Extracellular Materials Provide Structure

Question 1

What is an example of an extracellular structure (outside secretion of cell membrane) in bacteria?

Answer 1

the peptidoglycan cell wall

Question 2

channels that permit movement of water, ions, small molecules, RNA, & proteins

Answer 2

plasmodesmata

Question 3

Many animal cells are surrounded by an __ composed of fibrous proteins such as __, gel-like __, and other proteins.

Answer 3

extracellular matrix; collagen; proteoglycans