• 072920 77839
  • info@smartachievers.in
Menu
Back
  • JEE ADVANCE
  • JEE MAIN
  • NEET
  • BITSAT
  • CBSE BOARD
  • UP BOARD
  • CUET
JEE ADVANCE
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
JEE MAIN
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
NEET
  • CLASS XI - XII
  • CRASH COURSE
BITSAT
  • CLASS XI - XII
CBSE BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
  • CLASS VI
  • CLASS VII
  • CLASS VIII
UP BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
CUET
  • CRASH COURSE
Courses


Solution


Q.

The process which makes a major difference between C3 and C4 plants is         [2016]
1 glycolysis  
2 Calvin cycle  
3 photorespiration  
4 respiration  

Ans.

(3)

Photorespiration is the light-dependent process of oxygenation of ribulose bisphosphate (RuBP) and release of carbon dioxide by the photosynthetic organs of a plant. It leads to the oxidation of a considerable amount of photosynthetic products to CO2 and H2O without the production of useful energy. Photorespiration occurs only in C3 plants because, at high temperature and high oxygen concentration, RuBP carboxylase changes to RuBP oxygenase. Photorespiration is wasteful.