In a youngest portion of a woody stem, the epidermis is produced by the ________; in the older woody portion of the stem, the epidermis is replaced by cork produced by the ________.
A) protoderm; cork cambium
B) ground meristem; apical meristem
C) protoderm; vascular cambium
D) procambium; vascular cambium
E) cork cambium; protoderm

Question

Quizplus · Accepted Answer

In the youngest portion of a woody stem, the outermost layer, the epidermis, is produced by the protoderm, a type of meristematic tissue. As the stem ages and undergoes secondary growth, the epidermis is replaced by a protective layer of cork, which is produced by the cork cambium, another type of meristematic tissue specialized in producing the cells that form the cork.

In a Youngest Portion of a Woody Stem, the Epidermis