1. Light as a Factor in Photosynthesis
GERANIUM LEAF LAB

2. Sketch the
Geranium
leaf.
Color
matters!

3. Sketch the
leaf with
part being
covered
to prevent
exposure
to light

4. Sketch the
Geranium
leaf after
treatment
(boiling)
in warm
alcohol

5. Sketch
the
Geranium
leaf
after
treatment
with
Lugols

6. Questions to consider: What effect did the paper have on the leaf?
Why did this happen?
Write a brief conclusion
for this lab.

7. Pigment as a Factor in Photsynthesis
Coleus Leaf Lab

8. Sketch the Original variegated Coleus leaf shown
Color matters!

9. Sketch the Coleus leaf after treatment (boiled) with alcohol

10. Sketch the Coleus leaf after treatment with Lugols

11. QUESTIONS TO CONSIDER: What did the Lugol’s indicate about the leaf?
Where is this substance found in the leaf?
Write a brief conclusion for this experiment.

12. Gas as a factor in Photsynthesis
Elodea Lab

13. Sketch the bottle with Elodea and BTB, remember color matters!
DAY 1 in Light
Sketch the bottle with Elodea and BTB, remember color matters!

14. Sketch the bottle with Elodea and BTB, remember color matters!
DAY 2 after 24 hours
Sketch the bottle with Elodea and BTB, remember color matters!

15. Questions to consider: What changes did you observe in the bottle?
Why did these changes occur?
What does this indicate?
Write a brief conclusion for this experiment.

16. Photosynthesis
Process of converting suns energy into chemical energy (food)
ATP is the ‘fuel’ for the plant
Usable energy
Plants need
Sunlight ( leaves are like solar panels)
Water (roots take in water)
Chlorophyll (green parts)
CO2 ( enters through small porous openings under the leafs)

17. Photosynthesis Plants take in the previous four substances
Sugar is produced
Used for food
Release O2
WHAT WE BREATHE!
General Equation:
6CO2 + 6H C6H12O6 + 6O2