2. Are you a producer or a consumer?

3. Autotroph: An organism that is capable of making its own food (Producer)
Heterotroph: An organism that must obtain food and energy from other sources. Otherwise, they have to EAT!! (Consumer)

4. The Green World’s Gift:
Photosynthesis

5. Photosynthesis and Energy
1. Try to name something you eat that isn’t from a plant or from an animal that ate a plant.
2. All food comes from plants. Molecules of our bodies are made from food we eat, but plants make their own food from sunlight. Food is used for:
a) Creating macromolecules from monomers like glucose and amino acids.

6. b) More importantly, food is used in respiration to generate cellular energy, ATP. Plants are the universal source of energy for all living things.

7. Photosynthesis in Nature
The process by which plants make their own food
Transforms solar energy into chemical energy.
CO2 and H2O into Glucose (a simple sugar)
CO2 is the carbon source and light is the energy source.

8. 6 CO2 + 6 H2O + energy  C6H12O6 + 6 O2

9. Raw Materials of Photosynthesis
CO2
H2O
energy

10. Products of Photosynthesis
Glucose
Oxygen

11. 4. Photosynthesis driven by only part of the visible spectrum (blue and red); plant pigments in the green plant reflects green and absorbs blue and red.

12. The substance in green plants that capture the sun’s light is the green pigment chlorophyll (found in chloroplasts, an organelle only found in plant cells)

13. Tour of a leaf, where plants absorb light:
1. Blade
Leaf section, epidermis,
stomata, mesophyll
Chloroplasts, inner
and outer membranes
4. Grana and stroma
Thylakoid membrane,
and compartment
6. Pigments

14. Stomates:
openings in the leaf

15. Leaf cross section

17. for respiration is produced as a by-product of photosynthesis.
Oxygen needed
for respiration is
produced as a
by-product of
photosynthesis.

18. Cellular Respiration
Any metabolic pathway used by living organisms to break down organic molecules and extract energy
In other words, changing food into energy.

19. The organic molecule that is being broken down is Glucose

20. Two categories of cellular respiration
Aerobic Cellular Respiration
Anaerobic Cellular Respiration

21. Aerobic Cellular Respiration – cellular respiration that requires oxygen, O2
C6H12O6 + 6O2 + ADP  6CO2 + 6H2O + ATP

22. Anaerobic Cellular Respiration
Does not require oxygen
Produces less energy than aerobic respiration
Produces lactic acid or ethyl alcohol
e.g. Lactic Acid Fermentation, Alcoholic fermentation

23. Where does it happen?
Respiration takes place both in plant and animal cells in an organelle called the mitochondria.

25. Raw Materials of Respiration
Glucose
Oxygen

26. Products of Respiration
Carbon Dioxide
Water
Energy

27. Answer these questions:
Has a pattern emerged?
How are photosynthesis and respiration dependent on one another?
Give 3 examples of autotrophs and heterotrophs