1. Tardigrade
  2. Question
  3. Biology
  4. The C4 plants are photosynthetically more efficient than C3 plants because

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The C4 plants are photosynthetically more efficient than C3 plants because

AIPMTAIPMT 2008Photosynthesis in Higher Plants

Solution:

Explanation:
Due to high rate of photosynthesis and reduced rate of photorespiration, $C _4$ plants are more efficient than $C _3$ plants. $C _4$ plants have special leaf anatomy called 'Kranz anatomy'. It have less $CO _2$ compensation points and chlorophyll concentration is more than in $C _3$ plants.
Atmospheric $CO _2$ is fixed by $P E P$ carboxylase in mesophyll cells and is accepted by phosphoenolpyruvate (PEP) in the mesophyll cells to produce 4 carbon organic oxaloacetic acid.