0

.pdf

School

Nevada Learning Academy *

*We aren’t endorsed by this school

Course

10104AD2

Subject

Biology

Date

Jun 22, 2024

Type

pdf

Pages

10

Uploaded by ProfessorSteel14341

M3 L1: Gizmo Simulation Lab: Photosynthesis Name: martin Date: 6/18/24 What did you eat for breakfast, lunch, and dinner yesterday? Imagine that your body made its own food, internally. Sound crazy? Plants do this all the time. Plants make their own food in a process called photosynthesis . In photosynthesis, plants use sunlight, carbon dioxide (CO 2 ), and water (H 2 O) to make sugars, which provide them with the energy they need to live as well as the raw materials they need to grow. As a byproduct of photosynthesis, plants produce and release oxygen (O 2 ). A. Photosynthesis and Light Intensity 1. In the Gizmo™, observe the aquatic plant. During photosynthesis, the plant produces oxygen, which is visible as bubbles leaving the plant. Set the Light intensity to 0%. (To quickly set a slider to a specific value, type the number in the field to the right of the slider and press Enter.) Check that the Temperature slider is set to 30.0°C and the CO2 level is set to 500ppm. Then select the BAR CHART tab. What is the rate of oxygen production? 0 What does this tell you about the rate of photosynthesis when no light is present? Explain your answer. This tells me that since there's no light, there's no photosynthesis being made or occur. 2. Slowly drag the Light intensity slider up to 40%. What happens to the rate of oxygen production as the light intensity increases? The rate of oxygen increases as the light intensity increases What does this tell you about the rate of photosynthesis as the light intensity increases? This tells me that the more light that being used, the more oxygen or photosynthesis occurs. Does increasing light intensity always have the same effect on oxygen production? In other words, experiment with the light slider to see if there are there certain light intensity changes that have no effect at all? Describe what you see. Well when I turned up the light intensity to over 40 (53%), the amount of oxygen being produced just stayed the same 3. Select the TABLE tab. You will now use the table to record data on oxygen production at different intensities of light. 4. Set the Light intensity to 0%. Click on the Record Data button to record this information in the table. Increase the light intensity in increments of ten up to 100% and record data each time. Does your data agree with your findings in step 2c? Explain why or why not. Yes my data agrees because I turned the light intensity to 100% and the oxygen stayed the Revised by NVLA: 10/15/2020
M3 L1: Gizmo Simulation Lab: Photosynthesis same. 5. To view a graph of your data, select the GRAPH tab. Be sure that Intensity is selected from the options below the graph. Click on the camera icon in the upper right corner to take a snapshot of the graph. Insert the camera shot of your graph in the space to the right. Describe the shape of the graph. Oxygen Production vs. Light Intensity Graph The shape is a line that evens out when it gets to 40% Revised by NVLA: 10/15/2020
M3 L1: Gizmo Simulation Lab: Photosynthesis B. Photosynthesis and Carbon Dioxide Level During photosynthesis, plants use carbon dioxide (CO2) as a source of carbon, which is used to build an energy-rich sugar called glucose. Does the amount of CO2 available influence the rate of photosynthesis? To find out, you will measure the rate of photosynthesis at different CO2 levels. 6. Click on the BAR CHART tab. The CO2 level indicates the amount of dissolved CO2. Set the Light intensity slider to 90% and the Temperature to 30.0°C. Set the CO2 level slider to 0.0 ppm. What is the rate of oxygen production when there is no carbon dioxide available? 0 7. Slowly drag the CO2 level slider to the right up to 200 ppm. What happens to the rate of oxygen production as the CO2 level increases? As the CO2 level increases, the oxygen level decreses What happens when the CO2 level exceeds 300 ppm? When I increased the CO2 level to 300, the oxygen level increased. 8. Select the GRAPH tab, and select CO2 from the options below the graph. Click Clear Data. Create a graph of oxygen production vs. CO2 concentration. Record the oxygen production when the CO2 concentration is 100 ppm, 200 ppm, 300 ppm, and so on up to 1000 pm. Be sure to click on Record Data each time so all of the data is recorded in your table. Click on the camera icon in the upper right corner to take a snapshot of the graph. Insert the camera shot of your graph in the space to the right. Oxygen Production vs. CO2 Concentration Revised by NVLA: 10/15/2020
M3 L1: Gizmo Simulation Lab: Photosynthesis How is this graph similar to the light intensity graph? It's similar because in the light intensity graph, the line evened out when it reached 40, now in the oxygen flow graph, the line evened out at 400. Basically, both lines reached out when it reached 4, or 40. Revised by NVLA: 10/15/2020
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help