EVERYDAY SCIENCE

Detailed explanation-1: -Bark refers to all the tissues outside the vascular cambium and is a nontechnical term. It overlays the wood and consists of the inner bark and the outer bark. The inner bark, which in older stems is living tissue, includes the innermost layer of the periderm .

Detailed explanation-2: -The vascular cambium and cork cambium are secondary meristems that are formed in stems and roots after the tissues of the primary plant body have differentiated. The vascular cambium is responsible for increasing the diameter of stems and roots and for forming woody tissue. The cork cambium produces some of the bark.

Detailed explanation-3: -The vascular cambium is the main meristem in the stem, producing undifferentiated wood cells inwards and bark cells outwards.

Detailed explanation-4: -Cork cambium consists of a single layer of relatively undifferentiated cells within the periderm. Cambium tissue is found on the outside of the woody tissue of the plant and forms a ring of cells that continues along the length of the mature stem or branch.

Detailed explanation-5: -The inner soft bark, or bast, is produced by the vascular cambium; it consists of secondary phloem tissue whose innermost layer conveys food from the leaves to the rest of the plant. The outer bark, which is mostly dead tissue, is the product of the cork cambium (phellogen).