Question

Answer question numbers (i) to (ii) on the bases of your understanding of the following paragraph and the related studied concepts.

The covering or protective tissues in the animal body are epithelial tissues. Epithelium covers most organs and cavities within the body. It also forms a barrier to keep different body systems separate. The skin, the lining of the mouth, the lining of blood vessels, lung alveoli and kidney tubules are all made of epithelial tissue. Epithelial tissue cells are tightly packed and form a continuous sheet. They have only a small amount of cementing material between them and almost no intercellular spaces.

i) If there are no intercellular spaces between the cell of epidermal layer, how does exchange or secretion of materials take place?
ii) Which type of epithelium would prevent wear and tear?
iii) Which type of epithelium permit easy movement of molecules across the lining?
iv) Where would one find glandular epithelium?

Answer 1

Answer:

I)diffusion

2) stratified squamous epithelium

3) simple squamous

4)cuboidal epithelium- kidney tubules & salivary gland

Answer 2

$\huge \underline \frak \green{1 \: diffusion}$

$\huge \underline \frak \red{2 \: Starified \: squamous \: epithelium}$

$\huge \underline \frak \blue{3 \: simple \: squamous}$

$\huge \underline \frak \orange{4 \: cubodial \: epithelium \: kidney \: tubules \: and \: salivary}$