A Tree From the Air? 2

The CO2 concentration at the beginning of our experiment.

First, an initial reading is taken from the carbon dioxide analyzer to determine what the starting value is. From the display you can see the starting concentration is 367.1ppm.

The effect of light on our trees and plants.

Next these bright lights are shone on our ecosystem to simulate sunlight.

Which of the above processes, photosynthesis or respiration, will be primarily taking place in the trees and plants? What do you think will happen to the carbon dioxide concentration in the ecosystem? Lets take some readings from the analyzer to find out.

The carbon dioxide concentration decreased from 367.1 to 345.3 ppm because photosynthesis absorbed carbon dioxide from the atmosphere.

Photosynthesis and Respiration Experiment page 1 2 3 4 5

The CO2 concentration at the beginning of our experiment. First, an initial reading is taken from the carbon dioxide analyzer to determine what the starting value is. From the display you can see the starting concentration is 367.1ppm.
The effect of light on our trees and plants.
Next these bright lights are shone on our ecosystem to simulate sunlight.
Which of the above processes, photosynthesis or respiration, will be primarily taking place in the trees and plants? What do you think will happen to the carbon dioxide concentration in the ecosystem? Lets take some readings from the analyzer to find out.