Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
In $\mathrm{C}_3$ plants, the first stable product of photosynthesis during the dark reaction is:
BiologyPhotosynthesis in Higher PlantsNEETNEET 2004
Options:
  • A malic acid
  • B oxaloacetic acid
  • C 3-phosphoglyceric acid
  • D phosphoglyceraldehyde.
Solution:
1794 Upvotes Verified Answer
The correct answer is: 3-phosphoglyceric acid
The first stable product of $\mathrm{CO}_2$ fixation in $\mathrm{C}_3$ plants is a three-carbon organic acid. The enzyme ribulose-1,5-bisphosphate carboxylase-oxygenase (RuBisCO) combines $\mathrm{CO}_2$ with the ribulose 1,5-bisphosphate to form two molecules of 3-phosphoglyceric acid.
Related Theory
$A D P, N A D P$, and glucose are the end products of the $C_3$ cycle. ADP and NADP are produced in the first stage of $\mathrm{C}_3$ cycle. In the second stage, glucose is produced.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.