acquired immunity Flashcards
What is the acquired immune response?
The acquired immune response is a specific immune response that develops over time following exposure to antigens.
True or False: The acquired immune response is immediate upon exposure to a pathogen.
False
Which cells are primarily involved in the acquired immune response?
T cells and B cells
Fill in the blank: The acquired immune response is also known as the _____ immune response.
adaptive
What type of immunity do B cells provide?
Humoral immunity
What do T cells primarily target?
Infected cells and cancer cells
Multiple Choice: Which of the following is NOT a characteristic of the acquired immune response? A) Specificity B) Memory C) Immediate response D) Adaptation
C) Immediate response
What is the role of antibodies in the acquired immune response?
Antibodies neutralize pathogens and mark them for destruction.
True or False: The acquired immune response can remember previous infections.
True
What are the two main types of T cells involved in the acquired immune response?
Helper T cells and Cytotoxic T cells
Fill in the blank: The process by which B cells produce antibodies is called _____.
clonal selection
What is the primary function of Helper T cells?
To activate B cells and other T cells.
Multiple Choice: Which type of immunity is characterized by the presence of antibodies? A) Innate B) Acquired C) Passive D) Active
B) Acquired
What is an antigen?
A substance that induces an immune response.
True or False: The acquired immune response is the same for every pathogen.
False
What is the significance of memory cells in the acquired immune response?
Memory cells allow for a faster and stronger response upon re-exposure to the same antigen.
Fill in the blank: Vaccination is a method to induce _____ immunity.
active
What is the main difference between active and passive immunity?
Active immunity involves the body generating its own response, while passive immunity involves receiving antibodies from another source.
Multiple Choice: Which type of T cell kills infected cells? A) Helper T cells B) Cytotoxic T cells C) Memory T cells D) Suppressor T cells
B) Cytotoxic T cells
What is the function of suppressor T cells?
To regulate and suppress the immune response to prevent overactivity.
True or False: The acquired immune response can be enhanced by previous infections.
True
What are cytokines?
Signaling molecules that mediate and regulate immunity and inflammation.
Fill in the blank: The two main types of acquired immunity are _____ and _____ immunity.
humoral, cell-mediated
What is the role of dendritic cells in the acquired immune response?
Dendritic cells capture and present antigens to T cells.
Multiple Choice: Which of the following is an example of passive immunity? A) Vaccination B) Maternal antibodies C) Infection D) All of the above
B) Maternal antibodies
What is the clonal expansion in the context of the acquired immune response?
The rapid multiplication of specific B or T cells upon encountering their specific antigen.
True or False: Acquired immunity is present at birth.
False
What is the significance of the primary and secondary immune responses?
The primary immune response is the initial response to an antigen, while the secondary immune response is faster and stronger due to memory cells.
