TLS Online TPP Program

#Question id: 10141


Rubisco is an essential phenomenon and its catalytic activity is regulated, which of following is wrong statement?

#Unit 6. System Physiology – Plant
  1. Rubisco is regulated by a natural sugar phosphate, nocturnal inhibitor_2-carboxyarabinitol-1-phosphate, that closely resembles the six-carbon transition intermediate of the carboxylation reaction
  2. The activity of rubisco is also regulated by light, but the enzyme itself does not respond to thioredoxin
  3. In some plants carbamylayted rubisco is highly regulated phenomenon by which rubisco is catalytically inactive 
  4. Sugar phosphates- xylulose 1,5-bisphosphate inhibit catalysis by binding tightly to the uncarbamylated rubisco and the substrate -ribulose 1,5-bisphosphate inhibit the carbamylated rubisco