Which one is essential for the respiration as well as photosynthesis?
A
RuBisCO
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B
Plastocyanin
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C
Ubiquinone
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D
Cytochrome
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Solution
The correct option is D Cytochrome Cytochromes are iron containing pigments. It act as electron transporter or electron acceptor in both respiration and photosynthesis. Plastocyanin and ubiquinone are also electron carriers but are found only during photosynthesis and do not participate in respiration. Rubisco is an enzyme involved in the first major step of carbon fixation during the dark reaction of photosynthesis.