For plants, the total amount of carbon gained by photosynthesis must be greater than that respired over their lifetime because...
What will be an ideal response?
Plants need carbon to grow and therefore must take in more than they lose
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Typical electron donors used by dissimilative sulfate-reducers are
A) hydrogen, water, and hyrdrogen sulfide. B) hydrogen, lactate, and pyruvate. C) carbon dioxide, hydrogen, and water. D) sulfate, sulfur, and thiosulfate.
During the Calvin-Benson cycle (carbon-fixing reactions), in the red Columbine plant, high-energy electrons are transferred into a newly made 3-carbon compound. Eventually these electrons will end up as part of glucose molecules. What was the original source of these electrons in photosynthesis?
a. glucose b. ATP c. oxygen d. water e. carbon dioxide
In a leaf, where are the most chloroplasts
found?
a. the phloem b. the palisade mesophyll c. the spongy mesophyll d. the upper epidermis e. stomata
Which of the following kingdoms are prokaryotes?
A. fungi B. animalia C. protista D. archaea E. plantae