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The enzyme complex RuBisCO catalyzes: 1-joining of a 5-carbon molecule to CO2 2-about 10,000 reactions per...

The enzyme complex RuBisCO catalyzes:

1-joining of a 5-carbon molecule to CO2

2-about 10,000 reactions per second

3-hydrolysis of ATP

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Answer #1

The correct answer is-

1- joining of a 5 carbon molecule to CO2

Enzymes can process a thousand molecules per second, but the plant enzyme RuBisCO fixes only about three carbon dioxide molecules per second. Plant cells compensate for this slow rate by building lots of the enzyme.

The enzyme RuBisCO participates in the 1st step in calvin cycle which is the dark reaction and catalyzes the carboxylation of ribulose-1,5-bisphosphate (RuBP). It is the most abundant enzyme on Earth.

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