BIO 251 UNIT EXAM 1 Part 2
Question 25 of 50
2.0/ 2.0 Points
Which of the following is/are correct in describing thrombosis:
A. A condition characterized by excessive numbers of platelets that increases the risk for
excessive clot formation, a condition known as thrombosis.
B. Thrombosis is a very common, always harmless condition that occurs in the body.
C. A thrombosis is always harmless because the thrombus which is formed always stays
in a blood vessel precisely where it formed.
D. The blood stream contains several different anticoagulants that will result in the
complete, normal breakdown of a thrombus.
E. Two of the above are correct.
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Question 26 of 50
2.0/ 2.0 Points
The term formed elements in blood includes which of the following?
,
A. albumin
B. plasma
C. hematocrit
D. white blood cells
E. All of the above are considered formed elements.
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Question 27 of 50
2.0/ 2.0 Points
The most common blood type of all Americans is which of the following?
A. O-
, B. A+
C. O+
D. AB-
E. B+
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Question 28 of 50
2.0/ 2.0 Points
What is the typical lifespan of a leukocyte?
A. Many leukocytes can live indefinitely if they are in well-protected locations.
B. Because all leukocytes are unable to undergo mitosis (cell division), their lifespan is
usually only a few seconds.
C. The lifespan of a leukocyte is extremely variable, measuring in hours to years or
decades.
Question 25 of 50
2.0/ 2.0 Points
Which of the following is/are correct in describing thrombosis:
A. A condition characterized by excessive numbers of platelets that increases the risk for
excessive clot formation, a condition known as thrombosis.
B. Thrombosis is a very common, always harmless condition that occurs in the body.
C. A thrombosis is always harmless because the thrombus which is formed always stays
in a blood vessel precisely where it formed.
D. The blood stream contains several different anticoagulants that will result in the
complete, normal breakdown of a thrombus.
E. Two of the above are correct.
Feedback: Good work; your answer is correct!
Question 26 of 50
2.0/ 2.0 Points
The term formed elements in blood includes which of the following?
,
A. albumin
B. plasma
C. hematocrit
D. white blood cells
E. All of the above are considered formed elements.
Feedback: Good work; your answer is correct!
Question 27 of 50
2.0/ 2.0 Points
The most common blood type of all Americans is which of the following?
A. O-
, B. A+
C. O+
D. AB-
E. B+
Feedback: Good work; your answer is correct!
Question 28 of 50
2.0/ 2.0 Points
What is the typical lifespan of a leukocyte?
A. Many leukocytes can live indefinitely if they are in well-protected locations.
B. Because all leukocytes are unable to undergo mitosis (cell division), their lifespan is
usually only a few seconds.
C. The lifespan of a leukocyte is extremely variable, measuring in hours to years or
decades.
