Proteins

Question 1

Kind of polymer

Answer 1

Heteropolymer

Question 2

Minimum number of amino acids

Answer 2

50

Question 3

Kind of molecules and where found

Answer 3

Macromolecules found in acid insoluble pool

Question 4

Most abundant protein in animal world

Answer 4

Collagen

Question 5

Most abundant protein in biosphere

Answer 5

RuBisCo Ribolose Biphosphate Carboxylase - oxygenase

Involved in carbon fixing during photosynthesis In which CO² to glucose

Question 6

Which gives us the positional information about the protein

Answer 6

Primary structure

Question 7

Which is the N terminal in proteins

Answer 7

The first amino acid or the one on the left

Question 8

Which is C terminal in proteins

Answer 8

The last amino acid or the one on the right

Question 9

Two types of secondary proteins

Answer 9

Alpha Felix and beta pleated sheath

There is also a collagen helix

Question 10

Type of helix observed in proteins

Answer 10

Right hand

Question 11

Cause of secondary structure helix

Answer 11

Formation of hydrogen bonds between every forth amino acid

The hydrogen bond is formed between hydrogen and a highly electro negative atom (N, O, F)

Question 12

Example of alpha helix

Answer 12

Alpha keratin

Question 13

What causes beta pleated sheath

Answer 13

When there are hydrogen bonds formed between hydrogen two or more Polypeptide chains
The hydrogen bond is formed between hydrogen and a highly electro negative atom (N, O, F)

Question 14

Example of beta pleated sheath

Answer 14

Fibroin the protein if silk

Question 15

Collagen helix

Answer 15

The Polypeptide coil of collagen helix is strengthened by establishing hydrogen bond

Question 16

Cause of locking effect in collagen helix

Answer 16

Hydroxyproline and proline

Question 17

View of tertiary protein

Answer 17

3D

Question 18

How does an active site form

Answer 18

By bringing distant amino acids side chains closer forming an active site where the substrate will attach

Question 19

Most important structure in relation to biological functions

Answer 19

Tertiary structure

Question 20

Example of tertiary structure

Answer 20

Myoglobin

Question 21

Haemoglobin breakdown at Quaternary structure

Answer 21

Four helical Polypeptide chains. Two alpha chains, two beta chains

Question 22

Collagen

Answer 22

Intracellular group substance

Long fibroid structural proteins main compound of cartilage, ligaments, tendons bones and teeth

Question 23

Trypsin

Answer 23

Enzyme

Question 24

Insulin

Answer 24

Hormone

Frederick Sanger studied it

Question 25

Antibody or immunoglobulins

Answer 25

Fights infectious agents

Produced by B lymphocytes

Question 26

GLUT 4

Answer 26

Enables glucose transport into cells

Question 27

Haemoglobin

Answer 27

Transports oxygen