FOOD CHEMISTRY
CARBOHYDRATES PROTEINS AND LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Immunoglobulin
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Hemoglobin
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Insulin
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Rubisco
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Detailed explanation-1: -Hemoglobin (Haemoglobin in many varieties of English) is the oxygen binding protein of red blood cells and is a globular protein with quaternary structure. It is a tetramer consisting of four polypeptide subunits; 2 alpha chains and two beta chains. Each chain is bound to a prosthetic group called heme.
Detailed explanation-2: -Hemoglobin, or Hb, is a protein molecule found in red blood cells (erythrocytes) made of four subunits: two alpha subunits and two beta subunits (Figure 20.19). Each subunit surrounds a central heme group that contains iron and binds one oxygen molecule, allowing each hemoglobin molecule to bind four oxygen molecules.
Detailed explanation-3: -One molecule of hemoglobin is made up of four polypeptide chains; two alpha chains and two beta chains. The number of amino acids is different in both types of polypeptide chains. Each alpha chain contains 141 amino acids. Each beta chain contains 146 amino acids.