Proteins Flashcards
Major structural components of many natural foods, often determining their overall texture such as tenderness of
meat or fish products.
Proteins
Also known as polypeptides
Proteins
Proteins are organic compounds made up of —– —– arranged in a linear chain and folded into a globular form
Amino acids
Amino acids in a polymer are joined
together by the ——- —– between the —— and —– —- residues.
Peptide bonds
Carboxyl
Amino acids
How many types of amino acids occur
naturally in proteins?
20
Proteins differ from each other to the type, number and sequence of amino acids that make up the
Polypeptide backbone
Protein molecules range from the long, ——– —- that make up connective tissue and hair to the compact, ——- —— that can pass through cell membranes and set off metabolic reactions.
insoluble fibers
soluble globules
Types of Proteins
Example of this type of protein are
– Collagen, keratin, fibrinogen, muscle protein
Fibrous protein
can be obtained by boiling animal bones and connective tissue
Gelatin
purified form of gelatin is obtained
from ———— of the certain fishes
including sturgeon, cod, catfish and carp
Air bladders
What type of protein contain these examples — Albumin, globulin, casein, hemoglobin, all enzymes and hormones.
Globular Proteins
one of a class of simple
proteins, composed of C,H,O,N and
small amount of S.
Albumin
Globular proteins Forms insoluble compounds with many
metallic salts, such as —— of
mercury, —— of copper, and —– of
silver, and is, therefore, used as an
antidote to these poisons.
bichloride
sulfate
nitrate
Building blocks of proteins
Amino acids
Amino acids is composed of 3 groups
What are those?
Carboxylic Acid group
Amino group
And R group
