[Answer] Which of the following statements is true regarding the earliest photosynthetic organisms on Earth?

Answer: The organisms likely used molecules other than water (i.e. H2S) as electron donors.

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Which of the following statements is true regarding the earliest photosynthetic organisms on Earth? Which of the following statements is true regarding the earliest photosynthetic organisms on Earth? These organisms likely possessed two photosystems. The organisms likely produced oxygen as a waste product resulting in Earth's current atmosphere. These organisms likely used both inorganic molecules and water as electron donors . The organisms likely used molecules other … True. The absorbed light energy can be released as heat reemitted as light (fluorescence) or transferred to an adjacent chlorophyll molecule . Special chlorophyll molecules in the reaction center transfer both energy and electrons thus initiating the photosynthetic electron transport chain Which of the following statements is true regarding the earliest photosynthetic organisms on Earth? A) Given the abundance of H2O on early Earth these organisms used H2O as an electron donor. B ) These organisms likely possessed two photosystems . C ) These organisms likely used both inorganic molecules and water as electron donors . Which of the following statements is true regarding the earliest photosynthetic organisms on Earth? The organisms likely used inorganic molecules (i.e. H2S) as electron donors . The organisms likely produced oxygen as a waste product resulting in Earth's current atmosphere. Given the abundance of H2O on early Earth these organisms used H2O as an electron donor. These organisms likely used … Which of the f...

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