Which five statements about hemoglobin and myoglobin structure are true? Each hemoglobin molecule can bind four oxygen molecules
, and each myoglobin can bind only one oxygen molecule. Molecular oxygen binds irreversibly to Fe2+ in heme. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent a change in the oxidation state of the iron ion. Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron ion. Heme is composed of an organic protoporphyrin component and a metal ion. Each iron ion can form six coordination bonds: One of these bonds is formed between iron and oxygen. Hemoglobin and myoglobin are heterotetramers.
The sense of taste and smell are related to one another because they have the same types of receptors. Odor comes from the molecules that is present in the air that stimulates the receptors that is present inside the nose. If one is not able to smell the or its sense of smell is non functional then it cannot have the sense of taste for the same food. This is caused due to the relationship between the smell and taste receptors.
