Question

multiple choice question
bacterial internal membrane structures are often connected to the ______.

outer membrane
plasma membrane
cytoskeleton
peptidoglycan

Explanation:

Bacterial internal membrane structures (like invaginations for functions such as respiration or photosynthesis in some bacteria) are typically connected to the plasma membrane (also called the cell membrane). The outer membrane is a feature of Gram - negative bacteria but is not the main connection for internal membrane structures. The cytoskeleton in bacteria has a different role (maintaining cell shape, etc.) and is not the connection point for internal membranes. Peptidoglycan is part of the cell wall and is not connected to internal membrane structures in this way.

Answer:

B. plasma membrane