Question

Resources Feedback Assignment Score: Try Again [ Give Up? 1583/1900 Attempt 4 < Question 5 of 19 > Which five statements about hemoglobin and myoglobin structure are true? Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron atom. Molecular oxygen binds reversibly to Feat in heme. Each iron atom can form six coordination bonds. Two of these bonds are formed between iron and oxygen. Hemoglobin and myoglobin are heterotetramers. Each hemoglobin molecule can bind four oxygen molecules; cach myoglobin can bind only one oxygen molecule. By itself, heme is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron atom. Heme is composed of an organic protoporphyrin component and a metal atom,

Answer 1

M Both hemoglobin and myoglobin contain a prosthetic group called heme, which contains a central iron atan. holecular oxygen binds reversibly to feet in heme. Hemoglobin and myoglobin are heterotetramers. Each hemogloben molecule can bind four oxygen molecules; each myogloben can bind only one oxygen mokeule. By itself home is not a good oxygen carrier. It must be part of a larger protein to prevent oxidation of the iron atom. V