How does the cork act as a protective tissue explain?
The cork cells are dead and compactly packed with no intercellular space. Their cell walls are coated with a waxy substance, suberin, which do not allow water and gases to pass through. Therefore, it protects the plant against mechanical injury and also prevents the loss of water by evaporation.
How does cork act as a protective tissue class 9?
Cork act as a protective tissue because (i) Its cells are dead and compactly arranged without intercellular spaces. (ii) They also have deposition of suberin on the walls that makes them impervious to gases and water.
How does water hyacinth float on water surface explain?
Water hyacinths have large air cavities in the parenchyma tissue. For this reason, it floats in water. This specialized parenchyma tissue which is present in water hyacinth is called aerenchyma. This tissue has air-filled spaces inside and because the air gets trapped inside especially in the stem part.
Which tissue in water hyacinth helps it to float in water How is it different from the tissue under epidermis which provides flexibility to plants?
the plants like water hyacinth can float in water because the air civities are present in them,the tissue which helps them to float is parenchyma such type of parenchyma is called aerenchyma. large air cavities are present in parenchyma to give buoyancy to the plants. hope it help’s you.
Who does cork act as a protective tissue?
It is a protective tissue with suberized cells. Cork is provided with submarines. Subring is a waterproofing waxy substance that prevents water from entering into the tree and it prevents plants from injury and from loss of evaporation.
What is tissue Short answer?
Question 1: Define the term “tissue”. Answer: A group of cells which is meant to perform a specific function is called tissue. … Answer: Simple tissues are composed of similar cells, while complex tissues are composed of different types of cells.
How does the crock act as a protective tissue?
Cork acts as a protective tissue because its cells are dead and compactly arranged without intercellular spaces. They have deposition of suberin on the walls that make them impervious to gases and water.
What is the function of cork Class 9?
The walls of cork cells contain a chemical called suberin, which makes them impermeable to water and gases. Thus, cork cells prevent water loss from plants and also make them more resistant to bacterial and fungal infection.
What helps water hyacinth to float on water?
In aquatic plants that float over the surface of the water, they possess some kind of air-filled tissues called aerenchyma which provides buoyancy to the plant and allows them to float on the water.