The new xylem and phloem cells in stems and roots is produced by:?

Question

a. Epidermis
b. Endodermis
c. Apical Meristem
d. Vascular Cambium

I'm almost done with my homework and this is the only one that I'm stuck on.

Answer 1

the new xylem and phloem our u can say secondary xylem and phloem is produced by vascular cambium . this is called secondary growth and it is found only in dicot stem because they have vascular bundles arranged in ring and therefore fasicular and interfasicular cambium join to make complete ring of vasicular cambium which cuts secondary xylem towards inside and secondary phloem outside.

Answer 2

The vascular cambium. The vascular cambium arises between the primary xylem and primary phloem. It is meristematic tissue that is a single cell layer thick, and produces secondary phloem to the outside and secondary xylem to the inside.

The epidermis is on the very outside of the plant. It protects the plant and has no direct contact with xylem and phloem cells. The endodermis is usually found in the roots and controls transport to the vascular tissue. The apical meristem is found at the two ends of the plant and produces new growth at the root tip and shoot tip.

Answer 3

3. Phloem: Phloem is the living tissue that carries organic nutrients (known as photosynthate), particularly sucrose, a sugar, to all parts of the plant where needed. 3. Spongy Mesophyll: Beneath the palisade layer is the spongy layer. The cells of the spongy layer are more rounded and not so tightly packed. There are large intercellular air spaces. These cells contain fewer chloroplasts than those of the palisade layer.

Answer 4

during differentiation vascular cambium produces xylem and phloem

Answer 5

I'm pretty sure that the vascular cambium is what produces new xylem and phloem.