Question

multiple choice question
the magnetosomes illustrated here are aligned in the cytoplasm by ______.

• cytoskeletal proteins
• internal membranes
• strands of peptidoglycan
• macromolecular crowding

Explanation:

Magnetosomes in bacteria are aligned in the cytoplasm by cytoskeletal proteins. Internal membranes don't align magnetosomes this way, peptidoglycan is part of the cell wall (not for magnetosome alignment), and macromolecular crowding isn't the mechanism for their alignment. So the correct option is cytoskeletal proteins.

Answer:

A. cytoskeletal proteins