The $\mathrm{C}_4$ plants are phoptosynthetically more efficient than $\mathrm{C}_3$ plants because

The $\mathrm{C}_4$ plants are phoptosynthetically more efficient than $\mathrm{C}_3$ plants because
  1. They have more chloroplasts
  2. The $\mathrm{CO}_2$ compensation point is more
  3. $\mathrm{CO}_2$ generated during photorespiration is trapped and recycled through PEP carboxylase
  4. The $\mathrm{CO}_2$ efflux is not prevented

Solution

$\mathrm{C}_4$ plants do not show photorespiration and have more chloroplast in bundle sheath.

Asked in: NEET 2008 (Mains)

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