What do increased temperature in active skeletal muscles and increased concentrations of BPG have in common? What is the result?
1) both allow the Hb molecule to release O2 more readily; improved tissue oxygenation
2) both cause the Hb molecule to bind O2 more tightly; determines how long a blood bank can store blood
3) both allow Hb to have a higher affinity for O2; improved O2 transfer across the placenta
4) Both A and C are correct.