Plants need other molecules besides glucose. Where do these molecules, such as cellulose and fructose, come from?

A) Glucose must always be produced first; glucose can then be used as the monomer to form everything else.
B) G3P is directly converted to many other organic molecules besides glucose.
C) Plants absorb those molecules from the environment through their roots.
D) Any molecule beyond glucose must be converted from plant tissues already present.
E) Alternative forms of photosynthesis beyond those described must be producing those molecules.

Question

Zybrea Knight · Accepted Answer

Final Answer : B, Explanation :  G3P, which is produced through photosynthesis, can be used as a precursor molecule for the synthesis of a variety of organic molecules such as cellulose, fructose, and other carbohydrates, lipids, and amino acids. Therefore, plants do not need to produce glucose first and then convert it to other molecules, but they can directly produce a variety of molecules from G3P.

Definitions

Learning Objectives

Learning Objectives

Related questions