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WorksheetsBLOOD
Total questions: 20
Worksheet time: 15mins
A newborn baby dies due to a genetic mutation that leads to excessive blood clotting. It is the lack of ability to produce ‘X’ causing this condition. Identify X.
Protein C
Protein S
Antithrombin III
Factor V
Endothelin is released during which of the following?
Platelet plug formation
Vascular spasm
Blood coagulation
Fibrinolysis
Which plasma component is measured in a “serum protein electrophoresis” test?
fibrinogen
globulins and albumin
electrolytes
glucose
_________ is less sensitive than _________ to hypoxia.
Kidney, Liver
Liver, Kidney
Kidney, Spleen
Liver, Spleen
Reticulocytes differ from mature RBCs because they contain:
Nucleus
Mitochondria
Ribosomal RNA
Hemoglobin
A Coagulum consists of -
Dead formed elements of the blood
Fibrinogen and dead formed elements
Only fibrinogen
None of the above
Approximately how many red blood cells are there for every white blood cell in human blood?
70
700
7,000
70,000
Blood collected in a plain test tube (without anticoagulants such as EDTA) clots spontaneously due to:
Platelet clotting factor XII
Platelet clotting factor XIII
Platelet clotting factor 1
None of the above
The faster route of blood coagulation is triggered by:
Prothrombin activator
Contact of blood with a wettable surface
Tissue factor
None of the above
When you donate blood, an anticoagulant is mixed with it to prevent clotting. Which is commonly used?
salt
sugar
vinegar
citrate
The complex physiological process of __________, crucial for stabilizing the initial hemostatic plug and facilitating permanent vascular repair, relies on the active contraction of fibrin threads by platelets and the reinforcing action of Factor XIII.
Blood coagulation
Fibrinolysis
Clot retraction
None of the above
A patient presents with a coagulopathy characterised by inefficient clot consolidation and delayed wound healing, despite an initially formed fibrin plug. This clinical picture is most consistent with a deficiency in which of the following?
The synthesis of vitamin K-dependent clotting factors
The ability of fibroblasts to form connective tissue in the ruptured area
An adequate number of platelets within the forming clot
The normal absorption of lipids through the intestinal lining
Which of these is the approximate weight of Haemoglobin A?
34,000 - 44,000
73,000 - 83,000
64,000 - 65,000
62,000 - 66,000
How many atoms of oxygen can be transported by each Haemoglobin molecule?
4
2
8
1
Assertion: The most important feature of the haemoglobin molecule is its ability to combine loosely and reversibly with oxygen.
Reason: The function of haemoglobin in the body is to combine with oxygen in the lungs and then to release this oxygen readily in the peripheral tissue capillaries, where the gaseous tension of oxygen is much lower than in the lungs.
Both Assertion and Reason are True, and the Reason is the Correct Explanation of the Assertion
Both Assertion and Reason are True, but the Reason is NOT the Correct Explanation of the Assertion
Assertion is true but reason is false
Reason is true but assertion is false
Which type of WBCs are the first responders against bacterial infections
Lymphocytes
Monocytes
Neutrophils
Basophils
Hemoglobin without heme is called:
Protoporphyrin
Apoprotein
Holoprotein
Hemin
What are Defensins?
Antibodies produced by B cells
White blood cell receptors
Small antimicrobial peptides
Small antimicrobial peptides
d. None of the Above
iven the role of vitamin K in the body's hemostatic processes, which of the following conditions would most directly compromise its normal functionality?
A systemic inflammatory response leading to increased platelet consumption
Genetic predisposition resulting in a reduced synthesis of Factor XIII
The excessive formation of new endothelial cells post-injury
Impaired lipid absorption in the small intestine due to inadequate bile release
Why do camels have oval-shaped RBCs instead of biconcave discs?
To increase surface area for oxygen exchange
To allow higher hemoglobin concentration per cell
To withstand dehydration and rapid rehydration without rupturing
To enhance immune function against pathogens
