The periplasmic space is
A)larger in gram-positive bacteria.
B)made up of lipopolysaccharides and phospholipids.
C)an important reaction site for substances entering and leaving the cell.
D)where peptidoglycan is located.
E)absent in gram-negative bacteria.

Question

Quizplus · Accepted Answer

The periplasmic space is a region in gram-negative bacteria between the outer and inner membranes that functions as an important reaction site for substances entering and leaving the cell. It contains a variety of enzymes and transport proteins that aid in nutrient acquisition and waste removal. It is smaller in gram-positive bacteria, and peptidoglycan is located in the cell wall of both gram-positive and gram-negative bacteria, not the periplasmic space. Lipopolysaccharides and phospholipids are primarily found in the outer membrane of gram-negative bacteria.

The Periplasmic Space Is