Question

Which of the statement/s below about epithelial tissue is/are CORRECT?

i. The outermost layer of cells in the transitional epithelium lining the gall bladder wall changes shape when it contracts after a fatty meal.

ii. Pseudostratified columnar epithelium looks like a stratified epithelium but its cells actually all have a free apical surface.

iii. Epithelial tissue can be identified deep within the tissue substance of the pancreas and of ALL the other digestive system abdominal organs.

iv. The oxygen and metabolic nutrient requirements of the collagen fibers in your skin relies mainly on diffusion through an epithelial basement membrane.

Answer 1

The answer is the second option.

•Pseudostratified columnar epithelium looks like a Stratified epithelium but its cells actually all have a free apical surface.

•It is actually a simple epithelium but gives a false appearance of Stratified epithelium due to the presence of nuclei at different levels and all cells are in contact with the basement membrane.

•Transitional epithelium is absent in the gall bladder but it has the property to stretch where ever it is present.

•Epithelial tissue mostly forms the outermost covering and is not deeply situated.It forms both external and internal linings of organs.

•Collagen fibres provide structural support to the connective tissue.Collagen itself is a protein.It forms the structural support.

Hence the answer is option ii.