Homework Help is Here – Start Your Trial Now!
Science
Biology
Nó Chloroplasts 0.45 Chloroplasts in the 0.4 dark Chloroplasts in the light 0.35 0.3 10 15 Time (minutes) w would you interpret the above data? Results indicate that the herbicide: a. interferes with the Calvin cycle and prevents electron transport b. interferes with the light reactions and prevents electron transport c had no effect on photosynthesis d. increased the rate of photosynthesis e. may have inhibited photosynthesis but the controls indicate the chloroplasts were not reducing DCPIP therefore the experiment wa herbicide 20

Nó Chloroplasts 0.45 Chloroplasts in the 0.4 dark Chloroplasts in the light 0.35 0.3 10 15 Time (minutes) w would you interpret the above data? Results indicate that the herbicide: a. interferes with the Calvin cycle and prevents electron transport b. interferes with the light reactions and prevents electron transport c had no effect on photosynthesis d. increased the rate of photosynthesis e. may have inhibited photosynthesis but the controls indicate the chloroplasts were not reducing DCPIP therefore the experiment wa herbicide 20

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,...
See similar textbooks
icon
Related questions
Question
Activity of the light reactions can be assayed using an artificial, reducible compound (e- acceptor) added to take the place of the natural electron acceptor. The artificial e- acceptor used is called DCPIP, a blue dye that turns colorless when it accepts electrons. The reaction is: H20 + DCPIPoxidized (blue) ->02 + DCPIPreduced (colorless) To detect changes in the color of the DCPIP, a spectrophotometer is used to measure light intensity as a function of wavelength. When light is passed through a solution, the solute may either absorb or scatter light resulting in different color and opacity of the solution. DCPIP absorbs light in its oxidized state but not in its reduced state. Data below shows the results of an experiment using this assay to test the effects of an herbicide on photosynthesis. 0.6 0.55 0.5 No Chloroplasts 0.45 Chloroplasts in the 0.4 dark Chloroplasts in the light 0.35 0.3 10 15 20 Time (minutes) How would you interpret the above data? Results indicate that the herbicide: O a. interferes with the Calvin cycle and prevents electron transport O b.interferes with the light reactions and prevents electron transport Oc had no effect on photosynthesis O d. increased the rate of photosynthesis O e. may have inhibited photosynthesis but the controls indicate the chloroplasts were not reducing DCPIP therefore the experiment was not able to test the effect of the herbicide Absorbance
Transcribed Image Text:Activity of the light reactions can be assayed using an artificial, reducible compound (e- acceptor) added to take the place of the natural electron acceptor. The artificial e- acceptor used is called DCPIP, a blue dye that turns colorless when it accepts electrons. The reaction is: H20 + DCPIPoxidized (blue) ->02 + DCPIPreduced (colorless) To detect changes in the color of the DCPIP, a spectrophotometer is used to measure light intensity as a function of wavelength. When light is passed through a solution, the solute may either absorb or scatter light resulting in different color and opacity of the solution. DCPIP absorbs light in its oxidized state but not in its reduced state. Data below shows the results of an experiment using this assay to test the effects of an herbicide on photosynthesis. 0.6 0.55 0.5 No Chloroplasts 0.45 Chloroplasts in the 0.4 dark Chloroplasts in the light 0.35 0.3 10 15 20 Time (minutes) How would you interpret the above data? Results indicate that the herbicide: O a. interferes with the Calvin cycle and prevents electron transport O b.interferes with the light reactions and prevents electron transport Oc had no effect on photosynthesis O d. increased the rate of photosynthesis O e. may have inhibited photosynthesis but the controls indicate the chloroplasts were not reducing DCPIP therefore the experiment was not able to test the effect of the herbicide Absorbance
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Photosynthesis & Respiration
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS