A process that makes important difference between $\mathrm{C}_3$ and $\mathrm{C}_4$ plants is

A process that makes important difference between $\mathrm{C}_3$ and $\mathrm{C}_4$ plants is
  1. transpiration
  2. glycolysis
  3. photosynthesis
  4. photorespiration

Solution

Photorespiration is a light dependent process which occurs in $\mathrm{C}_3$ plants. It is opposite to photosynthesis because during this process, uptake of $\mathrm{O}_2$ and release of $\mathrm{CO}_2$ take place. Due to presence of Kranz anatomy, $C_4$ plants do not show photorespiration.

Asked in: NEET 2012 (Screening)

Practice more Photosynthesis in Higher Plants questions on Aicharya