The Energetics of Photosynthesis Often Overshadows the Importance of Carbon

question 22

Multiple Choice

The energetics of photosynthesis often overshadows the importance of carbon fixation; without the vital process of carbon fixation,what would happen?

• A) Carbon dioxide levels would decrease uncontrollably, making the Earth too warm to support life.
• B) Atmospheric oxygen levels would be too low to support life on Earth.
• C) Carbon atoms would still be readily available in biologically useful forms, causing organisms to grow and reproduce at the normal rate.
• D) Oxygen would bind carbon atoms spontaneously, producing more carbon dioxide.

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Immunizations

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Palpable, small, firm lymph nodes that resemble buckshot, often found during physical examinations and typically not indicative of serious illness.

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