Question

Assertion: Epithelial tissues protect the underlying tissues.
Reason: Materials are exchanged at the surface across the epithelial tissues.
A. Both Assertion and Reason is the correct explanation for Assertion.
B. Both Assertion and Reasons are correct but Reason is not the correct explanation for Assertion.
C. Assertion is correct but Reason is incorrect.
D. Assertion is incorrect but Reason is correct.

Answer 1

Hint: The human body comprises of many different cells and tissues that function together to regulate the body. The adipose tissue is also a type of tissue located in the parietal and visceral part and the epithelial tissue found throughout the body.

Complete Answer:
- To solve this question, we have to know about the epithelial tissue. Epithelial tissues are found throughout the body. They form the outer and inner covering of the body surface, line body cavities and hollow organs are the major tissue of the glands. They are involved in many different types of function like secretion, protection, excretion, diffusion, absorption, and sensory reception.
- The epithelial tissue involved in the protection from invasion by pathogens, radiation damage, and chemical stress. The skin of mammals comprises thick keratinized dead layers termed as epithelial cells that protect them against the stresses and water loss.
- Cells of the epithelial tissues are packed densely together with minimal amount and it is attached by the intercellular junctions. The epithelial tissues found in the basement of membrane formed from the underlying connective tissue.
- Now, epithelial tissues have a role in the protection of overlying tissues and underlying tissues. Various materials are exchanged at the epithelial tissues of the surface. These materials depend on the type of the epithelial tissue and depend on the location and type of epithelial tissue. Hence, both the reasons and the assertion is a correct statement in themselves, but the given reason is not the correct explanation for the given assertion.

Thus, the correct option is ‘B’. Both Assertion and Reasons are correct but Reason is not the correct explanation for Assertion.

Note: The epithelial tissues are found in the serous membrane of the lungs, glomeruli of the kidneys, inside the blood vessels, heart, found in the capillaries lining, and alveoli of the lungs. The epithelia structure is formed of cube shaped cells of a single layer.