Which Statement About Metabolic Pathways is True

Question

Which statement about metabolic pathways is true?
A) Complex chemical transformations in the cell occur in a single reaction.
B) Each reaction requires ATP.
C) In eukaryotes,they occur in the cytoplasm.
D) They vary from organism to organism.
E) Each one is regulated by specific enzymes.

Accepted Answer

Metabolic pathways are complex sequences of chemical reactions that occur within a cell. They require multiple reactions, not just a single reaction, and they do not necessarily require ATP for each reaction. In eukaryotes, metabolic pathways occur in the cytoplasm, but also in organelles such as mitochondria and chloroplasts. While there may be some variation in metabolic pathways between organisms, there are many commonalities as well. Each metabolic pathway is regulated by specific enzymes.