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SCN1111 Haematological Exam Questions And 100% Correct Answers
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SCN1111 Haematological Exam Questions And 100%Correct Answers
Explain the composition of blood - Answer Blood has 4 major components
Plasma which is 55% mainly water, the remainder of plasma proteins and some other
elements
Formed elements which is 45% this includes RBC, WBC and platelets
Describe the function of plasma - Answer Plasma contains proteins to help the blood
clot
Transports dissolved substances around the body as required - nutrients, hormones
and proteins
eg. transports glucose around the body for use by cells
What are the plasma proteins ANSWER albumin, fibrinogen, globulins
What does albumin do ANSWER Carrier molecule for substances and drugs. Increases
size of molecule so they cannot diffuse across until they get to where they are needed.
Controls passage of water and solute through capillaries therefore maintaining the
critical colloidal osmotic pressure
What is the function of fibrinogen? -Answer Glycoprotein involved in blood coagulation.
Circulated in the blood upon injury, converted into fibrin to help in clotting cascade.
What is globulin used for? -Answer Protein responsible for defense against foreign
invaders.
What is the cellular constituent of blood? -Answer Erythrocytes (RBC), Leukocytes
(WBC), Thromocytes (platelets)
What is the function of erythrocytes - Answ Red blood cells carry oxygen from the lungs
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