The membranes of eukaryotes and mycoplasma
A)contain peptidoglycan.
B)contain sterols for "strength."
C)contain ergosterol.
D)are fixed static structures.

Question

Quizplus · Accepted Answer

The membranes of eukaryotes and mycoplasma both contain sterols such as cholesterol or hopanoids, respectively, which provide strength and stability to the membrane. Neither membrane contains peptidoglycan, which is found only in bacterial cell walls. Ergosterol is a type of sterol found specifically in fungi but not in other eukaryotes or mycoplasma. Both eukaryotic and mycoplasma membranes are dynamic structures that can change in composition and fluidity depending on environmental conditions, so they are not fixed static structures.

The Membranes of Eukaryotes and Mycoplasma