Lesson 2 : Proteins And Amino Acid

Question 1

Who are the 2 individuals discovered proteins in 1839.

Answer 1

GJ Mulder ( Dutch) and JJ Berzelius ( Swedish)

Question 2

It is derived from the greek word “ proteious which means primary or holding first place.

Answer 2

Protein

Question 3

Biochemical catalyst known as ________ are proteins .

Answer 3

Enzymes

Question 4

Proteins known as _____________ serve as the the first line of defense against bacterial and viral infections.

Answer 4

Immunoglobulins

Question 5

What are the composition of protein?

Answer 5

Carbon
Hydrogen
Nitrogen

Question 6

What is the molecular weight of protein molecules?

Answer 6

5000 - 25000 kD

Question 7

It is a small units of proteins which called?

Answer 7

Amino acids

Question 8

How many standard amino acids are proteins are made up?

Answer 8

20 standard amino acid

Question 9

What is the largest group of amino acids?

Answer 9

Neutral Amino acids

Question 10

These amino acid have 2 carboxyl groups and 1 NH2 group.

Answer 10

Acidic amino acid

Question 11

What do you call a amino acids which have 2 carboxyl groups and 1 NH2 groups?

Answer 11

Monoaminodicarboxylic acid

Question 12

These amino acids have 1 carboxylic groups and 2 NH2 groups.

Answer 12

Basic amino acid

Question 13

What do you call a amino acids have 1 carboxylic groups and 2 NH2 groups.

Answer 13

Diamino monocarboxylic acids

Question 14

What are the examples of neutral amino acid?

Answer 14

Glycine
Alanine
Valine
Leucine
Isoleucine
Serine
Threonine
Phenylalanine
Tyrosine
Tryptophan
Histidine
Proline
Hydroxyproline
Cysteine
Methionine

Question 15

What are the examples of acidic amino acids?

Answer 15

Aspartic acid
Glutamic acid

Question 16

What are the examples of basic amino acids?

Answer 16

Arginine
Lysine
Hydroxylysine

Question 17

What do you call a amino acid that are converted to carbohydrates?

Answer 17

Glycogenic Amino acids

Question 18

What do you call a vitamin that can synthesis a tryptophan?

Answer 18

Niacin

Question 19

It is the ones not synthesized by the body and must be taken in diet.

Answer 19

Essential amino acids

Question 20

What are the 8 examples of essential amino acids?

Answer 20

Valine
Leucine
Isoleucine
Phenylalanine
Threonine
Methionine
Tryptophan
Lysine

Question 21

It can be synthesized by the body and may not be the requisite components of diet .

Answer 21

Non-essential amino acids

Question 22

What are the examples of Non- essential amino acid?

Answer 22

Alanine
Arginine
Aspartic acid
Cysteine
Glutamic acid
Glutamine
Glycine
Proline
Serine
Tyrosine

Question 23

These are growth promoting factors, since they are not synthesized in sufficient quantity during growth.

Answer 23

Semi- essential amino acid

Question 24

What are the examples of Semi- essential amino acid?

Answer 24

Arginine and Histidine

Question 25

During coagulation, protein undergoes a change called as _________.

Answer 25

Denaturation

Question 26

What are the 4 level of protein structure organization?

Answer 26

Primary Structure
Secondary Structure
Tertiary Structure
Quaternary Structure

Question 27

It defines as the sequence of amino acid linked together to form a polypeptide chain.

Answer 27

Primary Structure of Protein

Question 28

It arises from the hydrogen bonds formed between atoms of polypeptide back bone.

Answer 28

Secondary Structure of Protein

Question 29

It is the overall three- dimensional arrangement of its polypeptide chain in space.

Answer 29

Tertiary Structure of Protein

Question 30

It is the association of several protein chains or subunits into a closely packed arrangements.

Answer 30

Quaternary Structure of Proteins