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BIL150 Mallery 2022 Final Exam Study Exams 4 Questions With 100% Complete Solution Newest Version
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Which of the following sequences is the closest representation of the flow ofelectrons during green plant photosynthesis? NADPH --> an ETC --> O2 NADPH --> O2 --> CO2 --> an ETC H2O --> photosysyem II --> an ETC --> photosystem I --> NADPH NADPH --> chlor...

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  • November 22, 2024
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  • 2024/2025
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  • bil150 mallery 2022 final exam study exams 4 quest
  • bil150 mallery 2022 final exam study stuvia
  • which of the following sequences is the closest re

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BIL150 Mallery 2022 Final Exam Study
Exams 4 Questions With 100% Complete
Solution Newest Version

Which of the following sequences is the closest representation of the flow ofelectrons
during green plant photosynthesis?




NADPH --> an ETC --> O2



NADPH --> O2 --> CO2 --> an ETC



H2O --> photosysyem II --> an ETC --> photosystem I --> NADPH



NADPH --> chlorohyll-P680 --> Calvin Cycle



Photosysten I --> photosystem II --> H2O - CORRECT ANSWER-H2O --> photosysyem
II --> an ETC --> photosystem I --> NADPH



a particular cell has twice the amount of DNA as that in the diploid amount for this
species. This particular cell is most likely?



in G2 of interphase

in G1 of interphase

just before entering the S phase

at the end of cytokensis

,in a stage of meiosis when the cells are not able to divide at all - CORRECT ANSWER-
in G2 interphase



Compared to C3 plants, C4 plants?




reduce the efficiency of photosynthesis by 50%



do not use Rubisco for CO2 reduction



can continue to reduce CO2 even at very low CO2 concentrations and high O2 levels



make a 4-carbon acid, oxaloacetate, which is then delivered to the Krebs cycle in
mitochondria



have higher rates of photorespiration - CORRECT ANSWER-can continue to reduce
CO2 even at very low CO2 concentrations and high O2 levels



A gradute student doing photosynthetic research measures the amounts of ATP and
NADPH in Calvin cycle plants in a one hour period and finds that 30,000 molecules of
ATP were consumed, but only 20,000 molecules of NADPH were consumed. Confused
he asks his mentor where did the additional ATP molecules, compared to the NADPH
amount come from. The mentor says they likely came from?



photosystem II directly

hydrolysis of water by oxygenase

non-cyclic electron flow in Photosystem II

substrate level phosphorylation

, cyclic electron flow in photosystem I - CORRECT ANSWER-cyclic electron flow in
photosystem I



In thylakoid membranes of green plants, what is the main role of the antenna chlorophyll
pigment molecules?




to split water and release oxygen to the reactions center chlorophyll-P700



to synthesize ATP from ADP and Pi



to harvest photons and transfer light energy to the reaction center chlorophyll-P680



to transfer electrons to ferredoxin and then NADPH



to concentrate photons within the stroma (chloroplasm) - CORRECT ANSWER-to
harvest photons and transfer light energy to the reaction center chlorophyll-P680



the decrease in the amount of MPF activity at the end of mitosis is due to?




he degradation of cyclin



the destruction of the protein kinase CdK (cyclin dependent kinase)



synthesis of DNA

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