Question

Differentiate between each of the following pairs based on the parameter given:
i. Apical meristematic tissue and Lateral meristematic tissue (function)
ii. Parenchyma tissue and Collenchyma tissue (characteristics of cell)
iii. Parenchyma and Sclerenchyma (function)
iv. Collenchyma and Sclerenchyma (location)
v. Xylem and Phloem

Answer 1

Answer:

1, Apical meristems give rise to the primary plant body and are responsible for the extension of the roots and shoots. Lateral meristems are known as secondary meristems because they are responsible for secondary growth, or increase in stem girth and thickness.

2, Parenchyma tissue is composed of thin-walled cells and makes up the photosynthetic tissue in leaves, the pulp of fruits, and the endosperm of many seeds. Collenchyma cells mainly form supporting tissue and have irregular cell walls. They are found mainly in the cortex of stems and in leaves.

3, The function of parenchyma cells is in the storage of foods, in gaseous exchange, and in photosynthesis,

sclerenchyma providing structural support in plants

4, sclerenchyma cells are found in mature parts of the plants or trees.

collencyma cells found in stems and leaves of mature herbaceous plants

5, Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.

Answer 2

Answer:

Answer

Parenchyma is the most simple and specialized tissue which is concerned mainly with the vegetative activities of the plant. The cells are isodiametric with well-developed intercellular spaces, vacuolated cytoplasm and cellulosic cell wall.

Collenchyma is the tissue of the primary body. The cells of the tissue contain protoplasm and are living without intercellular spaces. The cell wall articulate at the corners and are made up of cellulose, hemicellulose, and pectin.

Sclerenchyma is the thick-walled cell tissue. In the beginning, the cell is living and have protoplasm, but due to deposition of impermeable secondary board lignin, they become dead thick and hard.