Lesson 2 : Proteins And Amino Acid Flashcards
Who are the 2 individuals discovered proteins in 1839.
GJ Mulder ( Dutch) and JJ Berzelius ( Swedish)
It is derived from the greek word “ proteious which means primary or holding first place.
Protein
Biochemical catalyst known as ________ are proteins .
Enzymes
Proteins known as _____________ serve as the the first line of defense against bacterial and viral infections.
Immunoglobulins
What are the composition of protein?
Carbon
Hydrogen
Nitrogen
What is the molecular weight of protein molecules?
5000 - 25000 kD
It is a small units of proteins which called?
Amino acids
How many standard amino acids are proteins are made up?
20 standard amino acid
What is the largest group of amino acids?
Neutral Amino acids
These amino acid have 2 carboxyl groups and 1 NH2 group.
Acidic amino acid
What do you call a amino acids which have 2 carboxyl groups and 1 NH2 groups?
Monoaminodicarboxylic acid
These amino acids have 1 carboxylic groups and 2 NH2 groups.
Basic amino acid
What do you call a amino acids have 1 carboxylic groups and 2 NH2 groups.
Diamino monocarboxylic acids
What are the examples of neutral amino acid?
Glycine
Alanine
Valine
Leucine
Isoleucine
Serine
Threonine
Phenylalanine
Tyrosine
Tryptophan
Histidine
Proline
Hydroxyproline
Cysteine
Methionine
What are the examples of acidic amino acids?
Aspartic acid
Glutamic acid
What are the examples of basic amino acids?
Arginine
Lysine
Hydroxylysine
What do you call a amino acid that are converted to carbohydrates?
Glycogenic Amino acids
What do you call a vitamin that can synthesis a tryptophan?
Niacin
It is the ones not synthesized by the body and must be taken in diet.
Essential amino acids
What are the 8 examples of essential amino acids?
Valine
Leucine
Isoleucine
Phenylalanine
Threonine
Methionine
Tryptophan
Lysine
It can be synthesized by the body and may not be the requisite components of diet .
Non-essential amino acids
What are the examples of Non- essential amino acid?
Alanine
Arginine
Aspartic acid
Cysteine
Glutamic acid
Glutamine
Glycine
Proline
Serine
Tyrosine
These are growth promoting factors, since they are not synthesized in sufficient quantity during growth.
Semi- essential amino acid
What are the examples of Semi- essential amino acid?
Arginine and Histidine
During coagulation, protein undergoes a change called as _________.
Denaturation
What are the 4 level of protein structure organization?
Primary Structure
Secondary Structure
Tertiary Structure
Quaternary Structure
It defines as the sequence of amino acid linked together to form a polypeptide chain.
Primary Structure of Protein
It arises from the hydrogen bonds formed between atoms of polypeptide back bone.
Secondary Structure of Protein
It is the overall three- dimensional arrangement of its polypeptide chain in space.
Tertiary Structure of Protein
It is the association of several protein chains or subunits into a closely packed arrangements.
Quaternary Structure of Proteins
