Definition |
Human blood consists of two components, namely 55% blood plasma (pale yellow fluid) and 45% blood cells (red blood cells, white blood cells and platelets)
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The structure and function of red blood cells, white blood cells, and platelets:
The chemicals and their functions:
Chemical substance
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Function
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Water
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Water becomes a transport medium and solvent for respiratory gases, ions, digestive products, and excrement
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Nutrients (glucose and vitamins)
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Nutrients are important in energy production, growth, and health maintenance
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Dissolved gas
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Oxygen is used in cellular respiration and carbon dioxide is the result of cellular respiration
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Wastes substances
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Wastes such as urea are transported to the kidneys for elimination
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Enzymes
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Enzymes are needed to speed up biochemical reactions in cells
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Hormones
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Hormones are chemicals that regulate the activity of certain tissues or organs
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The blood group and suitability of blood reception:
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Blood group O is known as the universal donor while blood group AB is known as the universal recipient
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Blood transfusion/blood transfusion should be done according to the appropriate blood class to prevent blood collection to the recipient
The importance of donating blood: