Usually, optical tweezers drag integral proteins a limited distance before they encounter a barrier that causes their release; upon release, they typically spring backward. What does this suggest?
A)the presence of solid barriers
B)the presence of elastic barriers
C)the attachment of the proteins to the cytoskeleton
D)the attachment of the proteins to the endoplasmic reticulum
E)the presence of rubber in the membrane

Question

Quizplus · Accepted Answer

The fact that the integral proteins encountered a barrier and then sprang backward suggests that the barrier is elastic, indicating that choice B is the best option. The other choices do not explain this observation.

Usually, Optical Tweezers Drag Integral Proteins a Limited Distance Before