Blood Answers

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William Harvey discovered circulation. First, as he tightened a bandage around an arm, he noticed that the fingers turned blue and cold. Then, he used a less tight bandage and noticed that the hand swelled. With further research, what conclusion could he reach?

A
The blood moving toward the hand contains oxygen.
B
The blood moving away from the hand picks up oxygen.
C
Veins carry oxygenated blood and are deep in the skin.
D
Arteries carry deoxygenated blood and are deep in the skin.
2
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What are the threadlike proteins that attach to platelets in blood clotting?

A
coagulant
B
thrombocytes
C
hemoglobin
D
fibrin
3

Kristen cut her hand on a piece of glass. As the blood clots, how do white blood cells prevent bacteria on the glass from infecting her blood?

A
They bring more oxygen to the site for repair.
B
They destroy pathogens that enter the wound.
C
They form the platelet plug.
D
They cause blood vessels to constrict.
4

Which of the following is a characteristic of blood type AB+?

A
has antibodies A and B in the blood plasma
B
has antigens A and B on the red blood cells
C
has no Rh antigen on the red blood cell
D
has antibodies O in the blood plasma
5

Which component of blood protects us from invading foreign material?

A
plasma
B
erythrocytes
C
thrombocytes
D
leukocytes
6

What is the ABO blood classification based on?

A
antibody on the red blood cell
B
antigen in the blood
C
antigen on the red blood cell
D
hemoglobin in the blood
7

Sickle cell anemia is a condition where the red blood cells are deformed. Which is affected by sickle cell anemia?

A
healing of cuts
B
transportation of oxygen
C
creation of blood type
D
protection against disease
8

Karl Landsteiner placed animal blood in human blood and discovered that the blood clumped. Which did his creativity lead to?

A
understanding the process of blood clotting
B
understanding the formation of blood cells
C
understanding the function of antibodies
D
understanding A, B, AB, and O blood groups
9

Which component of blood makes up 55 percent of the blood volume?

A
red blood cells
B
white blood cells
C
platelets
D
plasma

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