2. Fish known as the
cheapest source of
protein as became major
part of the family
consumption in the
Philippines.
3. Proteins
Any a large numbers of
organinc compounds that
make up living organisms
and are essential to their
functioning.
Are made up of amino
acids.
4. Amino Acids
An important class of
organic compounds that
contain both the amino (-
NH2) and carboxyl (-COOH)
groups.
10. A protein may be formed
of a single polypetide
chain, or it may consist
of several such chain
held together by weak
molecular bonds.
11. Bonds of Proteins
The primary (1° )
structure of a protein is
simply the sequence of
the amino acids.
Lys-glu-pro-leu- and
so on.
12. The secondary (2° )
structure of a protein is the
interactions between
portions of the peptide chain.
Hydrogen bonding is one such
interaction that leads
to a helix, b sheet and triple
helix structures.
13. The tertiary (3°)
structure of a protein
can be thought of as
its three dimensional
structure. The
tertiary structure
involves the
overlapping or folding
of a peptide upon
itself.
14. A protein has
quaternary (4°)
structure if two or more
polypeptides interact
with one another to from
a biologically active
protein.
15. Each protein is
formed according to a
precise set of
instructions
contained within the
nucleic acid, which is
the genetic material
of the cell.
28. 5. Chromoprotein –
pigmented prothetic
group e.g hemoglobin
(with iron – containing
pigment, heme)
coordinated to a simple
protein portion, globin.
29. Accrdg. to function
1.Structural proteins
– more than half of
the total protein of
the mammalian body
is collagen, found in
skin, cartillage and
bone.