Haemoglobin Structure And Functions

Question 1

Hemoglobin weighs………

Answer 1

64400 dalton

Question 2

Haem constitute ……….. % of hemoglobin

Answer 2

4%
Globin 96%

Question 3

Fe binds to ……… region of heme

Answer 3

F8 region

Question 4

Fe in hemoglobin exist in …….. state

Answer 4

Ferrous

Question 5

The hemoglobin chains are made up of ………… helical segments labelled

Answer 5

8 helical segment ls
A-H

Question 6

Methemoglobin has………. amino acid in its F8 region

Answer 6

Tyrosine

Question 7

In hemoglobin the orientation of the charged and uncharged molecule is

Answer 7

Charged molecules are oriented outside: lysine arginine, guanine

Uncharged in the hydrophobic core

Question 8

In hemoglobin the orientation of the charged and uncharged molecule is

Answer 8

Charged molecules are oriented outside: lysine arginine, guanine

Uncharged in the hydrophobic core

Question 9

Other oxygen carrying proteins are

Answer 9

Haemocyanin
Cholorocruonine
Hemerythrin
Vanabins
Erythrocruorin
Leg haemoglobin

Question 10

Carbon dioxide is carried by haemoglobin as ………..

Answer 10

Carbaminohaemoglobin

Question 11

Nitric oxide binds to what portion of the globin chain

Answer 11

Thiol group