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Questions and Answers
Plasma makes up 55% of blood composition.
True
Red blood cells contain a nucleus and mitochondria when they are mature.
False
White blood cells defend the body from attack.
True
Albumen is a type of plasma protein that maintains the osmotic balance within the organism.
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Red blood cells are produced in the yellow bone marrow.
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Dissolved salts in plasma are essential for the proper functioning of cells.
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Monocytes account for about 7% of all white blood cells.
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Monocytes have a large spherical nucleus.
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Lymphocytes are stored in the circulatory system.
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Platelets are responsible for the production of fibrin in blood clotting.
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Blood group AB has both A and B antigens.
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The Rhesus protein was first discovered in humans.
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Rhesus negative mothers are at risk of complications in subsequent pregnancies with Rhesus positive babies.
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The Rhesus antibodies given to the mother after the first Rhesus positive baby prevent the build-up of anti-Rhesus antibodies in her blood.
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Exercise does not have any effect on pulse rate.
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