Question

Which of the following statements is true?

Answer 1

Answer:

B. The periplasmic space contains the peptidoglycan layer of Gram-negative bacteria.

Explanation:

Periplasma is the compartment that surrounds the cytoplasm in Gram negative bacteria. It is comprised between the plasma membrane (which is inward) and the outer membrane of the gram negative, on the outside.

This periplasmic space contains the peptidoglycan layer and proteins that are responsible for receiving extracellular signals, among other functions.

The high concentration of peptidoglycan causes this space to be in a gel-like state.