29 If all the molecules of hemoglobin contained in RBCs were

29. If all the molecules of hemoglobin contained in RBCs were free in the plasma A. it would considerably increase blood oxygen carrying capacity. capillaries. B. it would facilitate delivery of oxygen into tissues supplied by small C. it would facilitate oxygen diffusion into cells distant from blood capillaries. D. it would significantly increase blood osmolarity. E. it would drastically increase osmotic colloid pressure. 30. An increased erythropoietin (EPO) output by the kidneys would lead to all of the following except A. increased hypoxemia. B. increased blood osmolarity. C. increased RBC production. D. increased blood viscosity. E. increased hematocrit. 31. Many RBCs die in the A. stomach and small intestine. B. red bone marrow. C. spleen and liver. D. lymph nodes and thymus. E. stomach and liver.

Solution

29. it would significantly increase blood osmolarity.

osmolarity is change in the concentration of a solution expressed as the total number of solute particles per litre. more hg molecules in the plasma will increase the total number of solute in the plasma.

30. increased hypoxemia.

as this has nothing to do with the production of RBCs but to do with the oxygen transport of the haemoglobin.

31. spleen and liver.
Spleen and liver removes old RBc cells after their life cycle and then degrade them to other products.

32. iron deficiency.

polycythemia is a blood cancer with more production of RBC s in bone marrow cells.

33. Renal disease

renal diseases or diseases effect kidneys have no role in anemia

34. blood viscosity is increased.

The blood viscosity can become as great as 10 times that of water, and its flow through blood vessels is greatly retarded because of increased resistance to flow. This will lead to decreased oxygen delivery. Other factors influencing blood viscosity include temperature, where an increase in temperature results in a decrease in viscosity. This is particularly important in hypothermia, where an increase in blood viscosity will cause problems with blood circulation.

35. bilirubin

As the red blood cells disintegrate, the hemoglobin is degraded or broken into globin, the protein part, iron (conserved for latter use), and heme. The heme initially breaks apart into biliverdin, a green pigment which is rapidly reduced to bilirubin, an orange-yellow pigment.

36. a negative feedback loop.

Any automatic response your body kicks off to bring the function of an organ or structure back to within the normal range is considered negative feedback. Hypoxia or low oxygen in lungs and require more oxygen than a normal breathing rate can supply them with. This creates a negative feedback loop that increases blood pressure and breathing rate to push oxygenated blood into working tissue.

37.Pernicious anemia :

Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. There are many types of anemia.Pernicious anemia is a decrease in red blood cells that occurs when the intestines cannot properly absorb vitamin B12.