They cannot move freely but they can vibrate
A receptor refers to a protein molecule, which attains chemical signals from external of a cell. The receptor proteins are categorized by their location. On the other hand, the structural proteins refer to the fibrous proteins. One of the essential activity of the structural protein is to maintain the configuration of the cell.
In the nerve cells, the receptor proteins pick up signals of pain and structural proteins helps in maintaining the shape and configuration of the nerve cell.
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Answer</h2>
Unable to hydrolyze Beta 1-4 linkages
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Explanation</h2>
Cellulose is present in the plant structure. It is insoluble in water and aqueous solution. Humans do not have the necessary bacteria in their intestines that produces the enzyme cellulase required to break down the beta 1,4 linkage of cellulases. So we cannot break down the bond and are unable to digest these polysaccharides.
Answer:
Ratios of water and minerals
Body temperature
Chemical levels
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