Light as a Factor in

PhotosynthesisGERANIUM LEAF LAB

Pigment as a Factor in

PhotsynthesisColeus Leaf Lab

Sketch the Original

variegated Coleus

leaf shownColor

matters!

Sketch the Coleus leaf

after treatment (boiled)

with alcohol

Sketch the Coleus leaf

after treatment

with Lugols

QUESTIONS TO CONSIDER:

1.What did the Lugol’s indicate about the leaf?

2.Where is this substance found in the leaf?

3.Write a brief conclusion for this experiment.

Elodea Lab

Gas as afactor in

Photsynthesis

Sketch the bottle

with Elodea

and BTB, remembe

r color matters!

DAY 1 in Light

Sketch the bottle with Elodea and

BTB, remember

color matters!

DAY 2 after 24 hours

Questions to consider:

1.What does BTB test for?

2.What changes did you observe in the bottle?

3.Why did these changes occur?

4.What does this indicate?

5.Write a brief conclusion for this experiment.