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To which of the two lighting conditions would you expose seedlings if you wanted to maximize the rate of photosynthesis in the plants as well as minimizing your costs for electricity to light the plants in the greenhouse?   A. Low light only.   B. Moderate light only.   C. Low light for the first 12 hours and then moderate light afterwards.   D. Moderate light for the first 12 hours and then low light afterwards.

To which of the two lighting conditions would you expose seedlings if you wanted to maximize the rate of photosynthesis in the plants as well as minimizing your costs for electricity to light the plants in the greenhouse?   A. Low light only.   B. Moderate light only.   C. Low light for the first 12 hours and then moderate light afterwards.   D. Moderate light for the first 12 hours and then low light afterwards.

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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To which of the two lighting conditions would you expose seedlings if you wanted to maximize the rate of photosynthesis in the plants as well as minimizing your costs for electricity to light the plants in the greenhouse?
 
A. Low light only.
 
B. Moderate light only.
 
C. Low light for the first 12 hours and then moderate light afterwards.
 
D. Moderate light for the first 12 hours and then low light afterwards.
### Graph 1: Amount of Chlorophyll with Different Amounts of Light This graph illustrates the relationship between the amount of chlorophyll produced and the duration of exposure to two different light intensities: low light and moderate light, measured over a period of 48 hours. - **X-axis**: Represents the time in hours, ranging from 0 to 48 hours. - **Y-axis**: Represents the amount of chlorophyll measured in micrograms per gram (µg/g), ranging from 0 to 600 µg/g. ### Key Observations: 1. **Low Light (Solid Line)**: - The amount of chlorophyll increases gradually over the hours. - Between 0 to 5 hours, there's a slight increase. - From 12 hours onwards, the increase in chlorophyll becomes more pronounced, reaching approximately 200 µg/g at 48 hours. 2. **Moderate Light (Dashed Line)**: - Initially follows a similar trend to the low light condition with slight increases. - From 12 hours onward, there is a steeper increase compared to low light. - By 48 hours, chlorophyll levels reach nearly 600 µg/g, indicating a significant increase. ### Conclusion: The graph demonstrates that moderate light results in a higher production of chlorophyll over time compared to low light. The significant divergence occurs after 12 hours, highlighting the effects of light intensity on chlorophyll synthesis.
Transcribed Image Text:### Graph 1: Amount of Chlorophyll with Different Amounts of Light This graph illustrates the relationship between the amount of chlorophyll produced and the duration of exposure to two different light intensities: low light and moderate light, measured over a period of 48 hours. - **X-axis**: Represents the time in hours, ranging from 0 to 48 hours. - **Y-axis**: Represents the amount of chlorophyll measured in micrograms per gram (µg/g), ranging from 0 to 600 µg/g. ### Key Observations: 1. **Low Light (Solid Line)**: - The amount of chlorophyll increases gradually over the hours. - Between 0 to 5 hours, there's a slight increase. - From 12 hours onwards, the increase in chlorophyll becomes more pronounced, reaching approximately 200 µg/g at 48 hours. 2. **Moderate Light (Dashed Line)**: - Initially follows a similar trend to the low light condition with slight increases. - From 12 hours onward, there is a steeper increase compared to low light. - By 48 hours, chlorophyll levels reach nearly 600 µg/g, indicating a significant increase. ### Conclusion: The graph demonstrates that moderate light results in a higher production of chlorophyll over time compared to low light. The significant divergence occurs after 12 hours, highlighting the effects of light intensity on chlorophyll synthesis.
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