SCI 335 Week 10 Quiz 2

SCI 335 Week 10 Quiz 2 |  Wilmington University

Question 1

When hemoglobin molecules are decomposed, a greenish pigment called ______ is formed.

·         biliverdin

·         biliverdin

 

Question 2

The biconcave cells in blood that lack nuclei when they are mature are the  

·         red blood cells. 

·         macrophages.  

·         white blood cells.  

·         platelets.

 

Question 3

Agglutinogens of the various blood types are examples of  

·         antibodies.  

·         None of these is correct.    

·         antigens.  

·         white blood cells.

 

 Question 4

Sickle-cell anemia is caused by  

·         a lack of intrinsic factor.  

·         an excess of hemoglobin.  

·         a lack of dietary iron. 

·         an abnormal form of hemoglobin.

 

 

Question 5

Of the following, which are most active as phagocytes?  

·         neutrophils 

·         platelets

·         eosinophils  

·         erythrocytes

 

 

Question 6

An abnormally low white blood cell count is called leukocytosis.  

·         True  

·         False

 

 Question 7

An erythrocyte is about one-third hemoglobin by volume.  

·         True  

·         False  

 

Question 8

Which of the following is an agranulocyte?  

·         monocyte  

·         eosinophil  

·         basophil  

·         polymorphonuclear leukocyte

 

 Question 9

The normal white blood cell count is  

·         5,000,000-10,000,000 cells/mm3 of blood. 

·         50,000-100,000 cells/mm3 of blood. 

·         500-1,000 cells/mm3 of blood.  

·         5,000-10,000 cells/mm3 of blood.

 

Question 10

Erythropoeitin release increases in oxygen depleted conditions in response to the body's need for more oxygen by  

·         binding more O2.

·         increasing red blood cell production.  

·         releasing more CO2.  

·         increasing oxygen production.

 

 

Question 11

A blood clot that breaks loose and travels in the blood flow is called a(n) ______.

·         embolus

·         embolus

 

Question 12

Which of the following is not needed for the formation of a blood clot?  

·         albumin  

·         prothrombin  

·         calcium  

·         fibrinogen

 

Question 13

What percent of the population in the US has blood type AB?  

·         9%  

·         41%   

·         3%  

·         47%

 

Question 14

Erythroblastosis fetalis is most likely to become a problem in Rh-negative mothers as  

·         a first Rh-positive fetus develops.  

·         a second Rh-positive fetus develops.  

·         a first Rh-negative fetus develops.  

·         a second Rh-negative fetus develops.

 

Question 15

As a platelet plug forms, platelets release the vasoconstricting substances called  

·         collagen.  

·         serotonin.  

·         fibrin.  

·         creatine.

 

Question 16

After blood type AB, which is the second most rare blood type in the US?  

·         O  

·         A  

·         B  

·         AB

 

Question 17

Compounds produced by the immune system to combat specific antigens are called 

·         antibodies.  

·         MHC complexes.  

·         interleukins.  

·         lymphocytes.

 

Question 18

Which of the following blood types is the most common in the US?  

·         B  

·         O  

·         A  

·         AB

 

Question 19

The process by which bleeding is stopped is ______.

·         hemostasis

·         hemostasis

 

Question 20

The most abundant type of plasma protein is ______.

·         albumin

·         albumin