Identify the incorrect statement with respect to Calvin cycle.

The carboxylation of RuBP is catalysed to form phosphoglycerate.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

The first stable intermediate compound formed is phosphoglycerate.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

18 molecules of ATP are synthesized during carbon fixation.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

NADPH+

H^{+}

produced in light reaction is used to reduce diphosphoglycerate.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D 18 molecules of ATP are synthesized during carbon fixation.
In Calvin cycle, ATP and NADPH which are the products of the light-dependent process, are used for carbon fixation in C $_{3}$ plants. The products of the cycle are carbon hydrate and ADP and NADP+. So, there's no ATP production during the Calvin cycle, ATP is consumed by the cycle.
So, the correct answer is '18 molecules of ATP are synthesized during carbon fixation.'

Suggest Corrections

Similar questions

Q. Calvin cycle has three stages. Identify the correct sequence.
1. Reduction during which carbohydrate is formed at the expense of photochemically made ATP and NADPH
2. Regeneration during which carbon dioxide acceptor 1, 5-RuBP is formed
3. Carboxylation during which

C O_{2}

combines with 1, 5-RuBP.

Q. In a series of reaction during carbon fixation, 'A', a six carbon compound reacts with a three carbon compound to gives rise 'B', a four-carbon compound and 'C', five carbon compound. 'B' reacts with a three carbon compound to form D, a seven carbon compound. 'D' reacts with triose to form two molecules of 'E', five-carbon compounds. Identify the reactant with 'B' and enzyme involved in the formation of 'D' respectively.

Q. Three carbons of phosphoglyceric acid formed during carbon fixation are derived from

Read the given statement and select the correct option.
Statement 1: Carboxylation is the most crucial step of Calvin where

C O_{2}

is utilised for the carboxylation of RuBP.
Statement 2: Carboxylation is catalysed by the enzyme RuBisCO which results in the formation of two molecules of 3PGA.

In the process of carbon fixation, RuBP attaches a CO2 to produce a 6 carbon molecule, which is then split intwo. After phosphorylation and reduction, what more needs to happen in the Calvin cycle?

Join BYJU'S Learning Program