Answer
Verified
443.1k+ views
Hint: Haemoglobin is a protein found in the erythrocytes (red blood cells). It imparts red color to the cells and functions to carry oxygen to all the parts of the body and consists of iron.
Complete answer:
Chemically, it is a conjugated protein. It consists of two parts- haem is the prosthetic part and globin is the protein part. It is a tetramer protein. In other words, it has 4 polypeptide subunits (globin subunits), having 2 α and 2 β globin chains. These two dimmers are interlinked. Thus, haemoglobin has an oligomeric structure. Also, the heme part gives a red color. So it is also a chromoprotein.
Additional Information: Haemoglobin is a major hemoprotein of our body. The heme part has iron and 4 pyrrole rings, so also termed as Ferroprotoporphyrin IX. The iron of heme is hexavalent and forms six-coordinate bonds. Four bonds with the nitrogen of pyrrole rings, 5th bond with globin chain, and 6th with oxygen. Iron helps in binding oxygen with Hb. Since Hb serves in the transport and exchange of gases between lungs and tissues, it is also termed as respiratory protein. It is present in vertebrates while also found in some invertebrates like an earthworm, Neiries.
So, the correct answer is ‘Both b and c’.
Note: -Each RBC has approx 250-350 million Hb molecules. About 97% of oxygen is transported by RBCs in our blood.
-Each globin chain folds to form 3 dimensional tertiary structure subunit. In native conformation, Hb has a quaternary structure.
-Carbon dioxide does not bind with Hb and is transported by the globin chain.
Complete answer:
Chemically, it is a conjugated protein. It consists of two parts- haem is the prosthetic part and globin is the protein part. It is a tetramer protein. In other words, it has 4 polypeptide subunits (globin subunits), having 2 α and 2 β globin chains. These two dimmers are interlinked. Thus, haemoglobin has an oligomeric structure. Also, the heme part gives a red color. So it is also a chromoprotein.
Additional Information: Haemoglobin is a major hemoprotein of our body. The heme part has iron and 4 pyrrole rings, so also termed as Ferroprotoporphyrin IX. The iron of heme is hexavalent and forms six-coordinate bonds. Four bonds with the nitrogen of pyrrole rings, 5th bond with globin chain, and 6th with oxygen. Iron helps in binding oxygen with Hb. Since Hb serves in the transport and exchange of gases between lungs and tissues, it is also termed as respiratory protein. It is present in vertebrates while also found in some invertebrates like an earthworm, Neiries.
So, the correct answer is ‘Both b and c’.
Note: -Each RBC has approx 250-350 million Hb molecules. About 97% of oxygen is transported by RBCs in our blood.
-Each globin chain folds to form 3 dimensional tertiary structure subunit. In native conformation, Hb has a quaternary structure.
-Carbon dioxide does not bind with Hb and is transported by the globin chain.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Which are the Top 10 Largest Countries of the World?
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Difference Between Plant Cell and Animal Cell
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Give 10 examples for herbs , shrubs , climbers , creepers
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
How do you graph the function fx 4x class 9 maths CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE