Why are epithelial membranes not very thick?
A. Epithelial tissues are required to support other cells growing on top of the tissue.
B. Epithelial tissues play a critical role in transport, and must be thin to allow diffusion to occur.
C. Epithelial tissues can only reach a certain thickness because their growth is constrained by microtubules inside the cell membrane.
D. Thick epithelial tissues would collapse due to the drying effect of the environment.
E. Epithelial tissues are programmed to stop dividing after only a few cell cycles.
B. Epithelial tissues play a critical role in transport, and must be thin to allow diffusion to occur.
You might also like to view...
Anaerobic fermentation often provides CO2, which can be used by ________ as an electron acceptor for energy
A) acetogens B) methanotrophs C) methanogens D) acetogens and methanogens
Water surface tension is caused by the __________
bonds. Fill in the blank(s) with the appropriate word(s).
What is the role of the epithelium?
A) Helps protect the body from the external environment B) Transmits electrical signals throughout the body C) Contracts to create body movement D) Provides the padding between the joints
Which association is NOT correct?
A. lipid-steroid B. nucleic acid-DNA C. monosaccharide-glucose D. protein-nucleotide