
      5. Cellular Organization
    5. Cellular Organization
      7950 views
      6. Multicellular Organisms
    6. Multicellular Organisms
      3846 views

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

      2.1: Biological Method (Practice Test)
      Biological Method
    1. Biological Method
      24526 views
      2. More on Biological Method
    2. More on Biological Method
      12596 views
      3. Law, Principles
    3. Law, Principles
      6279 views
      4. Study of Malaria
    4. Study of Malaria
      7761 views
      5. More Study of Malaria
    5. More Study of Malaria
      4085 views
      2.2: Data Organization And Data Analysis
      Data Organization and Analysis
    1. Data Organization and Analysis
      5262 views

    Chapter 3 Biodiversity ( 12 videos)  (Practice Test)

      3.1: Biodiversity (Practice Test)
      Biodiversity and its Importance
    1. Biodiversity and its Importance
      14547 views
      3.2: Classification - Aims and Principles (Practice Test)
      Aims and Basis of Classification
    1. Aims and Basis of Classification
      12075 views
      2. Taxonomic Hierarchy
    2. Taxonomic Hierarchy
      13440 views
      3. Species - The Basic Unit of Classification
    3. Species - The Basic Unit of Classification
      3.3: History of Classification Systems (Practice Test)
      Two Kingdom Classification System
    1. Two Kingdom Classification System
      9650 views
      2. Three Kingdom Classification System
    2. Three Kingdom Classification System
      7821 views
      3.4: The Five Kingdoms (Practice Test)
      Five Kingdom Classification System
    1. Five Kingdom Classification System
      20175 views
      2. Status of Viruses
    2. Status of Viruses
      9055 views
      3.5: Binomial Nomenclature (Practice Test)
      Binomial Nomenclature
    1. Binomial Nomenclature
      6877 views
      3.6: Conservation of Biodiversity (Practice Test)
      Deforestation, Soil Erosion
    1. Deforestation, Soil Erosion
      2459 views
      2. Conservation of Biodiversity, Endangered Species in Pakistan
    2. Conservation of Biodiversity, Endangered Species in Pakistan
      4067 views
      3. Conservation of Wildlife
    3. Conservation of Wildlife
      656 views

    Chapter 4 Cells And Tissues ( 34 videos)  (Practice Test)

      4.1: Microscopy And The Emergence of Cell Theory (Practice Test)
      Light Microscope
    1. Light Microscope
      12496 views
      2. Electron Microscope
    2. Electron Microscope
      10876 views
      3. formulation of Cell Theory
    3. formulation of Cell Theory
      15087 views
      4. Status of Viruses
    4. Status of Viruses
      9055 views
      4.2: Cellular Structures And Functions (Practice Test)
      Cell wall
    1. Cell wall
      36672 views
      2. Cell Membrane
    2. Cell Membrane
      24850 views
      3. Cytoplasm, Cytoskeleton
    3. Cytoplasm, Cytoskeleton
      17752 views
      4. Nucleus
    4. Nucleus
      17830 views
      5. Endoplasmic Reticulum (ER), Ribosomes
    5. Endoplasmic Reticulum (ER), Ribosomes
      14548 views
      6. Mitochondria
    6. Mitochondria
      15515 views
      7. Plastids
    7. Plastids
      13337 views
      8. Golgi Apparatus and Lysosomes
    8. Golgi Apparatus and Lysosomes
      22182 views
      9. Centrioles
    9. Centrioles
      17135 views
      10. Vacuoles
    10. Vacuoles
      11106 views
      11. Difference between Prokaryotic and Eukaryotic Cells
    11. Difference between Prokaryotic and Eukaryotic Cells
      13699 views
      12. Relationship b/w Cell Structure and Function
    12. Relationship b/w Cell Structure and Function
      2541 views
      13. Cell as an Open System
    13. Cell as an Open System
      4.3: Cell Size and Surface Area To Volume Ratio
      Cell Size and Surface Area to Volume Ratio
    1. Cell Size and Surface Area to Volume Ratio
      4.4: Passage of Molecules Into And Out of Cells (Practice Test)
      Diffusion and Facilitated Diffusion
    1. Diffusion and Facilitated Diffusion
      8261 views
      2. Osmosis
    2. Osmosis
      6053 views
      3. Water Balance Problems
    3. Water Balance Problems
      4147 views
      4. Application of Knowledge About Semi-Permeable Membranes
    4. Application of Knowledge About Semi-Permeable Membranes
      1958 views
      5. Filtrations and Active Transport
    5. Filtrations and Active Transport
      3995 views
      6. Endocytosis and Exocytosis
    6. Endocytosis and Exocytosis
      8353 views
      4.5: Animal and Plant Tissues (Practice Test)
      Animal and Plant Tissues
    1. Animal and Plant Tissues
      4313 views
      2. Epithelial Tissues (Animals Tissues)
    2. Epithelial Tissues (Animals Tissues)
      7670 views
      3. Connective Tissues
    3. Connective Tissues
      5051 views
      4. Muscle Tissues
    4. Muscle Tissues
      3625 views
      5. Connective Tissues And Nervous Tissues
    5. Connective Tissues And Nervous Tissues
      6. Plant Tissues, Simple and Compound Tissues
    6. Plant Tissues, Simple and Compound Tissues
      5055 views
      7. Meristematic Tissues
    7. Meristematic Tissues
      4358 views
      8. Permanent Tissues
    8. Permanent Tissues
      3534 views
      9. More on Permanent Tissues
    9. More on Permanent Tissues
      2449 views
      10. Compound Tissues
    10. Compound Tissues
      3280 views

    Chapter 5 Cell Cycle ( 12 videos)  (Practice Test)

      5.1: Cell Cycle (Practice Test)
      Cell Cycle
    1. Cell Cycle
      20785 views
      5.2: Mitosis (Practice Test)
      Mitosis, Prophase
    1. Mitosis, Prophase
      30609 views
      2. Anaphase, Telophase of Mitosis
    2. Anaphase, Telophase of Mitosis
      16891 views
      3. More on Mitosis, Cytokinesis
    3. More on Mitosis, Cytokinesis
      10975 views
      4. Significance of Mitosis
    4. Significance of Mitosis
      10862 views
      5.3: Meiosis (Practice Test)
      Metaphase I, Anaphase I and Telophase I
    1. Metaphase I, Anaphase I and Telophase I
      15853 views
      2. Meiosis-I, Prophase I
    2. Meiosis-I, Prophase I
      13659 views
      3. Meiosis I (Prophase I)
    3. Meiosis I (Prophase I)
      8802 views
      4. Meiosis-II
    4. Meiosis-II
      7798 views
      5. Significance of Meiosis
    5. Significance of Meiosis
      8647 views
      6. Comparison of Mitosis and Meiosis
    6. Comparison of Mitosis and Meiosis
      3684 views
      5.4: Apoptosis and Necrosis
      Apoptosis and Necrosis
    1. Apoptosis and Necrosis
      2655 views

    Chapter 6 Enzymes ( 7 videos)  (Practice Test)

      6.1: Characteristics of Enzymes (Practice Test)
      Enzymes
    1. Enzymes
      21151 views
      2. Characteristics of Enzymes
    2. Characteristics of Enzymes
      8195 views
      3. Uses of Enzymes
    3. Uses of Enzymes
      4621 views
      4. Factors Affecting the Rate of Enzyme Action
    4. Factors Affecting the Rate of Enzyme Action
      7365 views
      6.2: Mechanism of Enzyme Action
      Lock and Key Model
    1. Lock and Key Model
      9839 views
      2. Induced Fit Model of Enzyme Action
    2. Induced Fit Model of Enzyme Action
      2579 views
      6.3: Specificity of Enzymes
      Specificity of Enzymes
    1. Specificity of Enzymes
      6045 views

    Chapter 7 Bioenergetics ( 19 videos)  (Practice Test)

      7.1: Bioenergetics And The Role of ATP (Practice Test)
      Basic Introduction (Bioenergetics)
    1. Basic Introduction (Bioenergetics)
      10345 views
      2. Oxidation-Reduction Reactions
    2. Oxidation-Reduction Reactions
      8855 views
      3. Role of ATP as Energy Currency
    3. Role of ATP as Energy Currency
      11149 views
      7.2: Photosynthesis (Practice Test)
      Photosynthesis
    1. Photosynthesis
      3647 views
      2. Mechanism of Photosynthesis
    2. Mechanism of Photosynthesis
      3167 views
      3. Light Reaction of Photosynthesis
    3. Light Reaction of Photosynthesis
      5894 views
      4. Cyclic Phosphorylation
    4. Cyclic Phosphorylation
      15873 views
      5. More on Dark Reaction
    5. More on Dark Reaction
      4428 views
      6. Role of Chlorophyll and Light
    6. Role of Chlorophyll and Light
      8955 views
      7. Limiting Factors in Photosynthesis
    7. Limiting Factors in Photosynthesis
      3961 views
      8. Is Carbon Dioxide Needed for Photosynthesis? Is Oxygen Produced During Photosynthesis?
    8. Is Carbon Dioxide Needed for Photosynthesis? Is Oxygen Produced During Photosynthesis?
      7.3: Respiration (Practice Test)
      Aerobic and Anaerobic Respiration
    1. Aerobic and Anaerobic Respiration
      8937 views
      2. Anaerobic Respiration
    2. Anaerobic Respiration
      9665 views
      3. Glycolysis
    3. Glycolysis
      5679 views
      4. Krebs Cycle
    4. Krebs Cycle
      6354 views
      5. Components of Electron Transport Chain
    5. Components of Electron Transport Chain
      6. The Energy Budget of Respiration
    6. The Energy Budget of Respiration
      7883 views
      7. Comparison of Photosynthesis and Respiration
    7. Comparison of Photosynthesis and Respiration
      3194 views
      8. Comparison of Aerobic and Anaerobic Respiration
    8. Comparison of Aerobic and Anaerobic Respiration
      1915 views

    Chapter 8 Nutrition ( 33 videos)  (Practice Test)

      8.1: Mineral Nutrition In Plants (Practice Test)
      Micronutrients and Macronutrients
    1. Micronutrients and Macronutrients
      7599 views
      2. Role of Nitrogen and Magnesium
    2. Role of Nitrogen and Magnesium
      5172 views
      3. Importance of Fertilizers
    3. Importance of Fertilizers
      4217 views
      4. Environmental Hazards Related to Fertilizers Use
    4. Environmental Hazards Related to Fertilizers Use
      2189 views
      8.2: Components of Human Food (Practice Test)
      Carbohydrates
    1. Carbohydrates
      3936 views
      2. Fatty Acids to Lipids
    2. Fatty Acids to Lipids
      951 views
      3. Proteins
    3. Proteins
      4718 views
      4. Fatty Acids and Glycerol to Lipids
    4. Fatty Acids and Glycerol to Lipids
      2055 views
      5. Minerals
    5. Minerals
      1917 views
      6. Role of Calcium and Iron
    6. Role of Calcium and Iron
      2659 views
      7. Vitamin A
    7. Vitamin A
      3466 views
      8. Vitamin C and D
    8. Vitamin C and D
      2591 views
      9. Water and Dietary Fiber
    9. Water and Dietary Fiber
      3963 views
      10. A Balance Diet
    10. A Balance Diet
      2452 views
      11. Food And Energy
    11. Food And Energy
      12. Causes of Malnutrition, Protein-Energy Malnutrition
    12. Causes of Malnutrition, Protein-Energy Malnutrition
      2683 views
      13. Protein - Energy Malnutrition
    13. Protein - Energy Malnutrition
      6981 views
      14. Mineral Deficiency Diseases
    14. Mineral Deficiency Diseases
      2625 views
      15. Over-nutrition
    15. Over-nutrition
      1824 views
      16. Effects of Malnutrition
    16. Effects of Malnutrition
      1810 views
      17. Famine
    17. Famine
      1566 views
      8.3: Digestion In Human (Practice Test)
      Digestion in Human
    1. Digestion in Human
      9054 views
      2. Human Digestive System (Stomach and Small Intestine)
    2. Human Digestive System (Stomach and Small Intestine)
      3. Human Alimentary Canal
    3. Human Alimentary Canal
      5890 views
      4. Digestion in Oral Cavity
    4. Digestion in Oral Cavity
      8759 views
      5. Digestion in Pharynx and Oesophagus
    5. Digestion in Pharynx and Oesophagus
      6713 views
      6. Digestion in Stomach
    6. Digestion in Stomach
      11097 views
      7. Digestion in Small Intestine
    7. Digestion in Small Intestine
      8002 views
      8. More on Digestion and Absorption of Food in the Small Intestine
    8. More on Digestion and Absorption of Food in the Small Intestine
      3743 views
      9. Digestion in Large Intestine
    9. Digestion in Large Intestine
      6785 views
      10. Role of Liver in Digestion
    10. Role of Liver in Digestion
      6945 views
      8.4: Disorders of Gut (Practice Test)
      Diarrhoea and Vomiting
    1. Diarrhoea and Vomiting
      3679 views
      2. Constipation, Ulcer
    2. Constipation, Ulcer
      2885 views

    Chapter 9 Transport ( 28 videos)  (Practice Test)

      9.1: Transport in Plants (Practice Test)
      Water and Ion Uptake
    1. Water and Ion Uptake
      7902 views
      2. Transpiration
    2. Transpiration
      4807 views
      3. Opening and Closing of Stomata
    3. Opening and Closing of Stomata
      12113 views
      4. Factors Affecting the Rate of Transpiration
    4. Factors Affecting the Rate of Transpiration
      5640 views
      5. Significance of Transpiration
    5. Significance of Transpiration
      4220 views
      6. Transport of Water
    6. Transport of Water
      4618 views
      7. Transport of Food
    7. Transport of Food
      8089 views
      9.2: Transport in Human (Practice Test)
      Blood, Blood Plasma
    1. Blood, Blood Plasma
      5759 views
      2. Blood Cells
    2. Blood Cells
      4336 views
      3. White Blood Cells and Platelets
    3. White Blood Cells and Platelets
      5143 views
      4. Blood Disorders, Anaemia, Haemophilia
    4. Blood Disorders, Anaemia, Haemophilia
      3401 views
      5. Leukemia
    5. Leukemia
      1348 views
      6. Thalassemia
    6. Thalassemia
      1651 views
      7. ABO Blood Group System
    7. ABO Blood Group System
      5186 views
      8. Blood Transfusion
    8. Blood Transfusion
      9. Blood Transfusion In Rh Blood Group System
    9. Blood Transfusion In Rh Blood Group System
      10. Rh Blood Group System
    10. Rh Blood Group System
      675 views
      11. Human Heart
    11. Human Heart
      18062 views
      12. Circulation of Blood Inside Heart
    12. Circulation of Blood Inside Heart
      5994 views
      13. More on Pulmonary Circulation
    13. More on Pulmonary Circulation
      599 views
      14. More on Systemic Circulation
    14. More on Systemic Circulation
      530 views
      15. Heartbeat
    15. Heartbeat
      5655 views
      16. Comparison of Arteries, Capillaries and Veins
    16. Comparison of Arteries, Capillaries and Veins
      3363 views
      17. Cardiovascular System
    17. Cardiovascular System
      18. Arterial System
    18. Arterial System
      6883 views
      19. Venous System
    19. Venous System
      4938 views
      9.3: Cardiovascular Disorders (Practice Test)
      Atherosclerosis and Arteriosclerosis
    1. Atherosclerosis and Arteriosclerosis
      5897 views
      2. Myocardial Infarction
    2. Myocardial Infarction
      2775 views