Question 6141)
Of the following organelles, which group is involved in manufacturing :
A. Lysosome, vacuole, ribosome
B. Ribosome, rough ER, smooth ER
C. Vacuole, rough ER, smooth ER
D. Smooth ER, ribosome, vacuole
Answer: B
Explanation: Ribosome, rough ER, smooth ER
Question 6142)
The lymphocytes which are associated with humoral immunity:
A. T-Lymphocytes
B. B-Lymphocytes
C. Both A and B
D. Neutrophils
Answer: B
Explanation: The humoral immunity is associated with B-lymphocytes and is responsible for destroying the
pathogens by producing.
Question 6143)
Part of the blood carries minerals, vitamins, sugar and other foods to the body's
cell?
A. Plasma
B. Platelets
C. Red corpuscles
D. White corpuscles
Answer: A
Explanation: Minerals, vitamins, sugar and foods to body cells are carried by Plasma of the blood. Explanation :
Blood is composed of four different parts namely. Red blood corpuscles (RBC). White blood corpuscles (WBC).
Platelets, Plasma. Each part of the cell is specific to certain functions.
Question 6144)
Select the statement about red blood cells that is incorrect:
A. Mature red blood cells lack nuclei.
B. Red blood cells contain hemoglobin.
C. Deoxyhemoglobin carries oxygen.
D. Red blood cells lack mitochondria.
Answer: C
Explanation: Deoxyhemoglobin carries oxygen.
Question 6145)
The largest cells in the blood that leave the bloodstream to become macrophages
are the:
A. Eosinophils
B. Monocytes
C. Basophils
D. Neutrophils
Answer: B
Explanation: Macrophages are formed through the differentiation of monocytes, one of the major groups of white
blood cells of the immune system. When there is tissue damage or infection, the monocytes leave the bloodstream
and enter the affected tissue or organ and undergo a series of changes to become macrophages.
Question 6146)
A person with eosinophilia, or greater than normal number of eosinophils is most
likely suffering from :
A. Allergies or internal parasites
B. Anemia
C. An autoimmune disease
D. Diabetes
Answer: A
Explanation: Eosinophilia is a higher than normal level of eosinophils. Eosinophils are type of disease-fighting white
blood cell. This condition most often indicates a parasitic infection an allergic reaction or cancer.
Question 6147)
Choose the correct order for the steps of hemostasis:
A. Blood coagulation, platelet plug formation, blood vessel spasm
B. Platelet plug formation, blood coagulation, blood vessel spasm
C. Blood vessel spasm, platelet plug formation, blood coagulation
D. Blood vessel spasm, blood coagulation, platelet plug formation
Answer: C
Explanation: Hemostasis includes three steps that occur in a rapid sequence: 1) vascular spasm, or vasoconstriction,
a brief and intense contraction of blood vessels, 2) formation of a platelet plug, and 3) blood clotting or
coagulation, which reinforces the platelet plug with fibrin mesh that acts as a glue to hold the clot together. Once
blood flow has ceased, tissue repair can begin.
Question 6148)
Which clothing factor is related from damaged tissue and initiates a chain of
clothing events?
A. Prothrombin
B. Thrombin
C. Fibrin
D. Tissue thromboplastin
Answer: D
Explanation: The extrinsic pathway begins with a substance called tissue factor released by damaged blood vessels
and surrounding tissues. In the presence of other plasma proteins (clotting factors) and calcium ions,this leads to
the activation of a protein called factor X.
Question 6149)
Erythroblastosis details also known as hemolytic disease of the newborn, most
often occurs in _ mothers carrying _ fetuses:
A. Rh+:Rh
B. Rh-:Rh+
C. Type A : type O
D. Type B : type A
Answer: B
Explanation: Erythroblastosis details also known as hemolytic disease of the newborn, most often occurs in Rh- _
mothers carrying Rh+ _ fetuses.
Question 6150)
Most common Chemical that used as blood bank anticoagulant:
A. EDTA
B. Heparin
C. Tri-Sodium Citrate
D. Double Oxalate
Answer: C
Explanation: Tri-sodium Citrate is the anticoagulant of choice for coagulation studies because factor V and VIII are
stable in citrate and integrity of other factors is also preserved. Historically 3.8% citrate was used and is still being
used as an anticoagulant for blood collection in coagulation studies.
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