Which of the following cell processes depend on the movement of membrane components and would probably not be possible if membranes were rigid, nonfluid structures?
A)cell movement
B)cell division
C)formation of intercellular junctions
D)endocytosis
E)all of these are correct

Question

Quizplus · Accepted Answer

All of the listed cell processes depend on the movement of membrane components, which would not be possible if membranes were rigid and nonfluid. Cell movement, for example, relies on the movement of membrane components, such as actin filaments, to generate contractions and changes in cell shape. Cell division requires the movement of membrane components, such as microtubules and contractile ring proteins, to segregate and divide the genetic material and cytoplasm. Formation of intercellular junctions, such as tight junctions and desmosomes, also require the movement of membrane components to establish adhesive contacts between neighboring cells. Finally, endocytosis involves the invagination and internalization of membrane components, such as receptors and lipids, which would not be possible if the membrane was rigid and nonfluid. Therefore, all of the listed cell processes would not be possible if membranes were not fluid and dynamic structures.

Which of the Following Cell Processes Depend on the Movement