Question

Which of the following is not a characteristic of epithelial tissue?
(1) Epithelium tissue has the capability of regeneration.
(2) epithelial tissue cells lie on a basement membrane.
(3) The basement of the tissue is non-cellular, supporting the underlying structures.
(4) None of the above

Answer 1

Hint: Epithelial tissue is widespread throughout the body, covers the hollow organ, and whole body. It helps in protection secretion, diffusion, filtration, and sensory receptors.

complete answer:
Epithelium tissue serves as a protective layer for the body organ system and tissue. It can be classified on the basis of structure as squamous, cuboidal, columnar.
Function of epithelial tissue
1. It acts as a sensory receptor.
2. Epithelial cells do not have any intercellular space as tight junctions hold them as a result intercellular spaces are restricted.
3. They can be of single layer or multiple layers donors are cemented together.
4. Epithelial cell is subjected to wear and tear and hence they have the quality of repair and regeneration.
5. The cells are avascular, that is they lack blood vessels therefore they are classified as a vascular tissues nutrients are delivered by a connective tissue which lies just below it.
6. Epithelium tissue lies on the basement cell. The basement cell provide support to the cell and platforms for Complex signalling

Hence option 4 is the correct option.

Note:
Epithelial tissue protects the entire surface as it is the first layer of Defence against mechanical injury, Chemical exposure. It helps in secretion of saliva mucus. It also helps in absorption of water and nutrients. This acts as an exchange of substance from the body to the external environment. Also it acts as a sensory receptor that helps in transmitting signals to the brain.