NOTES

​1. Characteristics and Classification of Living Organisms Revision Notes:

• 1.1) Characteristics of living organisms
• 1.2) Concept and use of classification system
• 1.3) Features of organisms
• 1.4) Dichotomous keys

2. Organisation of the Organism Revision Notes:

• 2.1) Cell structure and organisation
• 2.2) Levels of organisation
• 2.3) Size of specimens

3. Movement In and Out of Cells Revision Notes:

• 3.1) Diffusion
• 3.2) Osmosis
• 3.3) Active transport

4. Biological Molecules Revision Notes:

• 4) Biological molecules

5. Enzymes Revision Notes:

• 5) Enzymes

6. Plant Nutrition Revision Notes:

• 6.1) Photosynthesis
• 6.2) Leaf structure
• 6.3) Mineral requirements

7. Human Nutrition Revision Notes:

• 7.1) Diet
• 7.2) Alimentary canal
• 7.3) Mechanical digestion
• 7.4) Chemical digestion
• 7.5) Absorption

8. Transport in Plants Revision Notes:

• 8.1) Transport in plants
• 8.2) Water uptake
• 8.3) Transpiration
• 8.4) Translocation

9. Transport in Animals Revision Notes:

• 9.1) Transport in animals
• 9.2) Heart
• 9.3) Blood and lymphatic vessels
• 9.4) Blood

10. Diseases and Immunity Revision Notes:

• 10) Diseases and immunity

11. Gas Exchange in Humans Revision Notes:

• 11) Gas exchange in humans

12. Respiration Revision Notes:

• 12.1) Respiration
• 12.2) Aerobic respiration
• 12.3) Anaerobic respiration

13. Excretion in Humans Revision Notes:

• 13) Excretion in humans

14. Coordination and Response Revision Notes:

• 14.1) Nervous control in humans
• 14.2) Sense organs
• 14.3) Hormones in humans
• 14.4) Homeostasis
• 14.5) Tropic responses

15. Drugs Revision Notes:

• 15.1) Drugs
• 15.2) Medicinal drugs
• 15.3) Misused drugs

16. Reproduction Revision Notes:

• 16.1) Asexual reproduction
• 16.2) Sexual reproduction
• 16.3) Sexual reproduction in plants
• 16.4) Sexual reproduction in humans
• 16.5) Sex hormones in humans
• 16.6) Methods of birth control in humans
• 16.7) Sexually transmitted infections (STIs)

17. Inheritance Revision Notes:

• 17.1) Inheritance
• 17.2) Chromosomes, genes and proteins
• 17.3) Mitosis
• 17.4) Meiosis
• 17.5) Monohybrid inheritance

18. Variation and Selection Revision Notes:

• 18.1) Variation
• 18.2) Adaptive features
• 18.3) Selection

19. Organisms and their Environment Revision Notes:

• 19.1) Energy flow
• 19.2) Food chains and food webs
• 19.3) Nutrient cycles
• 19.4) Population size

20. Biotechnology and Genetic Engineering Revision Notes:

• 20.1) Biotechnology and genetic engineering
• 20.2) Biotechnology
• 20.3) Genetic engineering

21. Human Influences on Ecosystems Revision Notes:

• 21.1) Food supply
• 21.2) Habitat destruction
• 21.3) Pollution
• 21.4) Conservation

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