1) Dichlorophenyldimethylurea inhibits photosynthesis by blocking electron transfer between the plastoquinone in photosystem II. a) Would you expect this to interfere with cyclic photophosphorylation? b) This herbicide normally stops O2 evolution, but if we add ferricyanide to the chloroplasts, O2 evolution continues. Why might this be the case?
1) Dichlorophenyldimethylurea inhibits photosynthesis by blocking electron transfer between the plastoquinone in photosystem II. a) Would you expect this to interfere with cyclic photophosphorylation? b) This herbicide normally stops O2 evolution, but if we add ferricyanide to the chloroplasts, O2 evolution continues. Why might this be the case?
Chapter20: The Protists
Section: Chapter Questions
Problem 4CT: Melvin Calvin and Andrew Benson determined the steps in the light-independent reactions of...
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1) Dichlorophenyldimethylurea inhibits photosynthesis by blocking electron transfer between the plastoquinone in photosystem II.
a) Would you expect this to interfere with cyclic photophosphorylation?
b) This herbicide normally stops O2 evolution, but if we add ferricyanide to the chloroplasts, O2 evolution continues. Why might this be the case?
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