• North Seattle College

• BIO 242

Anatomy and Physiology 2 EXam 55 Q&A - North Seattle College

Question 2

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Which of the following drug mechanisms of action would cause an INCREASE

rather than decrease in blood clotting?

A drug that blocks vitamin K activity

A drug that blocks the conversion of fibrinogen to fibrin

A drug that blocks the activation of Factor X

A drug that blocks the conversion of plasminogen to plasmin

A drug that blocks platelet aggregation and activation

IncorrectQuestion 4

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A pharmaceutical company is working on a drug to help decrease blood

clotting in patients. The company has developed several types of drugs with

different effects. Which of the following would tend to INCREASE clotting

rather than decreasing it?

A drug that inhibits the conversion of Factor X to prothrombinase

A drug that inhibits the conversion of fibrinogen to fibrin

A drug that enhances heparin secreted from basophils

A drug that inhibits the conversion of plasminogen to plasmin

Question 5

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The function of lipoproteins is to:

Initiate inflammation

Transport O2 through the blood

Transport large amounts of lipophilic substances, such as cholesterol,

through the blood

Transport individual molecules of lipids, such as fatty acids, through the

blood

Question 6

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Most plasma proteins are made in the:

thymus

spleen

kidneys

liver

red marrow

IncorrectQuestion 7

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A drug that enhances the activation of plasminogen to plasmin will cause:

Agglutination

Increased clotting

Decreased clotting

inflammation

IncorrectQuestion 8

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The immature red blood cell that is released into the blood, but has not yet

fully taken on a biconcave disc shape, is called:

reticulocyte

proerythroblast

hemocytoblast

erythrocyte

megakaryocyte

IncorrectQuestion 9

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Which of the following is FALSE regarding the regulation of erythropoiesis?

Someone with impaired ability to draw oxygen into their lungs will have

elevated levels of EPO

Kidneys monitor blood O2 levels

EPO targets cells in the red marrow

Increased levels of EPO lead to increased production of red blood cells

In response to anemia, less EPO will be secreted

Question 10

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The inner epithelial lining of blood vessels is called:

endothelium

hemostasis

platelet

agglutinogen

Question 11

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Which of the following anemias is NOT caused by a vitamin or mineral

deficiency?

iron-deficiency

sickle cell

megaloblastic

IncorrectQuestion 12

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Which of the following is true of BOTH endothelial cells AND platelets?

They are both derived from megakaryocytes

They both secrete chemicals that lead to the activation of Factor X

They both secrete plasminogen

They are both simple squamous

IncorrectQuestion 13

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The stem cell that gives rise to ALL blood cells, including erythrocytes and all

leukocytes, is called

hemocytoblast

myeloid stem cell

lymphoid stem cell

megakaryocyte

IncorrectQuestion 14

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Patients with COPD (Chronic Obstructive Pulmonary Disease) have decreased

ability to draw Oxygen into their lungs. We would expect these patients to

have ________ levels of erythropoietin and a __________ hematocrit:

elevated; low

depressed; high

elevated; high

depressed; low

IncorrectQuestion 15

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