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Approximately how much chlorophyll was present in the low-light plants after 24 hours? A. about 200 micrograms/g B. about 225 micrograms/g C. about 300 micrograms/g D. about 400 micrograms/g

Approximately how much chlorophyll was present in the low-light plants after 24 hours? A. about 200 micrograms/g B. about 225 micrograms/g C. about 300 micrograms/g D. about 400 micrograms/g

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
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Approximately how much chlorophyll was present in the low-light plants after 24 hours?
 
A. about 200 micrograms/g
 
B. about 225 micrograms/g
 
C. about 300 micrograms/g
 
D. about 400 micrograms/g
Scientists use data tables to organize their experimental data. Often, the data are graphed because a graph can make the data easier to interpret. Graphs quickly show a relationship between two variables. Scientists exposed two groups of seedlings to various amounts of light. One group was exposed to low light conditions (LL) and the other group was exposed to moderate light (ML) conditions. Scientists measured the amount of chlorophyll in the seedlings at regular intervals during a 48-hour period. The amount of chlorophyll in the seedlings is expressed in micrograms of chlorophyll per gram of seedling (µg/g). The data from both groups are shown in the graph below. ### Graph 1: Amount of Chlorophyll with Different Amounts of Light The graph illustrates the change in chlorophyll content of seedlings over a 48-hour period under two light conditions: low light and moderate light. - **X-axis:** Represents time in hours, ranging from 0 to 48 hours. - **Y-axis:** Represents the amount of chlorophyll in micrograms per gram (µg/g), ranging from 0 to 600 µg/g. #### Details: - **Low Light (solid line):** - Shows a gradual increase in chlorophyll, starting from 0 µg/g and reaching about 100 µg/g at the 48-hour mark. - **Moderate Light (dashed line):** - Exhibits a more rapid increase, starting near 0 µg/g and reaching approximately 500 µg/g by the end of the 48-hour period. The graph clearly indicates that seedlings under moderate light accumulate more chlorophyll than those under low light over the same duration.
Transcribed Image Text:Scientists use data tables to organize their experimental data. Often, the data are graphed because a graph can make the data easier to interpret. Graphs quickly show a relationship between two variables. Scientists exposed two groups of seedlings to various amounts of light. One group was exposed to low light conditions (LL) and the other group was exposed to moderate light (ML) conditions. Scientists measured the amount of chlorophyll in the seedlings at regular intervals during a 48-hour period. The amount of chlorophyll in the seedlings is expressed in micrograms of chlorophyll per gram of seedling (µg/g). The data from both groups are shown in the graph below. ### Graph 1: Amount of Chlorophyll with Different Amounts of Light The graph illustrates the change in chlorophyll content of seedlings over a 48-hour period under two light conditions: low light and moderate light. - **X-axis:** Represents time in hours, ranging from 0 to 48 hours. - **Y-axis:** Represents the amount of chlorophyll in micrograms per gram (µg/g), ranging from 0 to 600 µg/g. #### Details: - **Low Light (solid line):** - Shows a gradual increase in chlorophyll, starting from 0 µg/g and reaching about 100 µg/g at the 48-hour mark. - **Moderate Light (dashed line):** - Exhibits a more rapid increase, starting near 0 µg/g and reaching approximately 500 µg/g by the end of the 48-hour period. The graph clearly indicates that seedlings under moderate light accumulate more chlorophyll than those under low light over the same duration.
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