The gas is produced from plants in photosynthesis.
question
Observe the left pane closely. What do you think the bubbles are?
answer
In my opinion, the bubbles are the oxygen that the plant is giving off.
question
On the graph, notice the Oxygen production bar. Move the Light intensity slider back and forth. How does light intensity affect oxygen production?
answer
If the light intensity is high and the CO2 level is high then more oxygen is created.
question
How does temperature affect oxygen production?
answer
Temperatures between 17 and 31 degrees do not have an affect on
oxygen production. When the temperature exceeds 31 degrees the
production of oxygen decreases.
question
How does CO2 level affect oxygen production?
answer
A CO2 level of a ppm of 230 and above has no impact on the oxygen
production. When lower than 230ppm oxygen production along with CO2
levels decrease.
question
How does oxygen production relate to the rate of photosynthesis?
answer
A greater flow of oxygen corresponds to a higher rate of photosynthesis.
question
In the Gizmo, what light intensity and CO2 level do you think will maximize the rate of photosynthesis?
answer
The highest light intensity and CO2 level will maximize the rate of photosynthesis.
question
Why would it be hard to find the ideal light intensity if the temperature were very hot or cold?
answer
If the temp were extremely hot or cold, then oxygen production would be near zero no matter what light intensity value you use.
question
Why would it be hard to find the ideal CO2 level if the light intensity were very low?
answer
If the light intensity were very low, then the oxygen production would be near zero no matter what C02 level you use.
question
How does the color of light affect the rate of photosynthesis?
answer
The color of light affects the rate of photosynthesis when the production of oxygen increases at 450 nm (blue), drops, then rise again at 660 nm (orange).
question
Which color of light do you think will maximize the rate of photosynthesis?
answer
I think that the color blue will maximize the rate of photosynthesis because I found it to be most effective at increasing the production of oxygen.
question
Which colors were absorbed best by the plant?
answer
Red-orange and blue-violet
question
Which colors were absorbed the worst?
answer
Green, yellow, violet, and red.
question
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?
answer
The plant is reflecting the green light instead of absorbing the needed light.
question
Were you able to increase oxygen production? (Return the slider to 24°C when finished.)
answer
No, I was not able to because oxygen production cannot increase more than 24C.
question
Were you able to increase oxygen production? (Return the slider to 50% when finished.)
answer
No, I was not able to increase oxygen production because with a higher CO2 level the production increased.
question
Were you able to increase oxygen production? (Return the slider to 200 ppm when finished.)
answer
Yes, I was able to increase oxygen production because with a higher CO2 level the production increased.
question
Suppose you were a farmer trying to grow plants in a greenhouse. Why would it be important to know what the limiting factor is?
answer
If I was a farmer trying to grow plants in a greenhouse it would be important for me to know what the limiting factor of the plant is, I would save a lot of money. This is because I would know which parts of the greenhouse are the only parts necessary to get the results I want. By knowing what the limiting factor is, a farmer can be more efficient in knowing which plants produce and how to produce plants with a higher rate of photosynthesis with less exhaust of material and time.
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