- Joined
- Jan 25, 2007
- Messages
- 1,625
- Reaction score
- 21
In the EK Biology Content book, I think there is an error in Lecture 3 Microbiology, Section 3.7 Bacterial Envelope on p. 64-67.
The book says gram-positive bacterium have a periplasmic space.
"Gram-positive bacteria... The space between the plasma membrane and the cell wall is called the periplasmic space."
I always learned gram positive bacteria have a plasma membrane and cell wall, while gram negative bacteria have a plasma membrane, cell wall, periplasmic space, and outer membrane. Thus I thought the periplasmic space + outer membrane are unique to gram-negative bacteria.
is EK wrong?
The book says gram-positive bacterium have a periplasmic space.
"Gram-positive bacteria... The space between the plasma membrane and the cell wall is called the periplasmic space."
I always learned gram positive bacteria have a plasma membrane and cell wall, while gram negative bacteria have a plasma membrane, cell wall, periplasmic space, and outer membrane. Thus I thought the periplasmic space + outer membrane are unique to gram-negative bacteria.
is EK wrong?