Location / Function :

$(i)$ Fascicular cambium

$(ii)$ Pericycle

Cortex is the region found between

$(i)$ The …$a$… help in maintaining the pressure gradient in the sieve tubes

$(ii)$ Stomata regulate the process of ….$b$….. and gaseous exchange

Choose correct sentences :

$(1)$ The meristem which present at the tips of roots and shoots are called apical meristem

$(2)$ Apical meristem are secondary meristem

$(3)$ Intercalary meristem is the meristem that occurs in the mature region of roots and shoots of many plants and appear later than primary meristem :

$(4)$ Fascicular vascular cambium and interfascicular cambium are lateral meristem

In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to:

$(a)$ secretion of secondary metabolities and their deposition in the lumen of vessels.

$(b)$ deposition of organic compounds like tannins and resins in the central layers of stem.

$(c)$ deposition of suberin and aromatic substances in the outer layer of stem.

$(d)$ deposition of tannins, gum, resin and aromatic substances in the peripheral layers of stem.

$(e)$ presence of parenchyma cells, functionally active xylem elements and essential oils.

Choose the correct answer from the options given below: