Question

where does the electron transport chain occur?
golgi apparatus
mitochondrial membrane
endoplasmic reticulum

Explanation:

The electron - transport chain is a series of protein complexes that transfer electrons from electron donors to electron acceptors. In eukaryotes, it occurs in the mitochondrial membrane where it plays a key role in oxidative phosphorylation to generate ATP. The Golgi apparatus is involved in modifying, sorting, and packaging proteins and lipids. The endoplasmic reticulum is involved in protein and lipid synthesis.

Answer:

mitochondrial membrane