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Photosynthesis and respiration in ecosystems
1. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
2. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Photosynthesis Involves
3. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Photosynthesis Involves
•Inputs
4. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Photosynthesis Involves
•Inputs
•Processes
5. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Photosynthesis Involves
•Inputs
•Processes
•Outputs
6. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Inputs of Water, Carbon Dioxide
Photosynthesis Involves
Light energy is trapped
and Sunlight
by the chlorophyll
inside the chloroplasts
•Inputs
•Processes
•Outputs
Oxygen is realesed Energy is released, splitting
to the atmosphere water into hydrogen and
oxygen
The hydrogen combines with
carbon dioxide to make glucose
7. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
8. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Inputs
9. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Inputs
•Sunlight
10. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Inputs
•Sunlight
•Carbon dioxide
11. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Inputs
•Sunlight
•Carbon dioxide
•Water
12. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Inputs
Carbon Dioxide
•Sunlight Sunlight from the atmosphere
•Carbon dioxide
•Water
Water from
the soil
13. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
14. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Process
15. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Process
• Chlorophyll traps sunlight
16. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Process
• Chlorophyll traps sunlight
• The energy splits water
molecules
17. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Process
• Chlorophyll traps sunlight
• The energy splits water
molecules
• Combines the hydrogen
liberated with Carbon dioxide
18. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Light energy is trapped
by the chlorophyll
Process inside the chloroplasts
• Chlorophyll traps sunlight
• The energy splits water
molecules Energy is released, splitting
Oxygen is realesed water into hydrogen and
oxygen
• Combines the hydrogen
liberated with Carbon dioxide The hydrogen combines with
carbon dioxide
19. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
20. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Outputs
21. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Outputs
• Glucose used as an
energy source by the
plant
22. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Outputs
• Glucose used as an
energy source by the
plant
• Oxygen released to the
atmosphere
23. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Outputs
Glucose produced
used as energy
source by whole plant
• Glucose used as an
energy source by the Oxygen Released
plant
• Oxygen released to the
atmosphere
24. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
25. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Photosynthesis
26. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Photosynthesis
• Light energy
27. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Photosynthesis
• Light energy
• To
28. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Photosynthesis
• Light energy
• To
• Stored chemical energy
29. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
30. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
What does it do?
31. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
What does it do?
• Powers the whole
ecosystem
32. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
What does it do?
• Powers the whole
ecosystem
33. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
34. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Producers are
35. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Producers are
• the starting point of all
energy available for an
ecosystem
36. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Producers are
Trophic Level 4 Tertiary Consumer
• the starting point of all
energy available for an Trophic Level 3 Secondary Consumer
ecosystem
Trophic Level 2 Primary Consumer
Trophic Level 1 Producer
37. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
38. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Respiration
39. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Respiration
• the release of energy
from glucose or other
organic substances
inside living cells
40. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Respiration
Glucose Energy Released
• the release of energy
Oxygen Carbon Dioxide
from glucose or other and Water
organic substances Conversion
inside living cells process
(respiration)
41. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Carbon dioxide
and water vapour released
Oxygen from
the atmosphere Energy lost as Heat
Food in
Cellular respiration
Oxidation of Glucose
Releases energy to
drive life processes
42. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Carbon dioxide
Respiration and water vapour released
Oxygen from
the atmosphere Energy lost as Heat
Food in
Cellular respiration
Oxidation of Glucose
Releases energy to
drive life processes
43. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Carbon dioxide
Respiration and water vapour released
• Inputs of Glucose and Oxygen Oxygen from
the atmosphere Energy lost as Heat
Food in
Cellular respiration
Oxidation of Glucose
Releases energy to
drive life processes
44. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Carbon dioxide
Respiration and water vapour released
• Inputs of Glucose and Oxygen Oxygen from
the atmosphere Energy lost as Heat
• Oxidation process in the cells
Food in
Cellular respiration
Oxidation of Glucose
Releases energy to
drive life processes
45. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Carbon dioxide
Respiration and water vapour released
• Inputs of Glucose and Oxygen Oxygen from
the atmosphere Energy lost as Heat
• Oxidation process in the cells
Food in
• Release of energy for work and
heat Cellular respiration
Oxidation of Glucose
Releases energy to
drive life processes
46. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
47. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Respiration
48. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Respiration
• Stored chemical energy
49. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Respiration
• Stored chemical energy
• To
50. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Respiration
• Stored chemical energy
• To
• Kinetic energy and
51. Topic 2: Ecosystems
2.2: Function of Ecosystems
2.2.2: Photosynthesis and Respiration in Ecosystems
Transformations: Respiration
• Stored chemical energy
• To
• Kinetic energy and
• Heat