The substance dichlorophenyldimethylurea (DCMU) is an herbicide that inhibits photosynthesis by blocking electron transfer between plastoquinones in

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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.

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Biochemistry Concepts And Connections

ISBN: 9780134641621

2nd Edition

Authors: Dean Appling, Spencer Anthony-Cahill, Christopher Mathews

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Question Posted: Nov 06, 2023 03:19 AM

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The substance dichlorophenyldimethylurea (DCMU) is an herbicide that inhibits photosynthesis by blocking electron transfer between plastoquinones in

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Biochemistry Concepts And Connections

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