Question

which of the following statements about ribulose 1,5-bisphosphate carboxylase (Rubisco) is incorrect?
It is present at low concentrations in the chloroplast.
it is activated by the addition of Co, to the e-amino group of a specific lysine to form a carbamate that then
binds a divalent metal cation.
It catalyzes, as one part of its reaction sequence, an extremely exergonic reaction, the cleavage of a six-
carbon diol derivative of arabinitol to form 2,3-carbon compounds.
dit catalyzes a reaction between ribulose 1,5-bisphosphate and O, that decreases the efficiency of photosynthesis​

Answer 1

Answer:

Explanation:

Ribulose-1,5-bisphosphate carboxylase-oxygenase, commonly known by the abbreviations RuBisCo, rubisco,[1] RuBPCase, or RuBPco, is an enzyme involved in the first major step of carbon fixation, a process by which atmospheric carbon dioxide is converted by plants and other photosynthetic organisms to energy-rich molecules such as glucose. In chemical terms, it catalyzes the carboxylation of ribulose-1,5-bisphosphate (also known as RuBP). It is probably the most abundant enzyme on Earth

Answer 2

Answer:

RuBisCo is present in high concentrations in the chloroplast

Explanation:

• RuBisCo is the most abundant enzyme in biological organisms
• It is a catalyst in the Calvin-Benson Cycle in photosynthesis
• It catalyses the reaction which converts carbon found in the atmosphere in the form of carbon dioxide to sugars
• Specifically, it catalyses the carboxylation reaction which is the fixation of carbon dioxide
• It is also involved in photorespiration
• RuBisCo has an active site that can bind to both carbon dioxide and oxygen
• When oxygen binds to RuBisCo, fixation of carbon dioxide decreases

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