Biologists Believe That in the Earliest Version of Photosynthesis the Energized

question 2

Multiple Choice

Biologists believe that in the earliest version of photosynthesis the energized photosystem electron simply cycled back to the chlorophyll molecule. What limitations would such a system impose?

• A)No molecular oxygen would be generated.
• B)No electrons would be available to reduce the carbon in CO₂.
• C)Cells could produce ATP but not sugars.
• D)all of the above

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Definitions:

Retroactive Interference

A memory phenomenon where newly learned information interferes with and impairs the recall of previously learned information.

Spacing Effect

A phenomenon in which learning is facilitated by spreading out study sessions over time, rather than learning the material all at once in a short period.

Older Adults

Refers to individuals in a population who are typically aged 65 years and older, often focusing on aspects related to aging, health status, and social and psychological well-being.

Recently Learned Information

Refers to new knowledge or data that an individual or system has acquired in the near past.