A student claims that both freeze-fracturing techniques and cell fusion experiments provided evidence that supported the fluid mosaic model used to describe the cell membrane.Which statement best evaluates this student's claim?
A) The claim is accurate because freeze-fracturing techniques revealed protein movement within a membrane, while cell fusion experiments showed how proteins were embedded in the lipid bilayer.
B) The claim is accurate because freeze-fracturing techniques showed how proteins were embedded in the lipid bilayer, while cell fusion experiments revealed protein movement within a membrane.
C) The claim is inaccurate because freeze-fracturing techniques did not show how proteins or lipids could move about within a membrane as cell fusion experiments did.
D) The claim is inaccurate because cell fusion experiments did not reveal the distribution of proteins within the lipid bilayer as freeze-fracturing techniques did.
E) The claim is inaccurate because the fluid mosaic model is supported by evidence obtained from experiments other than those using freeze-fracturing or cell fusion techniques.

Question

Quizplus · Accepted Answer

Both freeze-fracturing techniques and cell fusion experiments supported the fluid mosaic model in different ways. Freeze-fracturing techniques revealed the presence and distribution of proteins within the lipid bilayer, while cell fusion experiments showed how proteins could move within a membrane. Therefore, the statement in option B accurately reflects how both techniques contributed to the evidence for the fluid mosaic model.

A Student Claims That Both Freeze-Fracturing Techniques and Cell Fusion