Parts Of The Blood
Exam on the parts of the blood
Questions and Answers
- 1.
Adults have about _____ liters or quarts of blood.
Explanation
The correct answer is 5 or five. Adults have approximately 5 liters or quarts of blood in their bodies.Rate this question:
- 2.
Children have about _____ liters or quarts of blood.
Explanation
Children have approximately three liters or quarts of blood.Rate this question:
- 3.
White blood cells often die in combat against the body’s invaders and the collection of white blood cells and dead bugs form _____.
Explanation
When white blood cells fight against foreign invaders in the body, they can die in the process. The collection of these dead white blood cells and the dead pathogens form a thick, yellowish fluid called pus. Pus is typically seen as a sign of infection and is often accompanied by inflammation and swelling. It is the body's way of containing and getting rid of the infection.Rate this question:
- 4.
_________ eat and digest invading bugs.
Explanation
Monocytes are a type of white blood cell that plays a crucial role in the immune system's defense against invading pathogens. They are responsible for engulfing and digesting foreign substances, including invading bugs or pathogens. Monocytes are part of the body's innate immune response and are able to recognize and eliminate these pathogens through a process called phagocytosis. Thus, the statement "Monocytes eat and digest invading bugs" accurately describes the role of monocytes in the immune system.Rate this question:
- 5.
Neutrophil is the most common white blood cell.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Neutrophils are the most common type of white blood cells in the human body. They play a crucial role in the immune system by defending against bacterial and fungal infections. Neutrophils are highly mobile and are the first responders to sites of infection or tissue damage. They are capable of engulfing and destroying pathogens through a process called phagocytosis. Due to their abundance and importance in the immune response, it is accurate to say that neutrophils are the most common white blood cell.Rate this question:
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- 6.
Plasma is also known as ________.
Correct Answer
serumExplanation
Plasma is the liquid component of blood that contains various proteins, electrolytes, hormones, and waste products. Serum, on the other hand, is the liquid component of blood that remains after the blood has clotted and the clot has been removed. Since serum is derived from plasma, it can be considered as an alternative name for plasma.Rate this question:
- 7.
_________ kill bacteria and viruses directly.
Correct Answer
LymphocytesExplanation
Lymphocytes are a type of white blood cell that play a crucial role in the immune system. They are responsible for recognizing and attacking foreign invaders such as bacteria and viruses. Lymphocytes can directly kill these pathogens by releasing toxic substances or by engulfing them through a process called phagocytosis. This ability to directly kill bacteria and viruses makes lymphocytes an essential component of the body's defense against infections.Rate this question:
- 8.
Red blood cells are also called __________.
Correct Answer
erythrocytesExplanation
Red blood cells are called erythrocytes. This is because erythrocytes are the specific type of blood cells that are responsible for transporting oxygen throughout the body. They are red in color due to the presence of a protein called hemoglobin, which binds to oxygen and carries it to the body's tissues. The term "erythrocytes" is derived from the Greek words "erythros" meaning red, and "kytos" meaning cell. Therefore, erythrocytes are commonly referred to as red blood cells.Rate this question:
- 9.
_________is the molecule that pulls oxygen into the cells and pushes it out of the body tissue.
Correct Answer
Hemoglobiin
HaemoglobinExplanation
Hemoglobin is the molecule that pulls oxygen into the cells and pushes it out of the body tissue. Hemoglobin is found in red blood cells and is responsible for transporting oxygen from the lungs to the rest of the body. It binds to oxygen in the lungs and releases it to the tissues that need it. Hemoglobin also helps to remove carbon dioxide, a waste product, from the tissues and transports it back to the lungs to be exhaled.Rate this question:
- 10.
Red blood cells carry oxygen from the ______ to the rest of the body.
- A.
Heart
- B.
Brain
- C.
Lungs
- D.
All of the above
Correct Answer
C. LungsExplanation
Red blood cells carry oxygen from the lungs to the rest of the body. They pick up oxygen in the lungs during inhalation and transport it to all the cells in the body. The oxygen binds to a molecule called hemoglobin in the red blood cells, allowing it to be transported efficiently through the bloodstream. This oxygen is then released to the tissues and organs, providing them with the necessary oxygen for their proper functioning.Rate this question:
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- 11.
The body contains about ____ billion red blood cells.
Correct Answer
25
twenty-five
twenty fiveExplanation
The body contains approximately 25 billion red blood cells.Rate this question:
- 12.
_______ are the tiniest cells in the body.
Correct Answer
PlateletsExplanation
Platelets are the tiniest cells in the body. They are small, irregularly shaped cells that are involved in blood clotting. Platelets are produced in the bone marrow and circulate in the bloodstream. When there is an injury or damage to blood vessels, platelets adhere to the site and form a plug to stop bleeding. They also release chemicals that help in the formation of a blood clot. Due to their small size, platelets are able to easily move through narrow blood vessels and reach the site of injury quickly.Rate this question:
- 13.
One milliliter of blood contains about ____ million platelets
- A.
100
- B.
250
- C.
500
Correct Answer
B. 250Explanation
One milliliter of blood contains about 250 million platelets. This is a scientific fact and represents the average number of platelets found in a small volume of blood. Platelets are important for blood clotting and help to prevent excessive bleeding. The high number of platelets in the blood ensures that there are enough available to respond to any injury or damage to blood vessels.Rate this question:
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- 14.
Platelets form blood clots by clumping together and plugging any bleeding wound
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Platelets are small, irregularly shaped cell fragments in the blood that play a crucial role in the formation of blood clots. When there is a bleeding wound, platelets adhere to the damaged blood vessel walls and clump together to form a plug, which helps to stop the bleeding. This process is known as platelet aggregation. Therefore, the statement "Platelets form blood clots by clumping together and plugging any bleeding wound" is true.Rate this question:
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- 15.
Red blood cells destroy bacteria and viruses in the blood.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Red blood cells do not have the ability to destroy bacteria and viruses in the blood. They primarily function to transport oxygen to the body's tissues. The immune system, specifically white blood cells, is responsible for fighting off infections caused by bacteria and viruses. Therefore, the statement is false.Rate this question:
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- 16.
A newborn baby has about ______ milliliters or half a pint of blood.
Correct Answer
250
two hundred and fiftyExplanation
A newborn baby has approximately 250 milliliters or two hundred and fifty milliliters of blood.Rate this question:
- 17.
red blood cells live approximately ______ days.
Correct Answer
120
one hundred and twentyExplanation
Red blood cells have a lifespan of approximately 120 days. This is the average duration that red blood cells circulate in the bloodstream before they are broken down and replaced by new ones.Rate this question:
- 18.
Blood is made in the bone _____ and the ______.
Correct Answer
marrow spleenExplanation
Blood is made in the bone marrow and the spleen. The bone marrow is responsible for producing red blood cells, white blood cells, and platelets. It is a soft, spongy tissue found inside the bones. The spleen, on the other hand, acts as a filter for the blood, removing old or damaged red blood cells and storing platelets. Both the bone marrow and spleen play crucial roles in the production and maintenance of blood cells in the body.Rate this question:
- 19.
Blood tastes sweet as a result of the salt, minerals and iron in the human body.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Blood does not taste sweet as a result of the salt, minerals, and iron in the human body. In fact, blood does not have a specific taste as it is mainly composed of water and various proteins. The taste of blood can vary depending on factors such as diet, medications, and overall health, but it is generally described as metallic or slightly salty. Therefore, the statement that blood tastes sweet is incorrect.Rate this question:
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- 20.
Why is pus sometimes yellow?
- A.
Because it mixes with the bodie's urine
- B.
Because it contains a large amount of dead bugs
- C.
Because of a high content of uric acid in the blood
- D.
None of the above
Correct Answer
B. Because it contains a large amount of dead bugs -
- 21.
White pus gets its color from white blood cells.?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
White pus gets its color from white blood cells because white blood cells are responsible for fighting off infections and foreign substances in the body. When there is an infection or inflammation, white blood cells gather at the site and release enzymes to destroy the bacteria or foreign particles. This process leads to the formation of pus, which contains a high concentration of white blood cells. The white blood cells release a pigment called myeloperoxidase, which gives pus its characteristic white color. Therefore, the statement is true.Rate this question:
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- 22.
Why can pus sometimes be infectious?
- A.
Because it still contains live bugs
- B.
Because its white blood cells have been conquered by the body's invaders.
- C.
Both of the above
- D.
Neither of the above
Correct Answer
A. Because it still contains live bugsExplanation
Pus can sometimes be infectious because it still contains live bugs. Pus is a thick fluid that is produced by the body in response to infection. It is made up of dead white blood cells, bacteria, and tissue debris. The presence of live bacteria in pus can make it infectious and capable of spreading the infection to others. Therefore, both options mentioned in the question are correct explanations for why pus can be infectious.Rate this question:
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- 23.
White blood cells only stay in the blood approximately ______ hours after being made.
Correct Answer
8
eightExplanation
White blood cells only stay in the blood approximately 8 hours after being made.Rate this question:
- 24.
Which of the groups below accurately represents the 4 blood types.
- A.
A, B, C, AC
- B.
AB, A, O, C
- C.
A, B, AB, O
- D.
A, BA, B, O
Correct Answer
C. A, B, AB, OExplanation
The correct answer is A, B, AB, O. This is because these four blood types are universally recognized and represent the different combinations of antigens and antibodies present on the surface of red blood cells. Blood type A has A antigens and B antibodies, blood type B has B antigens and A antibodies, blood type AB has both A and B antigens and no antibodies, and blood type O has no antigens and both A and B antibodies.Rate this question:
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- 25.
Rh factor in blood is either _____ or ______.
Correct Answer
positive negativeExplanation
Rh factor in blood is either positive or negative. This refers to the presence or absence of a specific antigen on the surface of red blood cells. If the antigen is present, the blood is Rh positive, and if it is absent, the blood is Rh negative. This classification is important in blood transfusions and during pregnancy, as Rh incompatibility between a mother and her fetus can lead to complications.Rate this question:
- 26.
The same blood type is not necesary for blood transfusions.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Blood transfusions require matching blood types between the donor and the recipient. If the blood types do not match, it can lead to serious complications and potentially life-threatening reactions. Therefore, it is necessary for the blood types to be the same for successful blood transfusions. Hence, the statement "The same blood type is not necessary for blood transfusions" is false.Rate this question:
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- 27.
Approximately half of all white people are in the type A positive blood group.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given statement is false. Blood type is not determined by race or ethnicity, but rather by genetic factors. The ABO blood group system is independent of race, so it is incorrect to say that approximately half of all white people are in the type A positive blood group.Rate this question:
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- 28.
The blood count reflects how much of the _______ carrying hemoglobin is in the blood.
Correct Answer
oxygenExplanation
The blood count reflects how much oxygen-carrying hemoglobin is in the blood. This means that the blood count measures the amount of oxygen that is being transported by hemoglobin in the bloodstream.Rate this question:
- 29.
If bleeding is profuse, and the blood count drops, a person may die as a result of a lack of oxygen reaching his or her tissues.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
If bleeding is profuse, it means that there is a large amount of blood loss. When the blood count drops, it indicates a decrease in the number of red blood cells, which are responsible for carrying oxygen to the tissues. Therefore, if bleeding is profuse and the blood count drops, it can lead to a lack of oxygen reaching the tissues. This lack of oxygen can be life-threatening and may result in the person's death.Rate this question:
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- 30.
_________ are white blood cells that are involved in allergic reactions
Correct Answer
BasophilExplanation
Basophils are a type of white blood cells that play a crucial role in allergic reactions. They contain granules filled with histamine, which is released when an allergic reaction occurs. Histamine causes blood vessels to dilate and become leaky, leading to symptoms such as redness, swelling, and itching. Basophils also release other substances that attract other immune cells to the site of the allergic reaction. Therefore, basophils are an important component of the immune system's response to allergies.Rate this question:
- 31.
How many different types of white blood cells are there?
Correct Answer
5
fiveExplanation
There are five different types of white blood cells.Rate this question:
- 32.
White blood cells are also known as ________.
Correct Answer
LymphocytesExplanation
White blood cells are also known as lymphocytes. Lymphocytes are a type of white blood cell that play a crucial role in the immune system. They are responsible for identifying and destroying foreign substances, such as bacteria and viruses, in the body. Lymphocytes are produced in the bone marrow and can be found in the blood, lymph nodes, and other lymphoid tissues. They are an essential part of the body's defense mechanism and help to protect against infections and diseases.Rate this question:
- 33.
___________ is the term given to the process of monocytes eating and digesting foreign invaders.
Correct Answer
PhagocytosisExplanation
Phagocytosis is the process by which monocytes engulf and digest foreign invaders. This term describes the mechanism by which these immune cells recognize and engulf pathogens or other particles, forming a vacuole called a phagosome. The phagosome then fuses with lysosomes, which contain enzymes that break down the engulfed material. This process is crucial for the body's defense against infections and plays a significant role in the immune response.Rate this question:
- 34.
White blood cells also migrate out of the blood to destroy bugs in tissues.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
White blood cells, also known as leukocytes, have the ability to leave the bloodstream and migrate into tissues to combat infections. This process is called diapedesis or extravasation. Once in the tissues, white blood cells can identify and destroy pathogens, such as bacteria or viruses, through various mechanisms, including phagocytosis and the release of antimicrobial substances. This ability of white blood cells to migrate out of the blood and into tissues is an essential part of the immune response and helps to protect the body from harmful invaders. Therefore, the statement is true.Rate this question:
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- 35.
_________ is the fluid that carries blood cells.
Correct Answer
PlasmaExplanation
Plasma is the fluid that carries blood cells. It is the liquid component of blood that makes up about 55% of total blood volume. Plasma contains various substances such as water, proteins, electrolytes, hormones, and waste products. It plays a crucial role in transporting nutrients, hormones, and waste products throughout the body, as well as maintaining the osmotic balance and pH level of blood. Additionally, plasma also helps in clotting and immune responses.Rate this question:
- 36.
Plasma is made up of water, salts, minerals, foods, hormones and proteins.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Plasma is indeed made up of water, salts, minerals, foods, hormones, and proteins. It is the liquid component of blood and makes up about 55% of the total blood volume. It carries nutrients, hormones, and waste products throughout the body, helps regulate body temperature, and plays a crucial role in maintaining the body's pH balance. Therefore, the statement is true.Rate this question:
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- 37.
Plasma _______ include clotting factors that help form blood clots to stop bleeding.
Correct Answer
proteinsExplanation
Plasma proteins include clotting factors that help form blood clots to stop bleeding. These proteins play a crucial role in the coagulation process by forming a mesh-like structure that traps blood cells and forms a clot at the site of injury. Without these clotting factors, the body would have difficulty stopping bleeding, leading to excessive blood loss and potential complications.Rate this question:
- 38.
Red blood cells make blood red because they contain millions of molecules of ______.
Correct Answer
hemoglobin
haemoglobinExplanation
Red blood cells make blood red because they contain millions of molecules of hemoglobin or haemoglobin. Hemoglobin is a protein found in red blood cells that binds to oxygen and carries it throughout the body. It is responsible for the red color of blood as it contains iron, which gives it a reddish hue.Rate this question:
- 39.
_________ are molecules produced by lymphocytes that search out and destroy foreign invaders like bugs.
Correct Answer
anti-bodies
anti bodiesExplanation
Antibodies, also known as anti-bodies, are molecules produced by lymphocytes that search out and destroy foreign invaders like bugs. They are part of the immune system's defense mechanism and recognize and bind to specific antigens on the surface of pathogens, marking them for destruction by other immune cells. By targeting and neutralizing these foreign invaders, antibodies help to protect the body from infections and diseases.Rate this question:
- 40.
________ are white blood cells that combat allergies and parasitic infections
Correct Answer
EosinophilExplanation
Eosinophils are a type of white blood cells that play a crucial role in combating allergies and parasitic infections. These cells are responsible for releasing chemicals that help to kill parasites and control allergic reactions. Eosinophils are particularly effective in fighting off parasitic infections by surrounding and destroying the parasites. They also play a role in controlling inflammation and modulating the immune response. Overall, eosinophils are important in the body's defense against allergies and parasitic infections.Rate this question:
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Mar 21, 2023Quiz Edited by
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