Explain Atom Rearrangement in Synthesis Practice Test

Protein production is limited because carbon atoms can only come from soil, and the sealed container prevents carbon from entering.

Protein production is limited because the plant must create nitrogen atoms from sunlight, and the container blocks sunlight.

Protein production is limited because nitrogen atoms needed for amino acids must be taken from soil nutrients; without a nitrogen source, the plant cannot add N to carbon skeletons made from glucose.

Protein production is limited because glucose atoms cannot be rearranged into other molecules; glucose can only be used for energy.