Biology Questions and Answers
Proteins
- What are proteins? How can
the protein diversity of living
beings be explained?
Proteins are molecules masequences of amino acids bode ofund by a (^)
peptide bond.
The genetic code codifies twenty
different amino acids that can proteins. So there are numerouscompos e
combinations of amino acid which can
form polypeptide chains areason protein molecules can bnd for thise
immensely diverse.
- What is the importance of
proteins for living beings?
Proteins play a fnearly all biological prundamental role inocesses. Due to (^)
their diversity they can assume many
different configurations aplay varied roles in cells annd they cand tissues.
Some protein the structural fufunctionsnction (cell m are noteworthy:embrane
proteins, cytoskeleton proteins, proteins
of the connective tissue), thfunction (enzymes are proteins), the enzymatice
energy storage function (proteins can
be degraded into acetyl-CoA the Krebs cycle), the osmoticand “cycle” regulation
function (albumin), the transportation
function respiratory pi(membrane changments), the immnels, (^) une
protection function (antibodies), the
movement function (contractile
proteins), the endocrine integration
function informative f(hormones) and theunction (membrane (^)
receptors, intracellular signalers). There
are also many functions are not yet known.proteins whose biological
- What is the constitutional
unit of proteins?
The constitutionalthe amino acids. units of proteins are - What is an oligopeptide?
How is it different from a
polypeptide?
Peptide is the molecule formed by the
union of amino peptide bond. Oligopeptide is a peptideacids through the (^)
made of few amino acids (oligo = few).
Polypeptides are amino acids (poli = many), peptides with manyin general (^)
more than 50.
- How many are the known
amino acids that form proteins
in living beings?
There are twenty different known amiacids that form proteins related to theno
genetic code of the living beings.
There are still many other amino acids
as yet not known.
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