QUESTION 22 Choose the best explanation of what would happen duirng the Calvin cycle of a plant exposed to light during the day and then suddenly put in the dark. The cycle cannot run, as it requires light energy directly to excite the reaction center electrons. Can still run as long as there is ATP, CO2, and NADPH H+ from the light reactions still available. The Calvin cycle will start working backwards to produce water, Carbon dioxide and electrons. The Calvin cycle will continue by using a different source of carbon than carbon dioxide.

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
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QUESTION 22
Choose the best explanation of what would happen duirng the Calvin cycle of a plant exposed to light during the day and then
suddenly put in the dark.
The cycle cannot run, as it requires light energy directly to excite the reaction center electrons.
Can still run as long as there is ATP, CO2, and NADPH H+ from the light reactions still available.
The Calvin cycle will start working backwards to produce water, Carbon dioxide and electrons.
The Calvin cycle will continue by using a different source of carbon than carbon dioxide.
Transcribed Image Text:QUESTION 22 Choose the best explanation of what would happen duirng the Calvin cycle of a plant exposed to light during the day and then suddenly put in the dark. The cycle cannot run, as it requires light energy directly to excite the reaction center electrons. Can still run as long as there is ATP, CO2, and NADPH H+ from the light reactions still available. The Calvin cycle will start working backwards to produce water, Carbon dioxide and electrons. The Calvin cycle will continue by using a different source of carbon than carbon dioxide.
QUESTION 21
In photosynthesis, ATP is made by
O trick question, no ATP is made
O proton motive force in the lumen.
redox reactions involving NADP+
the light independent Calvin cycle.
Transcribed Image Text:QUESTION 21 In photosynthesis, ATP is made by O trick question, no ATP is made O proton motive force in the lumen. redox reactions involving NADP+ the light independent Calvin cycle.
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