NEET BIOLOGY

Detailed explanation-1: -The inner bark, which in older stems is living tissue, includes the innermost area of the periderm. Primary xylem is the xylem that is formed during the primary growth from procambium of apical meristems is also present in the bark, So the correct option is ‘primary xylem and periderm’.

Detailed explanation-2: -The inner soft bark comprises secondary phloem tissue, whose innermost layer conducts food from the leaves to the remaining parts of the plant.

Detailed explanation-3: -Solution : Bark is a non-technical term that refers to all tissues exterior to vascular cambium viz. periderm (cork cambium, cork and secondary cortex) and secondary phloem.

Detailed explanation-4: -It refers to all the tissues that lie outside vascular cambium. Complete answer: Inner bark is composed of Secondary phloem. The bark includes tissues formed outside the vascular cambium, phellogen, phellen or phelloderm.

Detailed explanation-5: -The bark of the tree comprises all the tissues outside the vascular cambium. Various kinds of cell layers that constitute the bark are – Periderm (phellogen, phellem and phelloderm), primary cortex, pericycle, primary and secondary phloem. These all tissues are present outside the vascular cambium.