Three "turns" of the Calvin cycle generate a "surplus" molecule of glyceraldehyde 3-phosphate (G3P). Which of the following is a consequence of this?
A) Formation of a molecule of glucose would require nine "turns."
B) G3P more readily forms sucrose and other disaccharides than it does monosaccharides.
C) Some plants would not taste sweet to us.
D) The formation of sucrose and starch in plants involves assembling G3P molecules, with or without further rearrangements.
E) Plants accumulate and store G3P.

Question

Quizplus · Accepted Answer

The formation of sucrose and starch in plants involves assembling G3P molecules, with or without further rearrangements. The surplus G3P generated in the Calvin cycle can be used to assemble sucrose or starch. Therefore, plants that generate surplus G3P can produce and store these complex carbohydrates.

Three "Turns" of the Calvin Cycle Generate a "Surplus" Molecule