The substance dichlorophenyldimethylurea (DCMU) is an herbicide thatinhibits photosynthesis by blocking electron transfer between plastoquinones in photosystem II.(a) Would you expect DCMU to interfere with cyclic photophosphorylation?(b) Normally, DCMU blocks O2 evolution, but addition of ferricyanide to chloroplasts allows O2 evolution in the presence of DCMU. Explain.
The substance dichlorophenyldimethylurea (DCMU) is an herbicide thatinhibits photosynthesis by blocking electron transfer between plastoquinones in photosystem II.(a) Would you expect DCMU to interfere with cyclic photophosphorylation?(b) Normally, DCMU blocks O2 evolution, but addition of ferricyanide to chloroplasts allows O2 evolution in the presence of DCMU. Explain.
Chapter20: The Protists
Section: Chapter Questions
Problem 4CT: Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of...
Related questions
Question
The substance dichlorophenyldimethylurea (DCMU) is an herbicide that
inhibits photosynthesis by blocking electron transfer between plastoquinones in photosystem II.(a) Would you expect DCMU to interfere with cyclic photophosphorylation?(b) Normally, DCMU blocks O2 evolution, but addition of ferricyanide to chloroplasts allows O2 evolution in the presence of DCMU. Explain.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Biology (MindTap Course List)
Biology
ISBN:
9781337392938
Author:
Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:
Cengage Learning
Concepts of Biology
Biology
ISBN:
9781938168116
Author:
Samantha Fowler, Rebecca Roush, James Wise
Publisher:
OpenStax College
Biology (MindTap Course List)
Biology
ISBN:
9781337392938
Author:
Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:
Cengage Learning
Concepts of Biology
Biology
ISBN:
9781938168116
Author:
Samantha Fowler, Rebecca Roush, James Wise
Publisher:
OpenStax College
Biology Today and Tomorrow without Physiology (Mi…
Biology
ISBN:
9781305117396
Author:
Cecie Starr, Christine Evers, Lisa Starr
Publisher:
Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:
9781305389892
Author:
Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:
Cengage Learning
Biochemistry
Biochemistry
ISBN:
9781305577206
Author:
Reginald H. Garrett, Charles M. Grisham
Publisher:
Cengage Learning