WGU Biochem Unit 5 Myoglobin/Hemoglobin questions with correct answers

hemoglobin has how many subunits that can bind heme to iron to oxygen? CORRECT ANSWER 4 myoglobin has how many subunits? CORRECT ANSWER 1 myoglobin vs hemoglobin: has higher affinity for oxygen? CORRECT ANSWER myoglobin _______________ is more saturated with O2 in smaller amounts of O2 myoglobin vs hemoglobin CORRECT ANSWER myoglobin. oxygen dissociation curve is more steep at first. when hgb is bound to oxygen, what shape is taken and color? CORRECT ANSWER Relaxed state. planar/linear shape. color is bright red when hgb is releasing oxygen to tissues in need what shape is taken and color? CORRECT ANSWER Bent shape, Tense state. blue/purple color what is deoxyhemoglobin? CORRECT ANSWER hemoglobin without oxygen the binding of one oxygen molecule to deoxyhemoglobin ______________ affinity of remaining sites on the same hemoglobin molecule? CORRECT ANSWER increases % hemoglobin that has O2 bound to iron regardless of red cell concentration CORRECT ANSWER hemoglobin saturation, O2 sat/pulse ox