CSS - PMS - CCE - PCS - General Science
Blood System
The average lifespan of a circulating red blood cell is about:
A. 365 days
B. 120 days
C. 12 days
D. 30 days
Correct Answer: B
RBC lifespan is about 120 days.
CSS - PMS - CCE - PCS - General Science
Blood System
Mature human red blood cells normally lack a:
A. Cell membrane
B. Hemoglobin molecule
C. Nucleus
D. Cytoplasm
Correct Answer: C
Mature RBCs lack a nucleus.
CSS - PMS - CCE - PCS - General Science
Blood System
The oxygen-carrying pigment in red blood cells is:
A. Melanin
B. Myoglobin
C. Hemoglobin
D. Bilirubin
Correct Answer: C
Hemoglobin carries oxygen.
CSS - PMS - CCE - PCS - General Science
Blood System
The most abundant formed elements in normal human blood are:
A. Lymphocytes
B. Platelets
C. Neutrophils
D. Red blood cells
Correct Answer: D
RBCs greatly outnumber other formed elements.
CSS - PMS - CCE - PCS - General Science
Blood System
Which blood component is best identified by the following principal role: include antibodies and various transport proteins?
A. Globulins
B. Eosinophils
C. Monocytes
D. Neutrophils
Correct Answer: A
The blood component matching 'include antibodies and various transport proteins' is Globulins.
CSS - PMS - CCE - PCS - General Science
Blood System
Which principal role is correctly associated with Globulins?
A. include antibodies and various transport proteins
B. is the liquid matrix carrying proteins, nutrients, hormones and wastes
C. is converted to fibrin during coagulation
D. release mediators such as histamine
Correct Answer: A
Globulins is associated with include antibodies and various transport proteins.
CSS - PMS - CCE - PCS - General Science
Blood System
Which blood component is best identified by the following principal role: contributes strongly to plasma oncotic pressure?
A. Red blood cells
B. Eosinophils
C. Albumin
D. Hemoglobin
Correct Answer: C
The blood component matching 'contributes strongly to plasma oncotic pressure' is Albumin.
CSS - PMS - CCE - PCS - General Science
Blood System
Which principal role is correctly associated with Albumin?
A. can enter tissues and differentiate into macrophages
B. include antibodies and various transport proteins
C. mediate adaptive immune responses
D. contributes strongly to plasma oncotic pressure
Correct Answer: D
Albumin is associated with contributes strongly to plasma oncotic pressure.
CSS - PMS - CCE - PCS - General Science
Blood System
Which blood component is best identified by the following principal role: is converted to fibrin during coagulation?
A. Fibrinogen
B. Lymphocytes
C. Neutrophils
D. Monocytes
Correct Answer: A
The blood component matching 'is converted to fibrin during coagulation' is Fibrinogen.
CSS - PMS - CCE - PCS - General Science
Blood System
Which principal role is correctly associated with Fibrinogen?
A. can enter tissues and differentiate into macrophages
B. include antibodies and various transport proteins
C. binds and transports oxygen in red blood cells
D. is converted to fibrin during coagulation
Correct Answer: D
Fibrinogen is associated with is converted to fibrin during coagulation.
CSS - PMS - CCE - PCS - General Science
Blood System
Which blood component is best identified by the following principal role: binds and transports oxygen in red blood cells?
A. Hemoglobin
B. Fibrinogen
C. Plasma
D. Globulins
Correct Answer: A
The blood component matching 'binds and transports oxygen in red blood cells' is Hemoglobin.
CSS - PMS - CCE - PCS - General Science
Blood System
Which principal role is correctly associated with Hemoglobin?
A. binds and transports oxygen in red blood cells
B. is converted to fibrin during coagulation
C. participate in primary hemostasis and blood clot formation
D. transport oxygen mainly through hemoglobin
Correct Answer: A
Hemoglobin is associated with binds and transports oxygen in red blood cells.
CSS - PMS - CCE - PCS - General Science
Blood System
Which blood component is best identified by the following principal role: is the liquid matrix carrying proteins, nutrients, hormones and wastes?
A. Monocytes
B. Eosinophils
C. Albumin
D. Plasma
Correct Answer: D
The blood component matching 'is the liquid matrix carrying proteins, nutrients, hormones and wastes' is Plasma.
CSS - PMS - CCE - PCS - General Science
Blood System
Which principal role is correctly associated with Plasma?
A. release mediators such as histamine
B. is the liquid matrix carrying proteins, nutrients, hormones and wastes
C. include antibodies and various transport proteins
D. mediate adaptive immune responses
Correct Answer: B
Plasma is associated with is the liquid matrix carrying proteins, nutrients, hormones and wastes.
CSS - PMS - CCE - PCS - General Science
Blood System
Which blood component is best identified by the following principal role: release mediators such as histamine?
A. Monocytes
B. Albumin
C. Basophils
D. Lymphocytes
Correct Answer: C
The blood component matching 'release mediators such as histamine' is Basophils.
CSS - PMS - CCE - PCS - General Science
Blood System
Which principal role is correctly associated with Basophils?
A. can enter tissues and differentiate into macrophages
B. participate in primary hemostasis and blood clot formation
C. release mediators such as histamine
D. rapidly phagocytose many bacteria during acute infection
Correct Answer: C
Basophils is associated with release mediators such as histamine.
CSS - PMS - CCE - PCS - General Science
Blood System
Which blood component is best identified by the following principal role: are prominent in parasitic infections and allergic responses?
A. Lymphocytes
B. Albumin
C. Eosinophils
D. Globulins
Correct Answer: C
The blood component matching 'are prominent in parasitic infections and allergic responses' is Eosinophils.
CSS - PMS - CCE - PCS - General Science
Blood System
Which principal role is correctly associated with Eosinophils?
A. rapidly phagocytose many bacteria during acute infection
B. participate in primary hemostasis and blood clot formation
C. are prominent in parasitic infections and allergic responses
D. mediate adaptive immune responses
Correct Answer: C
Eosinophils is associated with are prominent in parasitic infections and allergic responses.
CSS - PMS - CCE - PCS - General Science
Blood System
Which blood component is best identified by the following principal role: can enter tissues and differentiate into macrophages?
A. Monocytes
B. Red blood cells
C. Lymphocytes
D. Platelets
Correct Answer: A
The blood component matching 'can enter tissues and differentiate into macrophages' is Monocytes.
CSS - PMS - CCE - PCS - General Science
Blood System
Which principal role is correctly associated with Monocytes?
A. release mediators such as histamine
B. can enter tissues and differentiate into macrophages
C. rapidly phagocytose many bacteria during acute infection
D. transport oxygen mainly through hemoglobin
Correct Answer: B
Monocytes is associated with can enter tissues and differentiate into macrophages.