Question

Describe the structure and functions of the living mechanical tissue

Answer 1

The tissue that supports a plant and their growing organs against any deformation and provides mechanical strength is termed as mechanical tissue. Haberlandt (1914) called the mechanical tissue as stereome. Schwendener in 1874 termed the mechanical cells (e.g. collenchyma, bast fibres and libriform fibres) as stereids. Schwendener is of opinion that stereids collectively constitute the stereome or the mechanical tissue system of plants.

Plant organs are to withstand various strains like stretching due to presence of large fruits, bending due to natural calamities like high wind and passing animals and downpour, heavy snow

Answer 2

Answer:

Mechanical tissue is the tissue that protects a plant and its developing organs from deformation and offers mechanical strength.

Explanation:

• One of the living fundamental tissues found in plants is called collenchyma.
• Collenchyma cells have thicker deposits of cellulose in their cell walls and they also appear polygonal in cross-section.
• These thickened cell walls and the longitudinal interlocking of the cells give tissue its strength.
• Collenchyma can appear as cylinders or as discrete strands.
• There are many different types of cells in the ground substance of plants, and some of these cells assist the plant grow in size, as well as store food and conduct water, while others have no specific purpose other than to support and strengthen the plant.

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