Hemoglobin will bind oxygen and release CO2 in places where there is a higher concentration of O2, lower concentration of CO2, lower temperature and lower acidity (as it is in lungs) and will do the reverse – release oxygen and bind CO2 - in places where there is a lower concentration of O2, higher concentration of CO2, higher temperature and higher acidity (as it is in working muscles).   True False While white blood cells never leave the circulation, red blood cells regularly leave it and travel by lymphatic system or find home in other tissues, e.g., lymph nodes, spleen, etc.   True False Blood clotting (coagulation) is a complex process involving many factors and it exhibits positive feedback loops: many of the factors also stimulate production of their own precursors. B lymphocytes mature in the thymus while T lymphocytes mature in the bone marrow   True False Antibodies are molecules on the surfaces of foreign organisms, while antigens are molecules of the immune system that recognize, bind and destroy foreign organisms.   True False Antibodies of the B lymphocytes are secreted into the plasma or lymph and act away from the cell that produced them. Antibodies of T lymphocytes remain on the cell surface of the T cells.   True False

Hemoglobin will bind oxygen and release CO2 in places where there is a higher concentration of O2, lower concentration of CO2, lower temperature and lower acidity (as it is in lungs) and will do the reverse – release oxygen and bind CO2 - in places where there is a lower concentration of O2, higher concentration of CO2, higher temperature and higher acidity (as it is in working muscles).

While white blood cells never leave the circulation, red blood cells regularly leave it and travel by lymphatic system or find home in other tissues, e.g., lymph nodes, spleen, etc.

Blood clotting (coagulation) is a complex process involving many factors and it exhibits positive feedback loops: many of the factors also stimulate production of their own precursors.

B lymphocytes mature in the thymus while T lymphocytes mature in the bone marrow

Antibodies are molecules on the surfaces of foreign organisms, while antigens are molecules of the immune system that recognize, bind and destroy foreign organisms.

Antibodies of the B lymphocytes are secreted into the plasma or lymph and act away from the cell that produced them. Antibodies of T lymphocytes remain on the cell surface of the T cells.