Question

Differentiate btw:
i.cells of involuntary and voluntary.
ii.fibres of voluntary muscle and cardiac muscle .
iii.parenchyma and collenchyma.
iv.meristematic and parenchyma.
v.sclerenchyma and parenchyma.

Answer 1

Dear Student

(i)
Voluntary muscle cells are very long and have sarcomere while involuntary muscle cells are short and do not have sarcomere.

(iii), (v)

	Parenchyma	Sclerenchyma
Very thin cell wall.	Unevenly thickened cell wall.	Thick cell wall.
The cells are loosely packed.	Little space between cells.	No intercellular spaces present, cells are tightly packed.
The cell wall is made up of cellulose.	The cell wall is made up of hemicellulose and pectin.	The cell wall is made up lignin.
Most of the plant tissues are made up of parenchyma cells.	Collenchyma cells make up the epidermal layers.	The outer woody stem portion of large trees is made up of sclerenchyma cells.
Cells are living.	Cells are living.	Matured cells are dead.

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