Blood And Its Components

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Blood And Its Components - Quiz

Blood is a specialized body fluid whose major function is to supply oxygen to the cells and tissues and remove carbon dioxide, transport hormones and regulate body temperatures. Just how much do you know about blood and its components? Take the comprehensive test below in preparation for the exam and find out!


Questions and Answers
  • 1. 

    The process of platelet production by the bone marrow

    • A.

      Plasma

    • B.

      Thrombopoiesis

    • C.

      Hemopoiesia

    • D.

      Erythropoiesis

    Correct Answer
    B. Thrombopoiesis
    Explanation
    Thrombopoiesis is the process of platelet production by the bone marrow. Platelets are small cell fragments that play a crucial role in blood clotting. The bone marrow produces platelets from large cells called megakaryocytes. These megakaryocytes undergo fragmentation, releasing numerous platelets into the bloodstream. Thrombopoiesis is regulated by a hormone called thrombopoietin, which stimulates the production and maturation of megakaryocytes. This process ensures an adequate supply of platelets in the blood to maintain proper clotting and hemostasis.

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  • 2. 

    Blood test that indicates the percentage of blood cells in a sample of blood; assumed to be the percentage of red blood cells (RBCs) 

    • A.

      BONE MARROW BIOPSY

    • B.

      HEMATOCRIT(HCT)

    • C.

      INTRINSIC FACTOR

    Correct Answer
    B. HEMATOCRIT(HCT)
    Explanation
    Hematocrit (HCT) is a blood test that measures the percentage of blood cells in a sample of blood, specifically the percentage of red blood cells (RBCs). This test is used to evaluate the overall health and oxygen-carrying capacity of the blood. A low hematocrit may indicate anemia or blood loss, while a high hematocrit may suggest dehydration or conditions such as polycythemia. Therefore, HCT is the correct answer as it aligns with the given description of the blood test.

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  • 3. 

    COMPONENT OF THE RED BLOOD CELL TO WHICH THE OXYGEN IS ATTACHED

    • A.

      HEMOGLOBIN

    • B.

      PLASMA

    • C.

      BLAST CELL

    Correct Answer
    A. HEMOGLOBIN
    Explanation
    Hemoglobin is the correct answer because it is the component of the red blood cell to which oxygen is attached. Hemoglobin is a protein found in red blood cells that binds to oxygen in the lungs and carries it to the body's tissues. It has a high affinity for oxygen, allowing it to efficiently transport oxygen throughout the body. Plasma and blast cell are not directly involved in the attachment of oxygen to red blood cells.

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  • 4. 

    PROTEIN SECRETED BY THE STOMACH THAT IS NECESSARY FOR THE ABSORPTION OF VITAMIN B12

    • A.

      ERYTHROPOIETIN

    • B.

      INTRINSIC FACTOR

    • C.

      HEMOPOIESIS

    Correct Answer
    B. INTRINSIC FACTOR
    Explanation
    Intrinsic factor is a protein secreted by the stomach that is necessary for the absorption of vitamin B12. Vitamin B12 is an essential nutrient for the body, particularly for the production of red blood cells and the proper functioning of the nervous system. Intrinsic factor binds to vitamin B12 in the stomach and helps it to be absorbed in the small intestine. Without intrinsic factor, the body would not be able to effectively absorb vitamin B12, leading to a deficiency and potential health problems.

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  • 5. 

    PROCESS OF WHITE BLOOD CELL (WBC) PRODUCTION

    • A.

      HEMOGLOBIN

    • B.

      LEUKOPOIESIS

    • C.

      ERYTHROPOIESIS

    Correct Answer
    B. LEUKOPOIESIS
    Explanation
    Leukopoiesis refers to the process of white blood cell (WBC) production. It involves the formation and maturation of various types of white blood cells, such as neutrophils, lymphocytes, and monocytes, in the bone marrow. These cells play a crucial role in the immune system, defending the body against infections and diseases. Leukopoiesis is regulated by various factors, including cytokines and growth factors, which stimulate the production and differentiation of white blood cells. This process is essential for maintaining a healthy immune system and protecting the body from harmful pathogens.

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  • 6. 

    BLOOD TEST THAT INDICATES THE PERCENTAGE OF EACH TYPE OF WHITE BLOOD CELL IN A SAMPLE OF BLOOD

    • A.

      BONE MARROW BIOPSY

    • B.

      DIFFERENTIAL COUNT

    • C.

      HEMATOLOGY

    Correct Answer
    B. DIFFERENTIAL COUNT
    Explanation
    A differential count is a blood test that indicates the percentage of each type of white blood cell in a sample of blood. This test is commonly used in hematology to diagnose and monitor various conditions such as infections, autoimmune disorders, and leukemia. It provides valuable information about the immune system and can help healthcare professionals determine the underlying cause of a patient's symptoms. A bone marrow biopsy, on the other hand, involves taking a sample of bone marrow to examine the cells and is not specifically used to determine the percentage of each type of white blood cell. Hematology is the branch of medicine that deals with the study of blood and blood disorders.

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  • 7. 

    PROCESS OF RBC PRODUCTION BY THE BONE MARROW

    • A.

      THROMBOPOIESIS

    • B.

      ERYTHROPOIESIS

    • C.

      LEUKOPOIESIS

    Correct Answer
    B. ERYTHROPOIESIS
    Explanation
    Erythropoiesis is the process of red blood cell (RBC) production by the bone marrow. During erythropoiesis, hematopoietic stem cells in the bone marrow differentiate and mature into red blood cells. This process involves the synthesis of hemoglobin, the protein responsible for carrying oxygen, and the development of a biconcave shape in the RBCs to increase their surface area for oxygen exchange. Erythropoiesis is regulated by the hormone erythropoietin, which is produced by the kidneys in response to low oxygen levels in the body.

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  • 8. 

    HORMONE THAT STIMULATES THE PRODUCTION OF RBC'S

    • A.

      HEMOGLOBIN

    • B.

      ERYTHROPOIETIN

    • C.

      PLASMA

    Correct Answer
    B. ERYTHROPOIETIN
    Explanation
    Erythropoietin is a hormone that stimulates the production of red blood cells (RBCs) in the body. It is produced by the kidneys in response to low oxygen levels in the blood. Erythropoietin travels to the bone marrow and binds to receptors on the surface of stem cells, which then differentiate into RBCs. This hormone plays a crucial role in maintaining the balance of RBC production and is essential for the body's oxygen-carrying capacity. Hemoglobin is the protein found in RBCs that binds to oxygen, while plasma is the liquid component of blood that carries various substances.

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  • 9. 

    Liquid portion of the blood Liquid portion of the blood

    • A.

      HEMOGLOBIN

    • B.

      PLASMA

    • C.

      ERYTHROCYTES

    Correct Answer
    B. PLASMA
    Explanation
    Plasma is the correct answer because it is the liquid portion of the blood. It makes up about 55% of the total blood volume and is responsible for transporting various substances, such as nutrients, hormones, and waste products, throughout the body. Plasma also plays a crucial role in maintaining blood pressure and regulating body temperature.

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  • 10. 

    A sample of developing blood cells is withdrawn from the sternum or iliac crest; this procedure can detect abnormal blood cells. 

    • A.

      DIFFERENTIAL COUNT

    • B.

      ERYTHROPOIETIN

    • C.

      BONE MARROW BIOPSY

    Correct Answer
    C. BONE MARROW BIOPSY
    Explanation
    A bone marrow biopsy is a procedure in which a sample of developing blood cells is taken from the sternum or iliac crest. This procedure is commonly used to detect abnormal blood cells. It involves inserting a needle into the bone marrow and withdrawing a small sample of cells for analysis. This test can provide valuable information about the health and functioning of the bone marrow, including any abnormalities or diseases affecting the production of blood cells.

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  • 11. 

    Part of the blood that contains the gamma globulins, fibrinogen, and albumin 

    • A.

      PLASMA

    • B.

      BLAST CELL

    • C.

      LEUKOCYTES

    Correct Answer
    A. PLASMA
    Explanation
    Plasma is the correct answer because it is the part of the blood that contains gamma globulins, fibrinogen, and albumin. Gamma globulins are a type of antibody that helps to fight off infections, fibrinogen is a protein involved in blood clotting, and albumin helps to regulate blood pressure and transport nutrients. Therefore, plasma is the correct answer as it is the fluid component of blood that carries these important substances.

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  • 12. 

    An immature cell

    • A.

      THROMBOCYTES

    • B.

      BLAST CELL

    • C.

      ERYTHROCYTES

    Correct Answer
    B. BLAST CELL
    Explanation
    A blast cell is an immature cell that is found in the bone marrow. These cells are precursors to mature blood cells and undergo further development and maturation before becoming functional. In this context, thrombocytes and erythrocytes are mature blood cells, while a blast cell is still in the early stages of development. Therefore, the correct answer is blast cell.

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  • 13. 

    Tissue that makes blood cells

    • A.

      BLAST CELL

    • B.

      BONE MARROW

    • C.

      PLASMA

    Correct Answer
    B. BONE MARROW
    Explanation
    The tissue that is responsible for producing blood cells is called bone marrow. Bone marrow is a soft, spongy tissue found inside the bones. It contains stem cells that can differentiate into various types of blood cells, including red blood cells, white blood cells, and platelets. These blood cells are vital for carrying oxygen, fighting infections, and clotting blood. Therefore, bone marrow is essential for the production and maintenance of a healthy blood supply in the body.

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  • 14. 

    Tissue that is impaired in myelosuppression

    • A.

      BONE MARROW

    • B.

      HEMOPOIESIS

    • C.

      PLASMA

    Correct Answer
    A. BONE MARROW
    Explanation
    The tissue that is impaired in myelosuppression is the bone marrow. Myelosuppression refers to a decrease in the production of blood cells, including red blood cells, white blood cells, and platelets. The bone marrow is responsible for the production of these blood cells through a process called hematopoiesis. When the bone marrow is impaired, it leads to a decrease in the production of blood cells, which can result in anemia, increased susceptibility to infections, and bleeding disorders.

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  • 15. 

    The study of blood

    • A.

      HEMATOLOGY

    • B.

      HEMOPOIESIS

    • C.

      BONE MARROW BIOPSY

    Correct Answer
    A. HEMATOLOGY
    Explanation
    Hematology is the study of blood, including its composition, functions, and diseases. It involves examining blood cells, blood clotting mechanisms, and blood-related disorders. This field of study helps in diagnosing and treating various blood disorders such as anemia, leukemia, and hemophilia. Hematology also involves analyzing blood samples for abnormalities, conducting blood transfusions, and studying the effects of drugs on blood cells. Therefore, Hematology is the correct answer as it specifically relates to the study of blood.

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  • 16. 

    Platelets

    • A.

      ERYTHROCYTES

    • B.

      LEUKOCYTES

    • C.

      THROMBOCYTES

    Correct Answer
    C. THROMBOCYTES
    Explanation
    Thrombocytes, also known as platelets, are small cells in the blood that help with blood clotting. They are responsible for forming a plug at the site of a damaged blood vessel to prevent excessive bleeding. Erythrocytes, or red blood cells, are responsible for carrying oxygen to the body's tissues. Leukocytes, or white blood cells, are part of the immune system and help to fight off infections. Therefore, the correct answer for this question is thrombocytes because they are the cells specifically involved in blood clotting.

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  • 17. 

    Small, highly phagocytic granulocyte

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    A. WBC
    Explanation
    A small, highly phagocytic granulocyte is a type of white blood cell (WBC). White blood cells are an essential part of the immune system and are responsible for protecting the body against infections and diseases. This specific type of white blood cell is characterized by its ability to engulf and destroy pathogens through a process called phagocytosis. It plays a crucial role in the body's defense mechanism by identifying and eliminating harmful substances.

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  • 18. 

    Antigens A and B

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    The correct answer is RBC. The presence of antigens A and B on red blood cells (RBCs) is a characteristic of the ABO blood group system. These antigens determine an individual's blood type. White blood cells (WBCs) are responsible for immune responses and fighting infections, but they do not have antigens A and B. Platelets (P) are involved in blood clotting and also do not have antigens A and B. Therefore, the only component listed that has antigens A and B is RBCs.

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  • 19. 

    Delivers oxygen to the cells in the body

    • A.

      P

    • B.

      RBC

    • C.

      WBC

    Correct Answer
    B. RBC
    Explanation
    Red blood cells (RBCs) are responsible for delivering oxygen to the cells in the body. They contain a protein called hemoglobin, which binds with oxygen in the lungs and carries it to the tissues and organs. RBCs are specialized cells that lack a nucleus and other organelles, allowing them to have more space to carry oxygen. This function of RBCs is crucial for the body's overall functioning and survival.

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  • 20. 

    A deficiency causes petechiae formation and bleeding

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    C. P
    Explanation
    A deficiency in P, which stands for platelets, causes petechiae formation and bleeding. Platelets are responsible for blood clotting, and when there is a deficiency in platelets, the blood is unable to clot properly. This leads to the formation of petechiae, which are small red or purple spots on the skin caused by bleeding under the skin. Additionally, the lack of platelets can result in excessive bleeding from minor cuts or injuries.

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  • 21. 

    Life span is about 120 days

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
  • 22. 

    Breaks down into protein, bilirubin, and iron

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    RBCs, or red blood cells, are responsible for carrying oxygen to the body's tissues. When they break down, they release protein, bilirubin, and iron. Protein is important for various bodily functions, bilirubin is a waste product that is processed by the liver, and iron is essential for the production of new RBCs. Therefore, the correct answer is RBC.

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  • 23. 

    Includes lymphocytes and monocytes

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    A. WBC
    Explanation
    The given answer, WBC, is correct because white blood cells (WBCs) are the only type of blood cells that include lymphocytes and monocytes. WBCs are responsible for the body's immune response and help fight off infections. They are produced in the bone marrow and are an essential part of the body's defense system. Unlike red blood cells (RBCs) which carry oxygen, WBCs play a crucial role in protecting the body against pathogens and foreign substances. The information provided in the question suggests that only WBCs include lymphocytes and monocytes, making it the correct answer.

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  • 24. 

    Includes neutrophils, basophils, and eosinophils

    • A.

      RBC

    • B.

      WBC

    • C.

      P

    Correct Answer
    B. WBC
    Explanation
    The correct answer is WBC because it refers to white blood cells, which include neutrophils, basophils, and eosinophils. White blood cells are an essential part of the immune system and play a crucial role in defending the body against infections and diseases. They help to identify and destroy pathogens, produce antibodies, and regulate the immune response. Unlike red blood cells (RBC), which are responsible for carrying oxygen throughout the body, white blood cells are primarily involved in the immune response.

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  • 25. 

    Is filled primarily with hemoglobin

    • A.

      RBC

    • B.

      WBC

    • C.

      P

    Correct Answer
    A. RBC
    Explanation
    Red blood cells (RBCs) are primarily filled with hemoglobin, which is a protein responsible for carrying oxygen to the body's tissues. Hemoglobin gives RBCs their characteristic red color and allows them to efficiently transport oxygen throughout the body. Unlike white blood cells (WBCs) and platelets (P), RBCs do not have a nucleus or other organelles, allowing them to have more space to carry hemoglobin. Therefore, the correct answer is RBC.

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  • 26. 

    The immature cell is the reticulocyte

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    The correct answer is RBC because reticulocytes are immature red blood cells. They are produced in the bone marrow and eventually develop into mature red blood cells. RBCs are responsible for carrying oxygen to the body's tissues and removing carbon dioxide.

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  • 27. 

    Derived from the megakaryocyte

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    C. P
  • 28. 

    Is concerned primarily with phagocytosis

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    A. WBC
    Explanation
    The correct answer is WBC because white blood cells are primarily responsible for phagocytosis, which is the process of engulfing and destroying harmful pathogens or foreign particles in the body. Red blood cells (RBC) are responsible for carrying oxygen to the body's tissues, while platelets (P) are involved in blood clotting.

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  • 29. 

    Is composed of granulocytes and agranulocytes

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    A. WBC
    Explanation
    The correct answer is WBC because white blood cells, or leukocytes, are composed of both granulocytes and agranulocytes. Granulocytes are a type of white blood cell that contain granules in their cytoplasm, while agranulocytes do not have these granules. Therefore, white blood cells consist of both types of cells, making them the correct answer.

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  • 30. 

    Leukocytosis and leukopenia

    • A.

      RBC

    • B.

      WBC

    • C.

      P

    Correct Answer
    B. WBC
    Explanation
    The correct answer is WBC because leukocytosis and leukopenia are both conditions that affect the white blood cells (WBCs) in the body. Leukocytosis refers to an increase in the number of WBCs, while leukopenia refers to a decrease in the number of WBCs. RBC, on the other hand, stands for red blood cells and is not related to the conditions mentioned. The letter "P" is not clear in its context and does not provide any relevant information.

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  • 31. 

    Its rapid breakdown causes hyperbilirubinemia 

    • A.

      RBC

    • B.

      WBC

    • C.

      P

    Correct Answer
    A. RBC
    Explanation
    RBCs, or red blood cells, are responsible for carrying oxygen to the body's tissues and removing carbon dioxide. When RBCs break down rapidly, it can lead to an increase in the production of bilirubin, a yellow pigment that is a byproduct of the breakdown of hemoglobin in RBCs. This excess bilirubin can accumulate in the bloodstream, causing hyperbilirubinemia, which is characterized by yellowing of the skin and eyes (jaundice). Therefore, the correct answer is RBC.

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  • 32. 

    Is decreased in anemia

    • A.

      RBC

    • B.

      WBC

    • C.

      P

    Correct Answer
    A. RBC
    Explanation
    Anemia is a condition characterized by a decrease in the number of red blood cells (RBC) or a decrease in the amount of hemoglobin in the blood. This decrease in RBC leads to a reduced ability of the blood to carry oxygen to the body's tissues, resulting in symptoms such as fatigue, weakness, and shortness of breath. Therefore, it is correct to say that the number of RBC is decreased in anemia.

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  • 33. 

    Primarily concerned with hemostasis

    • A.

      P

    • B.

      WBC

    • C.

      RBC

    Correct Answer
    A. P
    Explanation
    The answer "P" is correct because the question states that the topic is primarily concerned with hemostasis. Hemostasis refers to the process of stopping bleeding, which is primarily regulated by platelets (P). While white blood cells (WBC) and red blood cells (RBC) play important roles in the immune system and oxygen transportation respectively, they are not the primary focus when it comes to hemostasis.

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  • 34. 

    Synthesized in response to erythropoietin

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    Erythropoietin is a hormone produced by the kidneys that stimulates the production of red blood cells (RBCs) in the bone marrow. This hormone acts as a signal to increase the production and maturation of RBCs, which are responsible for carrying oxygen to different parts of the body. Therefore, it can be inferred that the given phrase "Synthesized in response to erythropoietin" refers to the synthesis of RBCs in response to the presence of erythropoietin hormone.

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  • 35. 

    Thrombocytopenia and bleeding

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    C. P
  • 36. 

    Granulocytopenia and infection

    • A.

      RBC

    • B.

      WBC

    • C.

      P

    Correct Answer
    B. WBC
    Explanation
    Granulocytopenia refers to a decrease in the number of granulocytes, a type of white blood cell (WBC) that plays a crucial role in fighting off infections. Infection is a common complication of granulocytopenia because the body's immune system is weakened, making it more susceptible to bacterial and fungal infections. Therefore, the correct answer is WBC, as it directly relates to the condition of granulocytopenia and its association with infection.

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  • 37. 

    Contributes to the formation of pus

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    A. WBC
    Explanation
    White blood cells (WBC) play a crucial role in the immune response of the body. When there is an infection or injury, WBCs are recruited to the site to fight off pathogens and remove dead cells. They release chemicals that attract other immune cells and help in the process of phagocytosis, where they engulf and destroy the invading microorganisms. This immune response can lead to the accumulation of dead WBCs, bacteria, and tissue debris, resulting in the formation of pus. Therefore, WBCs contribute to the formation of pus.

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  • 38. 

    The Rh factor

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
  • 39. 

    Its rapid breakdown causes jaundice

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    RBCs, or red blood cells, are responsible for carrying oxygen throughout the body. When they break down rapidly, it can lead to the release of bilirubin, a yellow pigment. This excess bilirubin can accumulate in the body, leading to jaundice, a condition characterized by yellowing of the skin and eyes. Therefore, the rapid breakdown of RBCs can cause jaundice.

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  • 40. 

    Shift to the left

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    A. WBC
    Explanation
    The correct answer is WBC because the given phrase "Shift to the left" is a term used in medical terminology to describe an increase in the number of immature white blood cells (WBC) in a blood sample. This condition is often associated with infections or other inflammatory processes. Therefore, the answer WBC is the most appropriate choice based on the given information.

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  • 41. 

    Plasma levels are monitored through changes in the HCT.

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    The statement suggests that plasma levels can be monitored by observing changes in the HCT (hematocrit). Hematocrit is a measure of the percentage of red blood cells (RBCs) in the blood. By monitoring changes in the RBC count, one can indirectly assess the plasma levels. This is because RBCs are a major component of the blood and any changes in their levels can reflect alterations in plasma composition. Therefore, the answer RBC is correct as it aligns with the given explanation.

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  • 42. 

    Involved in a hemolytic blood transfusion reaction

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    The correct answer is RBC because hemolytic blood transfusion reaction involves the destruction of red blood cells (RBCs). This type of reaction occurs when the recipient's immune system recognizes the transfused RBCs as foreign and attacks them, causing their destruction. This can lead to various symptoms such as fever, chills, low blood pressure, and kidney damage. White blood cells (WBCs) and platelets (P) are not directly involved in this type of reaction.

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  • 43. 

    Intrinsic and extrinsic factors are necessary for its synthesis

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    RBCs, or red blood cells, require both intrinsic and extrinsic factors for their synthesis. Intrinsic factors refer to the internal processes within the body that are necessary for RBC production, such as the proper functioning of bone marrow and the presence of specific nutrients like iron and vitamin B12. Extrinsic factors, on the other hand, are external factors that influence RBC synthesis, such as the hormone erythropoietin, which is produced by the kidneys in response to low oxygen levels. Therefore, both intrinsic and extrinsic factors are essential for the production of RBCs.

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  • 44. 

    Requires iron for its synthesis and function

    • A.

      WBC

    • B.

      RBC

    • C.

      P

    Correct Answer
    B. RBC
    Explanation
    RBCs, or red blood cells, require iron for their synthesis and function. Iron is an essential component of hemoglobin, a protein in RBCs that binds to oxygen and transports it throughout the body. Without sufficient iron, RBC production and oxygen-carrying capacity would be compromised, leading to anemia and other health issues. Therefore, the correct answer is RBC.

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  • 45. 

    Segs, polys, PMNs, band cells

    • A.

      RBC

    • B.

      WBC

    • C.

      P

    Correct Answer
    B. WBC
    Explanation
    The given answer "WBC" is correct because "WBC" stands for white blood cells, which includes various types such as segs (segmented neutrophils), polys (polymorphonuclear leukocytes), PMNs (polymorphonuclear cells), and band cells. These are all types of white blood cells that are involved in the body's immune response and defense against infections. On the other hand, RBC stands for red blood cells, which are responsible for carrying oxygen to the body's tissues. The given options indicate different components of blood, and "WBC" is the correct answer as it represents the white blood cells.

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  • 46. 

    Stoppage of bleeding

    • A.

      EMBOLUS

    • B.

      HEMOSTASIS

    • C.

      CALCIUM

    Correct Answer
    B. HEMOSTASIS
    Explanation
    Hemostasis refers to the body's natural process of stopping bleeding. It involves the formation of a blood clot to seal off the damaged blood vessel and prevent further blood loss. This process is essential for maintaining the integrity of the circulatory system and preventing excessive bleeding. Hemostasis can be achieved through several mechanisms, including vasoconstriction, platelet aggregation, and the formation of fibrin strands to create a stable clot. Therefore, hemostasis is the correct answer because it directly relates to the stoppage of bleeding.

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  • 47. 

    A blood clot

    • A.

      HEPARIN

    • B.

      THROMBUS

    • C.

      EMBOLUS

    Correct Answer
    B. THROMBUS
    Explanation
    A thrombus is a blood clot that forms within a blood vessel, typically due to a combination of blood flow abnormalities and hypercoagulability. It can partially or completely block the blood flow in the affected vessel. Heparin is a medication that is commonly used to prevent and treat blood clots. An embolus, on the other hand, is a clot or other foreign material that travels through the bloodstream and lodges in a blood vessel, causing a blockage. Therefore, the correct answer in this case is thrombus, as it specifically refers to a blood clot that forms within a blood vessel.

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  • 48. 

    Drug that decreases the formation of prothrombin in the liver

    • A.

      CALCIUM

    • B.

      COUMADIN

    • C.

      HEPARIN

    Correct Answer
    B. COUMADIN
    Explanation
    Coumadin is the correct answer because it is a medication that belongs to the class of anticoagulants or blood thinners. It works by inhibiting the formation of prothrombin, which is a protein involved in blood clotting, in the liver. By decreasing the formation of prothrombin, Coumadin helps to prevent the formation of blood clots and reduce the risk of strokes, heart attacks, and other blood clot-related conditions. Calcium and Heparin are not known to have this specific effect on prothrombin formation in the liver.

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  • 49. 

    A traveling or moving blood clot

    • A.

      THROMBIN

    • B.

      EMBOLUS

    • C.

      THROMBOLYTICS

    Correct Answer
    B. EMBOLUS
    Explanation
    An embolus is a traveling or moving blood clot that can block blood vessels and cause serious complications. It is formed when a blood clot, called a thrombus, breaks away from its original site and travels through the bloodstream to another location. This can lead to the obstruction of blood flow, potentially causing tissue damage or even organ failure. Thrombin is an enzyme involved in the clotting process, while thrombolytics are medications used to dissolve blood clots. However, neither of these options specifically refers to a traveling or moving blood clot, making embolus the correct answer.

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  • 50. 

    Causes hypoprothrombinemia

    • A.

      HEPARIN

    • B.

      COUMADIN

    • C.

      HEMOLYSIS

    Correct Answer
    B. COUMADIN
    Explanation
    COUMADIN is a medication that belongs to the class of anticoagulants and is commonly used to prevent blood clots. One of the known side effects of COUMADIN is hypoprothrombinemia, which refers to a decreased level of prothrombin in the blood. Prothrombin is a protein that plays a crucial role in blood clotting. COUMADIN works by inhibiting the production of certain clotting factors, including prothrombin, leading to a decreased ability of the blood to clot. Therefore, the use of COUMADIN can cause hypoprothrombinemia.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 14, 2011
    Quiz Created by
    TamaraBrown
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