Biologists Believe That in the Earliest Version of Photosynthesis,the Energized

question 11

Multiple Choice

Biologists believe that in the earliest version of photosynthesis,the energized photosystem electron simply cycled back to the chlorophyll molecule.Which of the following limitations would NOT be imposed by such a system?

• 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) Cells could produce O₂ but not sugars.

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Definitions:

Sodium

A chemical element with the symbol "Na" and atomic number 11, widely known for its role in salt (sodium chloride) and various other compounds.

Elemental Metals

These are pure chemical substances consisting of a single type of atom that exhibits metallic properties such as conductivity, malleability, and luster.

Tungsten

A chemical element with the symbol W and atomic number 74, known for its high melting point and strength when alloyed.

Molybdenum

A silvery-white, hard metal used in steel alloys to increase strength, hardness, and resistance to corrosion.