In C3- plants, the first stable compound formed after CO2 fixation is

Question

In C3- plants, the first stable compound formed after CO2 fixation is (A) oxaloacetic acid (B) malic acid (C) phosphoglyceraldehyde (D) 3-phosphoglycerate

Tardigrade Admin · Accepted Answer

The plants fix atmospheric O 2 by a biosynthetic pathway called C 3 cycle. In this, CO 2 combines with RuBP [ribulose bisphosphate (5C) to form 2 molecules of 3 carbon compound 3 phosphoglyceric acid (3PGA) or 3 phosphoglycerate. This reaction is catalysed by RuBP carboxylase enzyme.

Q. In C3​− plants, the first stable compound formed after CO2​ fixation is

oxaloacetic acid

malic acid

phosphoglyceraldehyde

3-phosphoglycerate

The plants fix atmospheric O2​ by a biosynthetic pathway called C3​ cycle. In this, CO2​ combines with RuBP [ribulose bisphosphate (5C) to form 2 molecules of 3 carbon compound 3 phosphoglyceric acid (3PGA) or 3 phosphoglycerate. This reaction is catalysed by RuBP carboxylase enzyme.

Q. In $C_{3} -$ plants, the first stable compound formed after $C O_{2}$ fixation is