How can Type I and Type II methanotrophs be distinguished from one another?

Question

Quizplus · Accepted Answer

Type I and Type II methanotrophs can be distinguished by their carbon assimilation pathways and internal membrane structures. Type I methanotrophs use the ribulose monophosphate (RuMP) pathway, while Type II methanotrophs use the serine pathway. Additionally, Type I methanotrophs have intracytoplasmic membranes that are arranged as flat sheets, while Type II methanotrophs have intracytoplasmic membranes that are arranged as vesicles. Gram stain and cellular shape are not reliable distinguishing characteristics for these two groups of methanotrophs.

How Can Type I and Type II Methanotrophs Be Distinguished