AP BIOLOGY

Detailed explanation-1: -Oxyhemoglobin travels through the bloodstream to cells, where it breaks down to form hemoglobin and oxygen. The oxygen then passes into cells. So, oxyhemoglobin is unstable because, it readily gives up oxygen to body cells.

Detailed explanation-2: -Red blood cells and haemoglobin The red blood cells contain a pigment called haemoglobin, each molecule of which binds four oxygen molecules. Oxyhaemoglobin forms. The oxygen molecules are carried to individual cells in the body tissue where they are released. The binding of oxygen is a reversible reaction.

Detailed explanation-3: -Oxyhaemoglobin is an unstable compound because.

Detailed explanation-4: -The low pO2, high pCO2, high hydrogen ion concentration (low pH) and a higher temperature present there, all favour the dissociation of oxyhaemoglobin.

Detailed explanation-5: -In the lower concentrations of oxygen found in respiring tissues, the oxyhaemoglobin dissociates to release oxygen. Cells that have higher respiratory rates liberate the extra oxygen that they need.