MUSCLE PHYSIOLOGY

Detailed explanation-1: -Carboxylation is the first step of Calvin cycle. It is the fixation of CO2 into a stable organic intermediate. In this, CO2 is utilised for the carboxylation of RuBP . This reaction is catalysed by the enzyme RuBisCO and it results in the formation of two molecules of 3-PGA (3-Phosphoglyceric acid).

Detailed explanation-2: -1. Carbon Fixation. Also known as the carboxylation phase, the first step in the Calvin cycle comprises only one irreversible reaction catalyzed by the enzyme ribulose-1, 5-bisphosphate carboxylase/oxygenase (RubisCO).

Detailed explanation-3: -The Calvin cycle reactions can be divided into three main stages: carbon fixation, reduction, and regeneration of the starting molecule.

Detailed explanation-4: -The Calvin cycle has four main steps: carbon fixation, reduction phase, carbohydrate formation, and regeneration phase.

Detailed explanation-5: -During the dark phase of photosynthesis, carbon dioxide combines with RUBP in the carboxylation reaction catalyzed by enzyme RuBisCo. The carboxylation of RUBP generates 3 PGA or 3 phosphoglyceric acid, which is the first stable product of dark phase.