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120 100 H00 100 80 70 d a 60 60 blue light i 50 50 red light si 40 k n 40 green light se 30 20 20 20 20 20 10 10 5 15 25 35 45 55 Time (min) 1. Which color of light stimulates photosynthesis most effectively? (use above graph) 2. If there were an excessive amount of algae growing in an aquarium, what color of light bulb should be used to reduce the growth?

120 100 H00 100 80 70 d a 60 60 blue light i 50 50 red light si 40 k n 40 green light se 30 20 20 20 20 20 10 10 5 15 25 35 45 55 Time (min) 1. Which color of light stimulates photosynthesis most effectively? (use above graph) 2. If there were an excessive amount of algae growing in an aquarium, what color of light bulb should be used to reduce the growth?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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revised - see attached. Thanks 

### The Effect of Light Color on Photosynthesis #### Graph Explanation: The graph presented illustrates the impact of light color on the rate of photosynthesis over time, specifically for blue, red, and green light. - **X-axis (horizontal):** Represents Time in minutes (min), ranging from 0 to 55 minutes. - **Y-axis (vertical):** Represents the percentage of floating disks, which is an indicator of the rate of photosynthesis, ranging from 0% to 120%. The graph contains three colored lines: - **Blue Light:** Represented by a blue line with diamond markers. - **Red Light:** Represented by a red line with square markers. - **Green Light:** Represented by a green line with triangle markers. #### Observations: 1. The line representing **blue light** shows a steep increase, reaching 100% floating disks at around the 45-minute mark and maintaining this until the 55-minute mark. 2. The line representing **red light** shows a moderate increase, reaching 60% floating disks at approximately 50 minutes. 3. The line representing **green light** shows a gradual increase, reaching only 20% floating disks at around 45 minutes and maintaining this until 55 minutes. #### Questions Discussion: 1. **Which color of light stimulates photosynthesis most effectively?** - Based on the graph, **blue light** stimulates photosynthesis most effectively, as it reaches 100% floating disks the fastest. 2. **If there were an excessive amount of algae growing in an aquarium, what color of light bulb should be used to reduce the growth?** - To reduce algae growth in an aquarium, a **green light bulb** should be used. The graph shows that green light results in the lowest rate of photosynthesis, thereby limiting the growth of photosynthetic organisms like algae.
Transcribed Image Text:### The Effect of Light Color on Photosynthesis #### Graph Explanation: The graph presented illustrates the impact of light color on the rate of photosynthesis over time, specifically for blue, red, and green light. - **X-axis (horizontal):** Represents Time in minutes (min), ranging from 0 to 55 minutes. - **Y-axis (vertical):** Represents the percentage of floating disks, which is an indicator of the rate of photosynthesis, ranging from 0% to 120%. The graph contains three colored lines: - **Blue Light:** Represented by a blue line with diamond markers. - **Red Light:** Represented by a red line with square markers. - **Green Light:** Represented by a green line with triangle markers. #### Observations: 1. The line representing **blue light** shows a steep increase, reaching 100% floating disks at around the 45-minute mark and maintaining this until the 55-minute mark. 2. The line representing **red light** shows a moderate increase, reaching 60% floating disks at approximately 50 minutes. 3. The line representing **green light** shows a gradual increase, reaching only 20% floating disks at around 45 minutes and maintaining this until 55 minutes. #### Questions Discussion: 1. **Which color of light stimulates photosynthesis most effectively?** - Based on the graph, **blue light** stimulates photosynthesis most effectively, as it reaches 100% floating disks the fastest. 2. **If there were an excessive amount of algae growing in an aquarium, what color of light bulb should be used to reduce the growth?** - To reduce algae growth in an aquarium, a **green light bulb** should be used. The graph shows that green light results in the lowest rate of photosynthesis, thereby limiting the growth of photosynthetic organisms like algae.
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