C for a molecule to be absorbed which tissue route

c. For a molecule to be absorbed, which tissue route will take longer? Explain why.
Stratified tissue will take longer to absorb a molecule because the molecule will
need to travel through multiple rows of cells.
11. The structure of the epithelial tissue is directly related to its covering function. Use
Model #2 to determine if the listed epithelial functions below are due to simple or
stratified tissue. Write your answers below and on the provided separate sheet of
paper.
a. Protection: Epithelia protect exposed surfaces from abrasion, dehydration, and
other damage caused by biological and chemical agents = stratified
b. Diffusion: exchange of chemicals by passive transport = simple
c. Absorption: movement of chemicals from lumen into a blood vesicle = simple
Lumen/Air
Absorption
Secretion
Secretion
Absorption

d. Secretion: cells produce a specific chemical that is released into the lumen =
simple
e. Filtration: exchange allows small molecules to pass through epithelial, but
prevents passage of large molecules (i.e. coffee filter) = simple
f. Stretching = tissue distends/widens to accommodate increased fluid volume =
stratified
g. Propulsion = cilia move chemicals/fluids across epithelial tissue surface, moving
the chemicals to another location = simple
12. Have the presenter switch to another POGIL group to exchange responses. Once
done, go back to your original POGIL group. As a group, evaluate the different
responses to epithelial functions, and finalize your answers above.
13. Complete the specific epithelial tissue function and locations table below. Each
bullet requires an answer.
a. Functions : Use your knowledge of epithelial structure and responses to question
#11 to determine the function of each individual epithelial tissue.
b. Locations : Each organ system is lined with different epithelial tissue. The
epithelial lining used is dependent on the org an’s function. Place the following
organs into the below table.