Some Plants Have the Capacity to Carry Out Both Cyclic

question 42

Multiple Choice

Some plants have the capacity to carry out both cyclic and noncyclic photophosphorylation at the same time.They also have the ability to regulate the rates of these two processes.Which is a correct statement that explains an advantage of this type of regulation?

• A) The plant can take advantage of a broader range of visible light wavelengths by shifting back and forth between the two processes.
• B) The plant can shift flow of electrons through the two processes to shift the ratio of ATP to NADPH being produced to best meet metabolic demands.
• C) The plant can generate heat in place of ATP synthesis as needed, by shifting the flow of electrons between the two processes.
• D) The plant can conserve space in the chloroplast membrane by shifting gene expression to the process with fewer components.
• E) The plant can avoid the effects of chemical inhibitors of ATP synthase used as herbicides, by shifting between the two processes.

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Definitions:

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