A tissue has the following characteristics: free surface, single layer of cells, cells are narrow and tall, microvilli, many mitochondria, goblet cells. Which of the following is most consistent with those observations?
(1) Active transport
(2) Epithelium
(3) Simple epithelium
(4) Columnar epithelium
(5) Cuboidal epithelium
(6) Squamous epithelium
(7) Secretion by exocytosis
(8) Movement of mucous across its surface
A) 1, 2, 3, 4, 7
B) 1, 2, 3, 5, 7
C) 1, 2, 3, 4, 8
D) 2, 3, 4, 8
E) 2, 3, 4, 7

Question

Quizplus · Accepted Answer

The tissue described is a simple columnar epithelium, which is involved in active transport and secretion by exocytosis. It has a free surface, single layer of tall, narrow cells with microvilli and goblet cells, indicating its role in absorption and secretion.

A Tissue Has the Following Characteristics: Free Surface, Single Layer