Choose the statement that is true concerning hemoglobin. it can bind a maximum of three oxygen molecules. it is composed of four protein chains and four heme groups. it is found in the plasma portion of blood. when hemoglobin is not bound to oxygen, it appears blue.

answer; ///(b) it is composed of four protein chains and four heme groups;

type 2 happens when excess consumption of high-sugar foods flood the blood supply with glucose and reduce the production and effectiveness of insulin. if a person has prediabetes, they can reduce the risk of full diabetes through regular exercise and a balanced, low-sugar diet.