Question

3. A plant tissue cells are elongated and thickened with cellulose strips at the corners.
a. Name the tissue having these features.
b. How is it involved in storing starch?
c. How does it help young stems and leaves to bend without breaking?

Answer 1

Plant tissue cells that are elongated and thickened with cellulose strips at the corners are called Collenchyma.

• Collenchyma is one of the plant's simple permanent tissues. It is made up of only one type of cell because it is a basic tissue.
• The Collenchymatous tissue cells are elongated and maintain protoplast as they mature.
• The cells have a thin primary cell wall, i.e stretchable.
• The cell wall is composed of cellulose and pectins, and it is thickened unevenly at the cell's corners.
• This tissue gains mechanical strength as a result of the thickening.
• Collenchyma is mainly found on the periphery of herbaceous angiosperm stems and leaves.
• The Collenchymatous tissues in these plants are responsible for providing mechanical support and tensile strength to their non-woody stems and leaves.
• The Collenchymatous tissues are stretched to allow cell elongation and proliferation.
• The presence of collenchyma causes the leaves and stems of herbs to bend but not break in the wind.
• Collenchyma helps in the production of sugar.
• When the chloroplast is present, they can also store sugar in the form of starch and are known to assimilate food.

Answer 2

A collenchyma plant tissue cells are elongated and thickened with cellulose strips at the corners.

Explanation:

• In plants, collenchyma is a tissue that supports live elongated cells with uneven cell walls.
• In cross - sectional area, collenchyma have substantial layers of cellulose in their cell walls and look octagonal.
• They have live cells in their bodies.
• It demonstrates the deposit of extra cellulose in the cell's corners.
• The intercellular gaps are usually empty.
• The morphology of their cells is elongated.
• Some plant roots and embryos, as well as seeds and fruit, act as glucose storage units.
• In the presence of sunshine, cells in plant leaves generate starch. Collenchyma is used in the production of sugar.
• When the chloroplast is present, they may also store sugar in the form of starch and are known to absorb meals.
• Collenchyma gives plant parts elasticity and flexibility, which protects them from breaking when bent.
• Collenchyma is a permanent tissue type.
• It permits plant components to be bent easily without breaking.
• It offers mechanical support to plants, allowing them to be more flexible.