Examine the Illustration Below; Which Statement Best Summarizes the Contribution

question 32

Multiple Choice

Examine the illustration below; which statement best summarizes the contribution of Photosystem I (PSI) during photosynthesis?

• A)PSI provides the initial energy boost to the electrons on their way to Photosystem II (PSI
• I).
• B)PSI generates the excited electrons that initially accumulate within the thylakoid space and eventually drive ATP synthesis.
• C)PSI generates the high-energy electrons that are transported by NADPH to the Calvin cycle and will eventually reduce the carbon in CO₂.
• D)By cycling between reduced and oxidized states, PSI regulates the transmembrane passage of protons between the stroma and the thylakoid space.

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Definitions:

Terminal Moraine

A terminal moraine is a type of moraine that forms at the end of a glacier, marking the furthest advance of the glacier, and consists of a ridge of debris that was transported and deposited by the ice.

Drumlins

Elongated hills formed by glacial ice acting on underlying debris, oriented in the direction of ice movement.

Loess

A fine, wind-deposited sediment that forms fertile soil, typically found in prairie regions.

Glaciers

Large masses of ice on land that move slowly over time, formed by the accumulation and compaction of snow, significantly influencing landscapes through erosion and deposition.