MMSC423 Hematology Exam 1 Questions and Answers Fully Solved Latest Update 2025-2026
ADP is secreted from the:
dense granules
beta granules
delta granules
alpha granules - Answersdense granules
Factor III is known as
prothrombin time
calcium
christmas factor
tissue factor - Answerstissue factor
Which of the following is true regarding the plasma coagulation zymogens?
- are haptens that induce peptide binding to make larger active molecules
- activation normally occurs throughout the tissues of the body when vascular injury occurs
- serine proteases that form complexes to activate other zymogens to ultimately generate
thrombin
- circulate normally in their active form - Answersserine proteases that form complexes to
activate other zymogens to ultimately generate thrombin
What reaction is essential in the production of vitamin K dependent coagulation factors?
reduction of tryptophan
oxidation of valine
gamma carboxylation of glutamic acid
dehydrogenation of leucine - Answersgamma carboxylation of glutamic acid
Another name for Factor X is:
Stuart-Prower
Christmas Factor
, Fitzgerald Factor
Hagemen Factor - AnswersStuart-Prower
What happens to the fibrin monomers created when thrombin cleaves fibrinopeptides A and B
from fibrinogen?
digested quickly by tissue plasminogen activator
converted to plasminogen
immediately inactivated to prevent excess clotting
polymerized and are stabilized by FXIIIa - Answerspolymerized and are stabilized by FXIIIa
A tube of anticoagulated blood was centrifuged. After centrifugation which of the following
describes the correct sequence of layers from top to bottom of the tube?
buffy coat, plasma, red blood cells
buffy coat, red blood cells, plasma
plasma, buffy coat, red blood cells
red blood cells, buffy coat, plasma - Answersplasma, buffy coat, red blood cells
Factor VII is known as:
fibrinogen
stable factor
christmas factor
labile factor - Answersstable factor
Tissue Factor Pathway Inhibitor inactivates which factor?
IIa
I
XIa
VIIa - AnswersVIIa
What is the role of the thrombin-thrombomodulin complex?
activates thrombin
ADP is secreted from the:
dense granules
beta granules
delta granules
alpha granules - Answersdense granules
Factor III is known as
prothrombin time
calcium
christmas factor
tissue factor - Answerstissue factor
Which of the following is true regarding the plasma coagulation zymogens?
- are haptens that induce peptide binding to make larger active molecules
- activation normally occurs throughout the tissues of the body when vascular injury occurs
- serine proteases that form complexes to activate other zymogens to ultimately generate
thrombin
- circulate normally in their active form - Answersserine proteases that form complexes to
activate other zymogens to ultimately generate thrombin
What reaction is essential in the production of vitamin K dependent coagulation factors?
reduction of tryptophan
oxidation of valine
gamma carboxylation of glutamic acid
dehydrogenation of leucine - Answersgamma carboxylation of glutamic acid
Another name for Factor X is:
Stuart-Prower
Christmas Factor
, Fitzgerald Factor
Hagemen Factor - AnswersStuart-Prower
What happens to the fibrin monomers created when thrombin cleaves fibrinopeptides A and B
from fibrinogen?
digested quickly by tissue plasminogen activator
converted to plasminogen
immediately inactivated to prevent excess clotting
polymerized and are stabilized by FXIIIa - Answerspolymerized and are stabilized by FXIIIa
A tube of anticoagulated blood was centrifuged. After centrifugation which of the following
describes the correct sequence of layers from top to bottom of the tube?
buffy coat, plasma, red blood cells
buffy coat, red blood cells, plasma
plasma, buffy coat, red blood cells
red blood cells, buffy coat, plasma - Answersplasma, buffy coat, red blood cells
Factor VII is known as:
fibrinogen
stable factor
christmas factor
labile factor - Answersstable factor
Tissue Factor Pathway Inhibitor inactivates which factor?
IIa
I
XIa
VIIa - AnswersVIIa
What is the role of the thrombin-thrombomodulin complex?
activates thrombin
