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Standard XII
Biology
Question

Which protein is found in maximum amount ________________.
  1. Catalase
  2. Zinc carbonic anhydrase
  3. Transferase
  4. RUBISCO

A
Zinc carbonic anhydrase
B
Transferase
C
Catalase
D
RUBISCO
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Solution
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RUBISCO is the most abundant enzyme which is used to fix carbon during dark reaction of the photosynthesis. It is a primary acceptor of carbon dioxide during Calvin cycle. It is also known as Ribulose-1,5-bisphosphate carboxylase/oxygenase.
It fixes the carbon dioxide to 3-phosphoglycerate. It also accepts oxygen during photorespiration and forms phosphoglycolate and 3-phosphoglycerate.
Collagen is an amino acid protein. It is a structural protein. It is mostly found in tendon, ligament, and skin. 90% collagen is present in the animal cells.
So, the correct answer is option A.

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