During the processes of respiration and photosynthesis in plant cells, what are the three primary elements that cycle between the mitochondria and chloroplasts?
A) carbon, iron, and sulfur
B) hydrogen, carbon, and oxygen
C) carbon, nitrogen, and phosphorus
D) hydrogen, oxygen, and potassium

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Answers

2014-02-13T22:35:25+08:00
The right answer is B: hydrogen, carbon and oxygen
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