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Exam 21: Blood

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Question 51

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Erythropoietin is a hormone produced by the _______________ to increase the rate of production and maturation of erythrocyte progenitor and erythroblast cells.

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Question 52

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In the centrifuged sample of blood illustrated,which number indicates the layer containing water,plasma proteins,nutrients,and waste products?

A) 1
B) 2
C) 3
D) None of the answers is correct.

E) C) and D)
F) None of the above

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Question 53

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The presence of hemoglobin in the urine is called ________________.

Plasma makes up about ______ percent of a centrifuged sample of whole blood.

How many oxygen molecules may bind to a single molecule of hemoglobin?

The leukocyte that releases histamine is the

The molecule to which both oxygen and carbon dioxide can attach in an erythrocyte is called _________________.

Why is the name "thrombocyte" inappropriate for platelets?

The process of producing the formed elements of blood is called

The process of erythrocyte production is called _______________.

An abnormally small number of platelets in circulating blood is termed _________________.

____________ is the attraction of leukocytes to a site of infection due to the presence of molecules released by damaged cells,dead cells,or invading pathogens.

The heme group from the phagocytized erythrocyte is converted into a green pigment called ________________.

When viewing a centrifuged blood sample,the erythrocytes will be on the top.

Which most closely approximates the percentage of water in plasma by weight?

Which term best describes the function of blood when considering the presence of leukocytes and antibodies?

Which events occur during the recycling of aged or damaged erythrocytes? (Order is not important.) A: The heme group is converted into biliverdin. B: Bilirubin is stored in the liver. C: The iron ions in hemoglobin are removed. D: The iron ions are stored in the liver. E: The iron ions are stored in the red bone marrow. F: Membrane proteins and globin proteins are broken down and reused. G: The erythrocyte contents,excluding the globins,are excreted via the digestive tract unchanged.

The "buffy" coat of the middle layer of a centrifuged blood sample is composed of

Which term best describes the function of blood when considering the presence of carbon dioxide and endocrine hormones?

The life span of an erythrocyte is about _________ days.