What is the 6-carbon compound in Calvin cycle?

A G3P molecule contains three fixed carbon atoms, so it takes two G3Ps to build a six-carbon glucose molecule. It would take six turns of the cycle, or 6 CO2​start text, C, O, end text, start subscript, 2, end subscript, 18 ATP, and 12 NADPH, to produce one molecule of glucose.

Which organic molecule is needed to form an unstable 6-carbon compound?

The most common pathway combines one molecule of CO2 with a 5-carbon sugar called ribulose biphosphate (RuBP). The enzyme which catalyzes this reaction (nicknamed RuBisCo) is the most abundant enzyme on earth! The resulting 6-carbon molecule is unstable, so it immediately splits into two 3-carbon molecules.

What 5 carbon compound is regenerated in the Calvin cycle?

RuBP
They are regenerated and later used again in the Light-dependent reactions). Each G3P molecule is composed of 3 carbons. For the Calvin cycle to continue, RuBP (ribulose 1,5-bisphosphate) must be regenerated. So, 5 out of 6 carbons from the 2 G3P molecules are used for this purpose.

What are the 5 carbon starting fragments in Calvin cycle?

In the stroma, in addition to CO2, two other chemicals are present to initiate the Calvin cycle: an enzyme abbreviated RuBisCO, and the molecule ribulose bisphosphate (RuBP). RuBP has five atoms of carbon and a phosphate group on each end.

What is Carboxylation in Calvin cycle?

The first part of the Calvin cycle is the carboxylation step. This is the point at which inorganic carbon enters the biosphere. The carboxylation reaction converts one 5 carbon molecule, RUBP, into two three carbon molecules, two 3-PGAs.

Which molecule that when combines to carbon dioxide will result to unstable six carbon molecule in photosynthesis?

Rubisco
The resulting six-carbon molecule is unstable and immediately splits into two molecules, a phosphorylated three-carbon molecule (3-phosphoglycerate, abbreviated as 3-PGA). The enzyme performing this reaction is called ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco).

Which of the following is a 5C compound?

α-ketoglutaric acid is the only 5C compound formed in krebs’ cycle.

What are the stages of the Calvin Benson cycle?

The Calvin–Benson cycle is composed of three phases: (1) carbon fixation, (2) reduction and (3) regeneration of the CO2 acceptor.

What is ATP ADP and NADPH?

ATP – Adenosine triphosphate. ADP – Adenosine diphosphate. NADP – Nicotinamide adenine dinucleotide phosphate. NADPH – The reduced form of NADP. In the Light Dependent Processes i.e Light Reactions, the light strikes chlorophyll a in such a way as to excite electrons to a higher energy state.