Question:

$3$-PGA is first stable product ill

Updated On: Jul 2, 2022

carbon-reduction cycle
OAA
malic acid
PEP

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The Correct Option is A

Solution and Explanation

$3$-phosphoglyceric acid $(3PGA)$ is the first stable product of Calvin-Bensen cycle or $C_{3}$ cycle. Oxaloacetic acid (OAA) is first stable product of Hatch-Slack cycle or $C_{4}$-cycle. Malic acid is produced in bundle sheath cells from $OAA$ in $C_{4}$ cycle. Phosphoenol pyruvic acid (PEP) is the first $C O_{2}$ acceptor in $C_{4}$-cycle.

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Concepts Used:

Photosynthesis in Higher Plants

Processes Of Photosynthesis in Higher Plants:

Photosynthesis in higher plants involves the following processes:

Light Reaction
Dark Reaction

Light Reaction:

This phenomenon occurs in the presence of light.
The pigment absorbs light and produces energy in the form of ATP.
The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.

Dark Reaction:

This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:

Calvin Cycle (C3 Cycle)
C4 Cycle (Hatch and Slack Pathway)