Graded Activity: Photosynthesis

Last updated over 3 years ago

In this Gizmo, you will be measuring the rates of photosynthesis. You will follow directions to change 4 variables (Only one at a time) to find the ideal conditions for oxygen production for this particular plant. Instructions will be provided at the beginning of each question. 

Each Question (except for the last question) is a multiple select question. Some questions will have multiple answers. Some questions will have only one answer. 

Please ensure you are still logged into your Gizmo account or you will experience a 5 minute time limit. 

Code: 
LB4WPR

Do NOT complete the attached quiz following the interactive in the Gizmo itself. It will not be checked nor graded.
Only complete the questions below in the Formative.

Here is a link if you are unable to use the embedded Gizmo.
https://gizmos.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=395

Start with the Gizmo and select the "Color" Tab.
The first variable we are testing is the light wavelength.
Leave the temperature at 30 degrees.
Leave the light intensity at 30%
Leave the CO2 levels at 500 ppm
Start testing the light wavelength by moving the bar all the way to the left, and then move the bar over 50nm at a time. Start at 400 nm
Your starting point should look like this image below:
Moving the Light Wavelenth 50nm at a time, which Wavelength produced the most Oxygen (O2)?
(Select all that apply)

Start with the Gizmo and select the "Color" Tab.
The second variable we are testing is the CO2 level.
Leave the temperature at 30 degrees.
Leave the light intensity at 30%
Leave the light wavelength at 400 nm
Start testing the CO2 levels by moving it all the way to the left, and then move the bar over 100 ppm at a time. Start at 0 ppm
Your starting point should look like this image below:

Moving the CO2 Level 100 ppm, which CO2 level produced the most Oxygen (O2)?
(Select all that apply)

Start with the Gizmo and select the "Color" Tab.
The Third variable we are testing is the light intensity.
Leave the temperature at 30 degrees.
Move the CO2 levels to 1000 ppm.
Leave the light wavelength at 400 nm
Start testing the light intensity my moving the bar all the way to the left, and then move the bar over 10% at a time. Start at 0%

Your starting point should look like this image below:

Moving the Light Intensity 10% at a time, which Intensity level produced the most Oxygen (O2)?
(Select all that apply)

Start with the Gizmo and select the "Color" Tab.
The fourth, and final, variable we are testing is the Temperature.
Move the light intensity to 100%
Move the CO2 level to 1000 ppm
Move the light wavelength to 400 nm
Start testing the the temperature my moving the bar all the way to the bottom, and start moving the bar up 5 degrees at a time.
Start at 0 degrees.

Your starting point should look like this image below:

Moving the Temperature 5c at a time, which Temperature produced the most Oxygen (O2)?
(Select all that apply)

What combination of variables produced the most O2?
Was it simply a combination of the above answers? Was it different?

Use the free response below to share a screenshot of your final, most O2 productive, set up and explain why you think that changing these variables input levels will impact photosynthesis'output.
(You can add your screenshare in "Show Your Work")