University:
Colgate University
Course:
BIOL 315 | Biology of Plants
Academic year:

2022
Views:

376

Pages:

2
Author:

lorenzops0

Name: Photosynthesis Virtual Lab Introduction: During the process of photosynthesis, oxygen is released. The release of oxygen can be visibly observed in aquatic plants as bubbles. Counting the number of bubbles released over a period of time can serve as a measurement of the rate of photosynthesis. There are factors that can increase the rate of photosynthesis in plants. This simulation will explore those factors. Procedure: You will change the variables and record the number of bubbles released in a minute. Use the clock and the start / stop buttons. Experiment 1: How Does Changing the Light Intensity and Distance Affect Photosynthesis? 1. Make a prediction about what you think will happen: As you increase the light intensity, the number of bubbles will increase 2. Start with the 40W power source and observe one minute. Leave the distance at 50 cm for each trial in this section. Reset and switch to 100 W. Record data in the Data table . 3. Reset the simulation and test how changing the distance from the light will affect the rate of photosynthesis. 4. Prediction: As you increase the distance of the light, the number of bubbles will Number of Bubbles (1 Min) Light Intensity (at 50 cm) Light Distance (100 W bulbs ) 40 W (50cm) 100 W (50 cm) 50 cm 100 cm 4 7 6 4 5. Summarize the results and provide an explanation or reasoning for what was observed. How does light intensity and distance affect the rate of photosynthesis? How do you know? The amount of light, more light, and closer it is, more photosynthesis would process bubbles while ones with a far distance or low wattage would produce less bubbles . . 6 In this experiment, the independent (manipulated ) variable is the dependent (responding ) variable the a b ^ a ) light a) light b) number of bubbles b) number of bubbles

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