Answer:
A callus is a hardening of skin, keratin is the protein which is abundant in callus. Skin is a protective layer against a external environment. Outer layer of skin consist of keratin which is also found in hair. Callus is the accumulation of dead cells result due to friction and pressure exerts on the part in which they are present. The keratin component (keratinocytes) remains undifferentiated in these dead cells which causes hardening in callus.
Solution:
The function of a protein is determined by its shape.
The shape of a protein is determined by its primary structure (sequence of amino acids).
The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.
Answer:
The incorrect assertive is letter C. it forms pseudopodia for mobility.
Explanation:
The glycocalyx or glycocalyx is a wrapper outside the plasma membrane present in animal cells and some protozoa. The term glycocalix derives from the Greek glykys, sugar, and the Latin calyx, bark, a sugar peel. It consists of lipid-associated carobhydrates, commonly called glycolipids, and protein-associated caroboidates, called glycoproteins.
According of all functions we have about glicocalix, the assertive letter C is the only is not a function about this structure. The other ones, like allows bacteria to stick to a host or the environment, biofilm formation and protection a bacteria about the drying out process are function of the glycocalix.
Alcoholic fermentation; carbon dioxide. Alcoholic fermentation produces alcohol and carbon dioxide in bread. The alcohol evaporates during the baking process.