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Questions and Answers
What percentage of blood is composed of plasma?
Which component of blood is primarily responsible for transporting oxygen?
What role does blood play in maintaining internal balance in the body?
What is the primary function of leukocytes in the blood?
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What is the function of platelets in the blood?
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Which of the following is NOT a function of blood?
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What percentage of blood is composed of blood cells?
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Which component of blood is primarily responsible for transporting carbon dioxide?
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What is the role of erythrocytes in the blood?
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What role does blood play in regulating temperature?
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Which of the following substances is NOT transported by blood?
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What component of blood assists in clotting during an injury?
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Study Notes
Blood Composition
- Blood is a fluid that circulates throughout the body.
- An adult human body contains approximately 5- 5.5 liters of blood.
- Blood is made up of two main components: plasma (55%) and blood cells (45%).
- Blood cells include erythrocytes (red blood cells), leukocytes (white blood cells), and platelets.
Blood Functions
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Transport:
- Hemoglobin in erythrocytes carries oxygen throughout the body.
- Plasma transports carbon dioxide, nutrients (glucose, amino acids, vitamins), hormones, and waste products.
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Maintaining Balance:
- Blood regulates pH, water levels, and temperature to maintain internal balance.
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Defense:
- Leukocytes defend the body against invading pathogens like viruses, bacteria, and foreign substances.
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Clotting:
- Platelets play a crucial role in blood clotting, preventing excessive blood loss during injury.
Blood Composition
- Blood is a fluid that circulates throughout the body through vessels.
- Adult humans have approximately 5-5.5 liters of blood.
- Blood is composed of plasma (55%) and blood cells (45%).
- Blood cells include erythrocytes (red blood cells), leukocytes (white blood cells), and platelets.
Blood Functions
-
Transport:
- Hemoglobin in erythrocytes transports oxygen.
- Plasma is the main transporter of carbon dioxide.
- Blood transports nutrients like glucose, amino acids, and vitamins from the digestive organs to the body.
- Hormones are transported to target tissues and cells.
- Waste materials are transported to excretory organs.
- Maintaining Balance: Blood helps regulate pH, water, and temperature levels within the body.
- Defense: Leukocytes (white blood cells) fight against invading viruses, bacteria, and other foreign substances.
- Clotting: Platelets are essential for preventing blood loss through clotting.
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Description
Explore the essential components and functions of blood in the human body. This quiz covers aspects such as blood composition, transportation of nutrients and oxygen, maintaining internal balance, and the defense mechanisms of blood. Test your knowledge on how blood plays a vital role in our health!
