Class 10 Biology – Life Processes (10
Pages)
Cover + Introduction
1. Life processes = essential activities that keep organisms alive
2. Without them, organisms can’t survive
3. Main processes: Nutrition, Respiration, Transport, Excretion, Coordination,
Reproduction
4. [Draw cover diagram / plant + human body illustration]
Nutrition: Autotrophic
5. Autotrophic organisms make their own food (Plants)
6. Photosynthesis: 6CO2 + 6H2O + sunlight -> C6H12O6 + 6O2
7. Process steps: Light absorption, CO2 & H2O conversion to glucose, Oxygen released
8. Examples: Green plants, algae
9. Important: Chlorophyll is essential
10. [Draw diagram of Photosynthesis]
Nutrition: Heterotrophic
11. Heterotrophic organisms depend on others for food
12. Types: Saprophytes (feed on dead matter), Parasites (feed on living host), Holozoic
(take solid food)
13. Human digestive system: Mouth → Esophagus → Stomach → Small intestine → Large
intestine → Rectum → Anus
14. [Draw human digestive system]
Respiration: Aerobic
15. Aerobic = needs oxygen, produces more energy
16. Equation: Glucose + O2 -> CO2 + H2O + Energy (ATP)
17. Energy use: Muscle contraction, growth, repair, metabolism
18. Human respiratory system: Nose → Trachea → Lungs → Bronchi → Alveoli
19. [Draw lungs diagram]
Respiration: Anaerobic
20. Anaerobic = no oxygen, less energy
21. Equation in humans: Glucose -> Lactic acid + Energy
Pages)
Cover + Introduction
1. Life processes = essential activities that keep organisms alive
2. Without them, organisms can’t survive
3. Main processes: Nutrition, Respiration, Transport, Excretion, Coordination,
Reproduction
4. [Draw cover diagram / plant + human body illustration]
Nutrition: Autotrophic
5. Autotrophic organisms make their own food (Plants)
6. Photosynthesis: 6CO2 + 6H2O + sunlight -> C6H12O6 + 6O2
7. Process steps: Light absorption, CO2 & H2O conversion to glucose, Oxygen released
8. Examples: Green plants, algae
9. Important: Chlorophyll is essential
10. [Draw diagram of Photosynthesis]
Nutrition: Heterotrophic
11. Heterotrophic organisms depend on others for food
12. Types: Saprophytes (feed on dead matter), Parasites (feed on living host), Holozoic
(take solid food)
13. Human digestive system: Mouth → Esophagus → Stomach → Small intestine → Large
intestine → Rectum → Anus
14. [Draw human digestive system]
Respiration: Aerobic
15. Aerobic = needs oxygen, produces more energy
16. Equation: Glucose + O2 -> CO2 + H2O + Energy (ATP)
17. Energy use: Muscle contraction, growth, repair, metabolism
18. Human respiratory system: Nose → Trachea → Lungs → Bronchi → Alveoli
19. [Draw lungs diagram]
Respiration: Anaerobic
20. Anaerobic = no oxygen, less energy
21. Equation in humans: Glucose -> Lactic acid + Energy
