Immune System

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What is the primary function of Natural Killer Cells?

To produce antibodies against specific pathogens

To phagocytose foreign particles and bacteria

To differentiate into cytotoxic T-cells and helper T-cells

To recognize and eliminate virus-infected cells, malignant tumor cells, and transplanted bone marrow cells (correct)

Which type of immune response develops shortly after birth and during the first few months of life?

Acquired immunity (correct)

Adaptive immunity

Passive immunity

Innate immunity

What is the primary function of Cytotoxic-T-cells?

To produce antibodies against specific pathogens

To kill virus-infected cells and damaged cells (correct)

To help B-cells in the immune response

To activate the complement system

What is the name of the protein that Natural Killer Cells use to kill target cells?

Perforin Signup and view all the answers

What is the term for the process by which B-cells transform into plasma cells?

Activation Signup and view all the answers

What is the function of IgG antibodies?

To increase phagocytosis and directly attack microbes and toxins Signup and view all the answers

What is the term for the specific immune response that becomes more efficient with repeated attacks?

Adaptive immunity Signup and view all the answers

What is the name of the process by which millions of different antigen receptors are coded for?

Genetic recombination Signup and view all the answers

What is the primary function of Helper-T-cells?

To help cytotoxic-T-cells and B-cells in the immune response Signup and view all the answers

What is the term for the process by which B-cells recognize and bind to specific antigens?

Antigen binding Signup and view all the answers

Which structure is responsible for producing lymphocytes and acting as a blood reservoir?

Spleen Signup and view all the answers

What is the primary role of macrophages in the immune system?

Maintaining long-lasting infections and cleaning up tissue debris Signup and view all the answers

Which part of the lymphatic system is responsible for filtering interstitial fluid and transporting white blood cells?

Lymph Signup and view all the answers

Which component of the immune system fights pathogens through multilobed cells that engage in early stages of bacterial infections?

Neutrophils Signup and view all the answers

Which immune defense involves the use of antibacterial enzymes present in saliva and tears?

First line of defense Signup and view all the answers

Which factors can influence the immune response?

Age, prior response, sex, habitat, physical response Signup and view all the answers

The primary roles of phagocytic white blood cells in the immune system are associated with which line of defense?

Second line of defense Signup and view all the answers

Which phagocyte type is characterized by its large size and long life, playing a crucial role in clearing dead cells and large pathogens?

Macrophages Signup and view all the answers

What type of molecules do mucous membranes trap to protect the body?

Microbes and dirt Signup and view all the answers

How is lymph circulated within the lymphatic system?

Circulated semi-passively, dependent on contraction of lymph vessels Signup and view all the answers

What is the primary function of the lymphatic system?

To filter out microbes and waste from interstitial fluid Signup and view all the answers

Which type of phagocyte is characterized by its multilobed nucleus?

Neutrophil Signup and view all the answers

What is the term for the non-specific defense mechanisms that provide immediate protection against infection?

Innate immunity Signup and view all the answers

Which of the following is NOT a function of the spleen?

Regulating body temperature Signup and view all the answers

What is the primary function of mucus in the immune system?

To trap and remove microbes and dirt from the body Signup and view all the answers

Which of the following is an example of a non-specific defense mechanism?

The production of antimicrobial proteins in tears Signup and view all the answers

Which of the following is NOT a function of macrophages?

Producing antibacterial enzymes Signup and view all the answers

What is the primary function of stomach acid?

To kill bacteria through a low pH environment Signup and view all the answers

Which of the following is an example of a secondary lymphoid organ?

Lymph nodes Signup and view all the answers

What is the primary function of the lymph?

To filter out waste and transport white blood cells Signup and view all the answers

Which of the following cells is responsible for killing cells that have lost MHC I molecules on their surface?

Natural Killer Cells Signup and view all the answers

What is the primary function of histiocytes in connective tissues?

To engulf and digest foreign particles and microorganisms Signup and view all the answers

Which of the following is a characteristic of antigen receptors?

They are expressed on the surface of B-cells and T-cells Signup and view all the answers

Which of the following immune responses is characterized by the production of antibodies?

Antibody-mediated immunity Signup and view all the answers

What is the function of IgA antibodies?

To work against bacterial toxins and directly attack some microbes Signup and view all the answers

Which of the following is a characteristic of adaptive immunity?

It becomes more efficient with repeated attacks Signup and view all the answers

Which of the following cells is responsible for helping cytotoxic-T-cells and B-cells in the immune response?

Helper-T-cells Signup and view all the answers

What is the term for the process by which B-cells recognize and bind to specific antigens?

Antigen recognition Signup and view all the answers

Which of the following is a characteristic of IgG antibodies?

They are involved in fighting antigen the second time it appears Signup and view all the answers

Which of the following is a characteristic of the response mechanism of B-cells?

B-cells transform into plasma cells and secrete antibodies Signup and view all the answers

Immune System

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Questions and Answers

What is the primary function of Natural Killer Cells?

Which type of immune response develops shortly after birth and during the first few months of life?

What is the primary function of Cytotoxic-T-cells?

What is the name of the protein that Natural Killer Cells use to kill target cells?

What is the term for the process by which B-cells transform into plasma cells?

What is the function of IgG antibodies?

What is the term for the specific immune response that becomes more efficient with repeated attacks?

What is the name of the process by which millions of different antigen receptors are coded for?

What is the primary function of Helper-T-cells?

What is the term for the process by which B-cells recognize and bind to specific antigens?

Which structure is responsible for producing lymphocytes and acting as a blood reservoir?

What is the primary role of macrophages in the immune system?

Which part of the lymphatic system is responsible for filtering interstitial fluid and transporting white blood cells?

Which component of the immune system fights pathogens through multilobed cells that engage in early stages of bacterial infections?

Which immune defense involves the use of antibacterial enzymes present in saliva and tears?

Which factors can influence the immune response?

The primary roles of phagocytic white blood cells in the immune system are associated with which line of defense?

Which phagocyte type is characterized by its large size and long life, playing a crucial role in clearing dead cells and large pathogens?

What type of molecules do mucous membranes trap to protect the body?

How is lymph circulated within the lymphatic system?

What is the primary function of the lymphatic system?

Which type of phagocyte is characterized by its multilobed nucleus?

What is the term for the non-specific defense mechanisms that provide immediate protection against infection?

Which of the following is NOT a function of the spleen?

What is the primary function of mucus in the immune system?

Which of the following is an example of a non-specific defense mechanism?

Which of the following is NOT a function of macrophages?

What is the primary function of stomach acid?

Which of the following is an example of a secondary lymphoid organ?

What is the primary function of the lymph?

Which of the following cells is responsible for killing cells that have lost MHC I molecules on their surface?

What is the primary function of histiocytes in connective tissues?

Which of the following is a characteristic of antigen receptors?

Which of the following immune responses is characterized by the production of antibodies?

What is the function of IgA antibodies?

Which of the following is a characteristic of adaptive immunity?

Which of the following cells is responsible for helping cytotoxic-T-cells and B-cells in the immune response?

What is the term for the process by which B-cells recognize and bind to specific antigens?

Which of the following is a characteristic of IgG antibodies?

Which of the following is a characteristic of the response mechanism of B-cells?

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