Ch 19 HW: Blood

Which of the following characteristics is not associated with platelets? They are incapable of oxidative catabolism. They are cell fragments. They contain granules with clotting factors and enzymes. They do not have a nucleus.

They are incapable of oxidative catabolism. Platelets have mitochondria and glycogen deposits, so they are capable of oxidative catabolism.

In the common pathway of coagulation, what factor combines with factor Va and calcium ions to form prothrombin activator? IXa VIIa XIIa Xa

Xa

What ions are necessary for both the intrinsic and extrinsic pathways to the coagulation cascade? magnesium ions calcium ions potassium ions iron ions

calcium ions

When is fibrin produced during the coagulation cascade? intrinsic pathway extrinsic pathway common pathway both intrinsic and extrinsic pathways

common pathway

A patient comes in with a parasitic worm infection. Which of the following blood cell count would you likely see increased? neutrophils Basophils eosinophils Erythrocytes

eosinophils Eosinophil count would increase because it fights of parasitic worm infections

Bilirubin comes from the breakdown of: globin chains of hemoglobin. amino acids of hemoglobin. heme molecules of hemoglobin that lack iron. iron ions found in hemoglobin molecules.

heme molecules of hemoglobin that lack iron.

What is the oxygen-binding protein found in erythrocytes? beta globulin albumin gamma globulin hemoglobin

hemoglobin

Which type of leukocyte may produce antibodies? eosinophil lymphocyte monocyte neutrophil

lymphocyte

Platelets form from large cells called __________. lymphoblasts thrombocytes macrophages megakaryocytes

megakaryocytes Platelets are small pieces of plasma membrane and cytoplasm that break off of megakaryocytes.

During leukopoiesis, neutrophils are derived from __________. monoblasts proerythroblasts lymphoblast myeloblasts

myeloblasts Neutrophils are granulocytes and therefore are derived from myeloblasts.

When fibrin levels increase, thrombin production is inhibited. This is an example of a __________. fibrinolysis vascular spasm positive feedback loop negative feedback loop

negative feedback loop Fibrin inhibits the production of thrombin via a negative feedback loop, so thrombin activity decreases as fibrin levels increase.

Jerry is an alcoholic and does not eat enough food. He has been diagnosed with a vitamin deficiency. What blood disorder is the most likely a result of this deficiency? iron-deficiency anemia hemolytic anemia aplastic anemia pernicious anemia

pernicious anemia

The enzyme that coverts fibrinogen to fibrin is __________. prothrombin tissue factor thrombin factor Xa

thrombin The enzyme thrombin converts fibrinogen into fibrin. Fibrin stabilizes the platelet plug and seals the damaged vessel.

The process by which a blood clot dissolves is called __________. thrombolysis coagulation anticoagulation clot retraction

thrombolysis Thrombolysis involves the breakdown of fibrin. Once that occurs, the remaining components of the clot dissociate from the endothelium.

Which of the following is not one of the functions of blood? blood clotting to maintain body temperature to transport and exchange gases to protect vital organs

to protect vital organs This is not one of the functions of blood.

Select the appropriate pathway for the steps of hemostasis. vascular spasms, platelet plug formation, coagulation, thrombolysis, clot retraction vascular spasms, platelet plug formation, coagulation, clot retraction, thrombolysis vascular spasms, coagulation, platelet plug formation, clot retraction, thrombolysis platelet plug formation, vascular spasms, coagulation, clot retraction, thrombolysis

vascular spasms, platelet plug formation, coagulation, clot retraction, thrombolysis

The most abundant component of plasma is: proteins. gases. ions. water.

water.

Which of the following donors will be suitable for a recipient with type A+ blood? A donor with B+ blood A donor with AB+ blood A donor with O- blood A donor with AB- blood

A donor with O- blood The donor blood has no antigens, so the recipient blood will not react to the donor's blood. Even though the donor blood has anti-A and anti-Rh antibodies, they will not be able to destroy enough of the recipient's cells, so this transfusion will work.

Mr. Ramirez, whose blood type is AB-, has been injured and requires a blood transfusion. Which blood type may be acceptable for Mr. Ramirez to acquire? All of the answers are correct A+ O+ B-

B- Since Mr. Ramirez does present B antigens, B- can be donated.

Which of the following characteristics is not associated with erythrocytes? Filled with hemoglobin Capable of protein synthesis Biconcave discs Anucleate

Capable of protein synthesis Mature erythrocytes do not have a nucleus and organelles and so are not capable of carrying out protein synthesis.

How would T3/T4 (thyroid) hormones travel via the blood? View Available Hint(s) Freely dissolved in the plasma Bind to albumin Bind to thyroglobulin T3/T4 will bind to a transport protein

T3/T4 will bind to a transport protein Because T3/T4 are lipid soluble they need transport proteins to be distributed evenly into the blood.