What molecule is primarily produced from G3P in the Calvin Cycle for storage?

The molecule primarily produced from glyceraldehyde-3-phosphate (G3P) in the Calvin Cycle for storage is starch. During photosynthesis, the Calvin Cycle converts carbon dioxide into organic compounds, using ATP and NADPH generated in the light reactions. G3P is a three-carbon sugar that can be used for various biosynthetic processes.

Once G3P is synthesized, it can be converted into glucose and other carbohydrates. One of the primary storage forms of carbohydrates in plants is starch, which is a polysaccharide made up of glucose monomers. Starch serves as an energy reserve that the plant can utilize when needed, particularly during periods when photosynthesis is not occurring, such as at night or during the winter.

The other molecules mentioned, such as citrate, pyruvate, and malate, are involved in different metabolic pathways. Citrate is primarily involved in the citric acid cycle, pyruvate is a key intermediate in glycolysis, and malate plays a role in the formation of oxaloacetate in the citric acid cycle as well. However, none of these are the main storage form of energy derived from G3P in the context of the Calvin Cycle. Thus, starch is the correct answer for its