PROTEINS
Q. What are proteins?
Ans: Proteins
are complex nitrogenous compounds of high
molecular weight
formed in nature by condensation of large number of amino acids through peptide
bonds.
Q. How peptide
bond is formed?
Ans: The peptide bond is established by condensation of amino
group and carboxylic acid group with elimination of a water
molecule i.e.,
Q.
What is nature of peptide bond?
Ans: They are polar bonds.
Q. What is total number of amino acids found?
Ans: Twenty
Q. What are major
functions of proteins?
Ans: (i) They are fundamental components of all enzymes and
some
of hormones.
(ii)
They are
structural units of skin, bone & cytoskeleton.
(iii)
The dietry
proteins are important energy sources of body.
(iv)
Immune defense
system is composed of proteins.
Q. What is composition of amino acids?
Ans: Amino Acids are composed of amino group, a carboxyl
group, a hydrogen atom and a distinctive side chain, all bonded
to carbon atom.
Q. What is acid hydrolysis product of protein?
Ans: Amino acids are generally obtained by hydrolysis of
proteins.
Q. On what factors
the type of protein depends?
Ans: The type of
protein depends upon the number, type &
sequence of amino
acids involved in its structure.
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