- Photosynthesis Lab
Observe the Geranium leaves, a photosynthesis demonstration. Photosynthesis is the process that plants use to convert CO2 into carbohydrates (sugar), photosynthesis is also the metabolic process that literally feeds the world. The carbohydrates produced by photosynthesis are frequently initially stored (as starch) and are later used by the plant (or us) for food. Click the red button to start, click again to continue.

Questions:

1. What pigment is indicated by the arrow in the below chromatogram?

Chlorophyll A
Chlorophyll B
Xanthophyll
Carotene

2. What substance does IKI stain?

Chlorophyll
Glucose
Sucrose
Starch

3. Describe and explain any differences between the leaves in the Geranium experiment.