Ch 19 Blood

Formed elements make up about what percentage of blood? 45 percent 20 percent 60 percent 30 percent 55 percent

45 percent

What is the role of transferrin? -It combines with heme to form hemoglobin. -It activates marrow to increase RBC production. -It binds to bilirubin for excretion. -It transports iron ions in the plasma.

It transports iron ions in the plasma.

Which plasma protein transports fatty acids and some hormones? translipin hormone-binding protein albumin gamma globulin steroid-binding protein

albumin

The most abundant plasma protein is antibodies. transferrin. fibrinogen. hemoglobin. albumin.

albumin.

A plasma protein essential for blood coagulation is albumin alpha. lipoprotein C. immunoglobulin A. fibrinogen. metalloprotein D.

fibrinogen.

The percent fraction of formed elements relative to whole blood is the hematocrit. differential cell count. specific gravity. packed volume. viscosity.

hematocrit.

Each heme ring in hemoglobin encloses an atom of iron. copper. calcium. sodium. magnesium.

iron.

Which organ secretes most of the plasma proteins? heart liver brain pancreas kidney

liver

The chief difference between plasma and interstitial fluid involves the concentration of glucose. electrolytes. water. proteins. nitrogen wastes.

proteins.

In adults, the only site of red blood cell production, and the primary site of white blood cell formation, is the thymus. red bone marrow. yellow bone marrow. spleen. liver.

red bone marrow.

Aged and damaged erythrocytes are broken down by macrophages in the liver. bone marrow. digestive tract. spleen. spleen, liver, and bone marrow.

spleen, liver, and bone marrow.

The most abundant component of plasma is (are) nutrients. ions. gases. water. proteins.

water.