Question

question 28
in bacterial cells, the electron transport system is located in the
a mitochondria
b ribosomes
c cytoplasm
d chloroplasts
e cell membrane

Explanation:

Bacterial cells are prokaryotic. Prokaryotes lack mitochondria (A is wrong as mitochondria are in eukaryotes), ribosomes (B) are for protein synthesis, cytoplasm (C) is the general internal fluid - like part (not the specific site for electron transport in bacteria), and chloroplasts (D) are for photosynthesis in plant cells. Bacterial electron transport system is in the cell membrane (E) as they use the cell membrane for processes similar to the inner mitochondrial membrane in eukaryotes for electron transport.

Answer:

E. cell membrane