Beginning with carbon fixation, arrange the steps of the calvin cycle in the correct order. use of enzyme and atp to form 5-carbon compound formation of a stable 3-carbon compound carbon dioxide reacts with a 5-carbon compound use of atp to form a high-energy 3-carbon compound formation of an unstable 6-carbon compound formation of glucose, which leaves the chloroplast

The correct order of steps in the Calvin cycle is as follows-

1) Carbon dioxide reacts with five carbon compound.

2) Formation of an unstable 6-carbon compound.

3) Formation of a stable 3-carbon compound.

4) Use of ATP to form a high energy 3-carbon compound.

5) Formation of glucose, which leaves the chloroplast.

6) Use of enzyme and ATP to form 5-carbon compound.

Calvin cycle ( also called dark reacton or light independent reaction) is the second phase of photosynthesis that utilizes chemical energy from light dependent phase that is ATP and NADPH and fixes carbon from CO₂ into 3-carbon sugar, which is used for the formation of glucose.

It is primarily divided into 4 steps-

Carbon fixation - CO₂ binds to RuBP ( 5 carbon molecule) in presence of RuBisCO enzyme and forms an unstable 6 carbon molecule that splits into stable 2 molecules of 3 carbon that is PGA ( phosphoglyceric acid).

Reduction- PGA is reduced to G3P ( glyceraldehyde 3- phosphate) ATP and NADPH.

Carbohydrate formation- G3P is turned into carbohydrate ( like glucose) and one G3P is utilized for RuBP regeneration.

Regeneration- Using ATP from light dependent phase, RuBP is regenerated with the help of G3P.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

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