Our Life and Chemistry

Punjab Board > Class 9 > General Science (Total Videos: 298)

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Chapter 2: Our Life and Chemistry (52 videos)   (Practice Test)
2.1: The Basic Building Elements  (Practice Test)
  1. Subatomic and Atomic Level, Molecular Level
  2. Metabolism
  3. Basic Elements of Life
  4. Digestion in Human
  5. Carbohydrates
  6. Fatty Acids to Lipids
  7. Lipids
2.2: Carbon  (Practice Test)
  1. Occurrence of Carbon
  2. Enzyme
  3. Allotropy and Allotropic Forms of Carbon
  4. Diamond
  5. Graphite
  6. Uses of Diamond and Graphite
  7. Amorphous Forms of Carbon, Coal
  8. Different Compounds of Carbon
  9. Photosynthesis
  10. Respiration
2.3: Water is Essential For Life  (Practice Test)
  1. Introduction to Water
  2. Human Blood
  3. Water as Universal Solvent
  4. ABO-Blood Group System
  5. Physical Properties of Water
  6. Rh Blood Group System
  7. Anamolous Behaviour of Water
  8. More on Anamolous Behaviour of Water
2.4: Composition of Air  (Practice Test)
  1. Composition of Atmosphere
  2. Watson-Crick Model of DNA
  3. Occurrence of Nitrogen
  4. Gene and Genome, Chromosome, Chromatin
  5. The Nitrogen Cycle
  6. Physical and Chemical Properties of Fertilizers
  7. Importance of Air
2.5: Importance and Functions of elements for the maintenance of our Health  (Practice Test)
  1. Genetic Engineering
  2. Importance of Elements in Our Life
  3. More on Importance of Elements in Our Life
  4. Genetic Modifications
  5. More on Importance of Elements in Our Life (continued)
  6. Uses of Calcium and Magnesium
  7. uses of Sodium,Calcium,Magnesium
  8. Uses of Chlorine
  9. Uses of Sulphur
  10. Uses of Iron and Steel
  11. Cast Iron
  12. Wrought Iron
  13. Steel Iron
  14. Intoduction to Alloys
  15. Brass
  16. Bronze
2.6: The Role of Biotechnology in Betterment of Crops  (Practice Test)
  1. Application of Transgenic Plants
2.7: Antibiotics and Vaccines  (Practice Test)
  1. Antibiotics
  2. Immunization and Vaccination
2.8: Recycling of waste and Scarce Materials  (Practice Test)
  1. 3 R, Reduce, Reuse and Recycle