Diffusion of cytoplasmic materials between cells within plant tissues is enabled by
A) motor proteins such as kinesin.
B) membrane-lined channels called plasmodesmata.
C) the semirigid cell wall.
D) constantly beating cilia.
E) an internal cytoskeleton.

Question

Quizplus · Accepted Answer

Plasmodesmata are specialized channels between plant cells that allow for the exchange of cytoplasmic materials, such as nutrients, signaling molecules, and even viruses. These channels are lined with membrane, contain cytoplasm, and are able to expand and contract as needed to accommodate the movement of molecules.

Therefore, the correct answer is B.

Diffusion of Cytoplasmic Materials Between Cells Within Plant Tissues Is