The pigment present in muscle has all characteristics except:
Correct answer: A. Can bind with four O2 molecules
- A. Can bind with four O2 molecules
- B. Single Heme group
- C. Composed of one polypeptid chain
- D. Iron is present
Explanation
Each myoglobin molecule is capable of binding to one oxygen, because myoglobin contains one heme per molecule.
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The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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