AP BIOLOGY

Detailed explanation-1: -Vascular cambium is a layer of meristematic tissue that produces secondary xylem to the inside and phloem to the outside. This is the reason why woody plants can grow in diameter. Figure 3.2.

Detailed explanation-2: -The vascular cambium of trees is a secondary meristem and is responsible for the formation of the xylem and phloem.

Detailed explanation-3: -The vascular cambium, which produces xylem and phloem cells, originates from procambium that has not completely differentiated during the formation of primary xylem and primary phloem.

Detailed explanation-4: -C: The cambium cell layer is the growing part of the trunk. It annually produces new bark and new wood in response to hormones that pass down through the phloem with food from the leaves. These hormones, called “auxins”, stimulate growth in cells.

Detailed explanation-5: -The cambium is defined as the actively dividing layer of cells that lies between, and gives rise to the secondary xylem and phloem.