Observe the left pane closely. What do you think the bubbles are?
  • in the middle for all of them
  • I think warmer colors will maximize the rate of photosynthesis
  • I think the bubbles are oxygen.
  • i think the limiting factor was the CO2 level
Move the CO2 level slider back and forth. Were you able to increase oxygen production? (Return the slider to 200 ppm when finished.)
  • no
  • yes
  • Light intensity affects oxygen production. The more light there is the more oxygen is produced.
  • Oxygen
Select the BAR CHART tab. On the graph, notice the Oxygen production bar. Move the Light intensity slider back and forth. How does light intensity affect oxygen production?
  • the more green there is the less oxygen is produced?
  • there is a lot of oxygen flowing in green light which makes it harder for plants to get carbon dioxide
  • More oxygen being produced meant the plant is healthy and doing what it's supposed to do
  • Light intensity affects oxygen production. The more light there is the more oxygen is produced.
C. How does oxygen production relate to the rate of photosynthesis?
  • after a certain amount, any more doesn't do anything but if there isn't any CO2 then there also isn't any oxygen
  • If it was hot there would probably be a lot of light and vice-versa
  • More oxygen being produced meant the plant is healthy and doing what it's supposed to do
  • it has to be temperate to have the most oxygen. too cold and oxygen production stops and too hot same thing happens
B. How does CO2 level affect oxygen production?
  • If it was hot there would probably be a lot of light and vice-versa
  • after a certain amount, any more doesn't do anything but if there isn't any CO2 then there also isn't any oxygen
  • More oxygen being produced meant the plant is healthy and doing what it's supposed to do
  • it has to be temperate to have the most oxygen. too cold and oxygen production stops and too hot same thing happens
Light intensity
  • Plants
  • 62%
  • 460 ppm
  • yes
Observe: The color of a light wave is determined by its wavelength. On the COLOR tab, slowly drag the Light wavelength slider back and forth and observe the effect on oxygen production. How does the color of light affect the rate of photosynthesis?
  • the more green there is the less oxygen is produced?
  • I think the bubbles are oxygen.
  • there is a lot of oxygen flowing in green light which makes it harder for plants to get carbon dioxide
  • I think warmer colors will maximize the rate of photosynthesis
Move the Light intensity slider back and forth. Were you able to increase oxygen production? (Return the slider to 50% when finished.)
  • in the middle for all of them
  • Light intensity affects oxygen production. The more light there is the more oxygen is produced.
  • yes
  • no
Think and discuss: When we look at a leaf, we see the colors of light that are reflected off its surface. How does this explain the relatively low flow of oxygen in green light?
  • there is a lot of oxygen flowing in green light which makes it harder for plants to get carbon dioxide
  • the more green there is the less oxygen is produced?
  • If it was hot there would probably be a lot of light and vice-versa
  • Light intensity affects oxygen production. The more light there is the more oxygen is produced.
In the Gizmo, what light intensity and CO2 level do you think will maximize the rate of photosynthesis?
  • I have no clue
  • in the middle for all of them
  • I think the bubbles are oxygen.
  • If it was hot there would probably be a lot of light and vice-versa
Temperature
  • 62%
  • 24
  • 48.6
  • no
A. Why would it be hard to find the ideal light intensity if the temperature were very hot or cold?
  • If it was hot there would probably be a lot of light and vice-versa
  • I think warmer colors will maximize the rate of photosynthesis
  • I have no clue
  • it has to be temperate to have the most oxygen. too cold and oxygen production stops and too hot same thing happens
How do you know?
  • I think warmer colors will maximize the rate of photosynthesis
  • once that slider was moved more oxygen was being produced
  • after a certain amount, any more doesn't do anything but if there isn't any CO2 then there also isn't any oxygen
  • If it was hot there would probably be a lot of light and vice-versa
Move the Temperature slider up and down. Were you able to increase oxygen production? (Return the slider to 24°C when finished.)
  • yes
  • in the middle for all of them
  • Light intensity affects oxygen production. The more light there is the more oxygen is produced.
  • no
CO2 level
  • Oxygen
  • 460 ppm
  • 62%
  • Plants
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