Questions: Which of these is not a cell shape present in epithelial tissue? trapezoidal squamous cubodial columnar

The answer is the first one: trapezoidal.

Explanation for each option:

• Trapezoidal: This is not a recognized cell shape in epithelial tissue. Epithelial cells are typically classified into specific shapes such as squamous, cuboidal, and columnar, but trapezoidal is not one of them.

• Squamous: This is a correct cell shape found in epithelial tissue. Squamous cells are flat and thin, resembling scales, and are commonly found in areas where diffusion or filtration occurs.

• Cuboidal: This is a correct cell shape found in epithelial tissue. Cuboidal cells are cube-shaped and are often involved in secretion and absorption, found in glands and ducts.

• Columnar: This is a correct cell shape found in epithelial tissue. Columnar cells are taller than they are wide, resembling columns, and are typically involved in absorption and secretion, found in the lining of the stomach and intestines.

In summary, trapezoidal is not a cell shape present in epithelial tissue.