The cell in the following figure is moving by producing pseudopodia.This type of movement is a result of the reorganization of a certain component of the cytoskeleton (labeled).

Some of the various labeled lines in the figure show
A) microtubules elongating at the leading edge of movement.
B) microfilaments disassembling at the trailing edge of movement.
C) different types of intermediate filaments located in different parts of the cell.
D) motor proteins attached to microtubules pushing the plasma membrane forward.

Question

The cell in the following figure is moving by producing pseudopodia.This type of movement is a result of the reorganization of a certain component of the cytoskeleton (labeled).

Some of the various labeled lines in the figure show
A) microtubules elongating at the leading edge of movement. 
B) microfilaments disassembling at the trailing edge of movement. 
C) different types of intermediate filaments located in different parts of the cell. 
D) motor proteins attached to microtubules pushing the plasma membrane forward.

Quizplus · Accepted Answer

The movement by producing pseudopodia is a result of the reorganization of microfilaments, which are responsible for the extension and contraction of the cell membrane in the direction of movement. Therefore, the correct choice is B, which describes the disassembly of microfilaments at the trailing edge of the cell. Choices A, C, and D are incorrect because they do not correspond to the type of movement described in the question.

The Cell in the Following Figure Is Moving by Producing