Question

select the correct answer
which structure in plants produces a substance that protects the extending roots from developing friction?
a. root cap
b. stele
c. stoma
d. epidermis

Explanation:

The root cap is a structure at the tip of plant roots that secretes a slimy mucilage. This substance lubricates the root tip, reducing friction as the root grows through soil and protects the delicate growing cells behind it. The stele is the central vascular tissue, the stem is the above-ground support structure, and the epidermis is the outer protective layer, none of which produce this friction-reducing substance for extending roots.

Answer:

A. root cap