Growth of stem in diameter is due to
apical cell
lateral meristem
apical meristem
intercalary meristem
B.
lateral meristem
The stem of plants increases in girth by lateral meristem. It increases the girth of the plant root or stem, rather than its length. As long as thelateral meristems continue to produce new cells, the stem or root will continue to grow in diameter.
What is meant by modification of root? What type of modification of root is found in the:
(a) Banyan tree
(b) Turnip
(c) Mangrove trees
Justify the following statements on the basis of external features:
(i) Underground parts of a plant are not always roots.
(ii) Flower is a modified shoot.
How is a pinnately compound leaf different from a palmately compound leaf?
Explain with suitable examples the different types of phyllotaxy.
Define the following terms:
(a) aestivation
Define the following terms:
(c) placentation
Define the following terms:
(c) actinomorphic
Define the following terms:
(d) zygomorphic
Define the following terms:
(e) superior ovary
Define the following terms:
perigynous flower
Mock Test Series
