Calvin Cycle | MCQs

Explanation

During phase 1 of this cycle, the CO2 molecule is incorporated into one of two 3-phosphoglycerate molecules (3-PGA).

This process requires the enzyme RuBisCO and both ATP and NADPH.

Once 3-PGA is formed, one of two molecules formed continues into the reduction phase (phase 2).

Explanation

In the dark reaction (also known as the Calvin cycle), the first stable compound formed is 3-phosphoglyceric acid (3-PGA), which is a three-carbon compound.

Hence, the correct answer is c) 3. 

Explanation

gluconeogenesis can be broadly considered the reversal of glycolysis

The Calvin cycle, Calvin–Benson–Bassham (CBB) cycle, reductive pentose phosphate cycle (RPP cycle), or C3 cycle is a series of biochemical redox reactions that take place in the stroma of chloroplast in photosynthetic organisms.

Explanation

 The Calvin cycle is also known as the C3 cycle or the light-independent reactions of photosynthesis.

It can also be referred to as the Calvin-Benson cycle or the reductive pentose phosphate cycle (RPP cycle). 

Explanation

The actual CO₂ acceptor in the Calvin cycle is ribulose-1,5-bisphosphate (RuBP), a phosphorylated form of ribulose.

RuBP combines with CO₂ in a reaction catalyzed by Rubisco, initiating the Calvin cycle.