EXAM QUESTIONS WITH 100%
CORRECT ANSWERS [GRADED A+]
When erythrocytes are destroyed, which of the following events occurs? -
✔✔The globin portion of the molecule is broken down into amino acids.
Type AB blood - ✔✔has both A and B antigens on the red cells
In the platelet release reaction, - ✔✔ADP and thromboxanes stimulate
other platelets to become activated.
The hematocrit is - ✔✔d. the percentage of RBCs in a given volume of
blood.
©morren 2025/2026. Year published 2025.
,What vitamin is necessary to produce many clotting factors in the liver? -
✔✔Vitamin K
A white blood cell engulfing a bacterium is an example of blood functioning
in - ✔✔a. protection.
The oxygenated form of hemoglobin is called - ✔✔oxyhemoglobin
The only formed elements that possess a nucleus when mature are the -
✔✔c. leukocytes
Plasma - ✔✔. is the liquid matrix of the blood.
An increased amount of heparin in the blood might - ✔✔. prevent clotting
process.
On which chromosome is there a mutation that leads to sickle cell anemia?
- ✔✔b. chromosome 11
©morren 2025/2026. Year published 2025.
,Blood consists of a matrix of plasma and cells; blood is a subtype of
______ tissue. - ✔✔e. connective
The ability of white blood cells to leave the circulation and enter tissues is
called - ✔✔b. diapedesis.
The nervous system and certain chemicals can cause the constriction of a
blood vessel. This is known as - ✔✔b. vascular spasm
The cascade of events in the intrinsic pathway can be set into motion when
_____ comes into contact with collagen. - ✔✔factor XII
If a blood buffer is absent, what function of the blood would be
compromised? - ✔✔regulation of pH
What is tissue thromboplastin? - ✔✔A compound released by damaged
tissue that initiates the extrinsic clotting pathway
©morren 2025/2026. Year published 2025.
, A deficiency of which of the following stem cells would result in a marked
increase in the clotting time of blood? - ✔✔megakaryoblast
Macrophages are derived from - ✔✔monocytes
Which of the following events is one of the three main stages of
coagulation? - ✔✔conversion of fibrinogen to fibrin
The "pacemaker" of the heart is the - ✔✔SA node
Where is blood moving during the period of ejection? - ✔✔Ventricles to
great vessels
The adult heart averages ___________ grams. - ✔✔250-300
The epicardium - ✔✔covers the surface of the heart.
Energy for contraction of myocardial cells comes primarily from -
✔✔aerobic respiration in the mitochondria
©morren 2025/2026. Year published 2025.