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Questions and Answers
Approximately what percentage of body weight does blood make up in a 70 kg man? (Select one)
Approximately what percentage of body weight does blood make up in a 70 kg man? (Select one)
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The defense function of blood is primarily mediated by: (Select one)
The defense function of blood is primarily mediated by: (Select one)
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The process of blood clotting is known as: (Select one)
The process of blood clotting is known as: (Select one)
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The blood's ability to maintain a constant internal environment is known as: (Select one)
The blood's ability to maintain a constant internal environment is known as: (Select one)
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Which of the following is NOT a major function of blood? (Select one)
Which of the following is NOT a major function of blood? (Select one)
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What are the two main components of blood? (Select one)
What are the two main components of blood? (Select one)
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What percentage of plasma is made up of water? (Select one)
What percentage of plasma is made up of water? (Select one)
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Plasma proteins constitute what percentage of the total plasma? (Select one)
Plasma proteins constitute what percentage of the total plasma? (Select one)
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Which of the following is NOT an inorganic component of plasma? (Select one)
Which of the following is NOT an inorganic component of plasma? (Select one)
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The fluid part of blood, also known as plasma, makes up what percentage of total blood volume? (Select one)
The fluid part of blood, also known as plasma, makes up what percentage of total blood volume? (Select one)
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What percentage of blood is made up of cells, including RBCs, WBCs, and platelets? (Select one)
What percentage of blood is made up of cells, including RBCs, WBCs, and platelets? (Select one)
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Which plasma protein is the most abundant in the blood? (Select one)
Which plasma protein is the most abundant in the blood? (Select one)
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What is the approximate molecular weight of globulins? (Select one)
What is the approximate molecular weight of globulins? (Select one)
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What is the approximate molecular weight of fibrinogen? (Select one)
What is the approximate molecular weight of fibrinogen? (Select one)
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Which organ is primarily responsible for synthesizing most plasma proteins, including albumin and fibrinogen? (Select one)
Which organ is primarily responsible for synthesizing most plasma proteins, including albumin and fibrinogen? (Select one)
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Gamma globulins, which are involved in immune responses, are primarily synthesized in which of the following tissues? (Select one)
Gamma globulins, which are involved in immune responses, are primarily synthesized in which of the following tissues? (Select one)
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Plasma proteins, including albumin, are in a constant state of: (Select one)
Plasma proteins, including albumin, are in a constant state of: (Select one)
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During starvation, which source is primarily used by the body for plasma protein synthesis? (Select one)
During starvation, which source is primarily used by the body for plasma protein synthesis? (Select one)
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When there is an acute loss of plasma proteins, such as during hemorrhage, which reserve is quickly mobilized? (Select one)
When there is an acute loss of plasma proteins, such as during hemorrhage, which reserve is quickly mobilized? (Select one)
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What is the role of plant proteins in plasma protein synthesis? (Select one)
What is the role of plant proteins in plasma protein synthesis? (Select one)
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What percentage of plasma proteins such as alpha and beta globulins are synthesized by the liver? (Select one)
What percentage of plasma proteins such as alpha and beta globulins are synthesized by the liver? (Select one)
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What process replaces the albumin that is degraded in the body by tissue macrophages? (Select one)
What process replaces the albumin that is degraded in the body by tissue macrophages? (Select one)
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The albumin/globulin (A/G) ratio is defined as: (Select one)
The albumin/globulin (A/G) ratio is defined as: (Select one)
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Which of the following values falls within the normal range for the A/G ratio in healthy individuals? (Select one)
Which of the following values falls within the normal range for the A/G ratio in healthy individuals? (Select one)
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In which of the following conditions would you expect the A/G ratio to be decreased due to a significant loss of albumin? (Select one)
In which of the following conditions would you expect the A/G ratio to be decreased due to a significant loss of albumin? (Select one)
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Study Notes
Blood Definition and Function
- Blood accounts for approximately 8% of body weight in a 70 kg man.
- The defense function of blood is primarily mediated by white blood cells.
- Blood clotting is known as hemostasis.
- The ability of blood to maintain a constant internal environment is referred to as homeostasis.
- All listed options (transport of nutrients, regulation of body temperature, maintenance of pH balance) are major functions of blood.
Blood Components
- The two main components of blood are cells and plasma.
- Water makes up about 90% of plasma.
- Plasma proteins constitute approximately 7% of total plasma.
- Urea is NOT an inorganic component of plasma; it is an organic component.
- Plasma consists of about 55% of total blood volume.
- Cells, including RBCs, WBCs, and platelets, make up about 45% of blood.
Plasma Proteins
- Albumin is the most abundant plasma protein in the blood.
- The molecular weight of globulins ranges from 90,000 to 150,000.
- Fibrinogen has an approximate molecular weight of 340,000.
- The liver is primarily responsible for synthesizing most plasma proteins, including albumin and fibrinogen.
- Gamma globulins, important for immune responses, are mainly synthesized in lymphoid tissues.
- Plasma proteins, including albumin, are constantly undergoing breakdown and resynthesis.
- During starvation, tissue proteins are primarily used for plasma protein synthesis.
- In cases of acute loss of plasma proteins, labile reserve proteins from the liver are quickly mobilized.
- Plant proteins function as a source for tissue proteins in plasma protein synthesis.
- The liver synthesizes 80-100% of plasma proteins such as alpha and beta globulins.
- Hepatic synthesis replaces degraded albumin at a rate of 200-400 mg/kg/day.
Albumin/Globulin (A/G) Ratio
- The A/G ratio is defined as the ratio of albumin to globulin concentrations in plasma.
- A normal A/G ratio for healthy individuals typically falls around 1.4.
- Conditions such as advanced liver disease would expect a decreased A/G ratio due to significant loss of albumin.
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Description
Explore the essential functions and components of blood in this informative quiz. Discover the roles of red and white blood cells, plasma, and the importance of blood in maintaining homeostasis and body temperature. Test your knowledge on blood composition and plasma proteins.
