The development of primary and secondary immune responses to an antigen differs significantly. The primary response may take a week or more to develop fully and establish memory. The secondary response is rapid and relies on the activation of clones of memory cells. Would it not be better if clones of reactive cells were maintained regardless of prior exposure? In this way, the body could always respond rapidly to any antigen exposure. Would there be any disadvantages to this approach? Why?

Q: Select the correct statement about active and passive immunity.

A: Immunity is the power of the organism that protects against disease-causing microorganisms or…

Q: All of the following are necessary for a specific immune response except: O a. red blood cells O b.…

A: Immune response is the manner in which the body protects itself against substances it considers…

Q: Why does the immensely powerful immune system of the body, an organ system that has evolved over…

A: Human immune virus (HIV) is a retrovirus which attacks the immune cells of the body. It affects the…

Q: Match the type of immunity to how it is acquired:

A: Immunity is referred to the body’s ability to defend itself against pathogens and foreign agents…

Q: Describe the main characteristics and differences between innate and adaptive immunity. How does the…

A: The immune system is a complex network of cells, tissues, and organs that protects the body from…

Q: Why is iron availability important in body defenses?

A: The cells of the immune system are categorized as neutrophils, lymphocytes, and monocytes. The…

Q: How could you distinguish the type of T cell that is active in an immune response? In other words…

A: Macrophages are the first cell types to respond to infection. If a macrophage encounters a foreign…

Q: List and describe at least 4 types of innate immunity. Two of your answers should include examples…

A: Innate immunity Innate immunity is the inborn resistance against infections that an individual…

Q: The development of primary and secondary immune responses to an antigen differ significantly. The…

A: The body's defence against infection is provided by the immune system, an intricate system of…

Q: Approximately 70% of the body’s immune system cells are located in or near the wall of the lower…

A: The immune system comprises several types of cells. They can be categorized as B-lymphocytes,…

Q: Jack and Jill were badly burned in an accident at the well and both were taken to the burn unit of…

A: Burn injury is the demage to skin or the tissue caused by various agents like fire , electric , Sun…

Q: A patient has contracted an upper respiratory infection caused by a virus. Her initial adaptive…

A: Immunity is the body’s ability to resist and eliminate the potential harmful foreign invaders to…

Q: The figure below shows the primary and secondary immune responses to an antigen. Which of the…

A: Immune system is a defensive system that works as a shield and form immunity for body and protect…

Q: What are T or B Memory cells and plasma cells considered to be? Classify each as  innate/adaptive…

A: Memory T cells are antigen experienced cells which mediate a faster and potent response against…

Q: Describe the process by which your immune system is able to create antibodies to bacteria which…

A: Skin is the outermost layer that covers the body of humans. It presents an important physical…

Q: Macrophage, dendritic cells, T-cells, and B-cells are all considered cells of the adaptive immune…

A: The white blood cells like neutrophil and macrophages, dendritic cell is also considered phagocytes.…

Q: Give a brief overview about the components of both innate and adaptive immunity. In addition to this…

A: Humans have a very well-developed immune system that helps the body fight against infections and…

Q: During a secondary immune response, approximately how long does it take for antibodies to reach…

A: A secondary immune response is a type of immune system response that occurs after the primary immune…

Q: Name three features of a secondary immune response that distinguish it from a primary immune…

A: Primary Immune Response: It is the initial response of the immune system when first exposed to a…

Q: Clonal Selection Hypothesis is the most accepted theory for how immune cells respond to specific…

A: Introduction  The clonal selection hypothesis has become a generally accepted concept for how the…

Q: Both NK cells and cytotoxic T cells "kill" via the same mechanisms - what are they?  Are these cells…

A: Immunity is the capability of multicellular organisms to resist harmful microorganisms. Immunity…

Q: Which of the following statements are accurate? T cells, B cells, and Natural killer cells are…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Immunity can be acquired in an active or passive way, and it can be natural or artificial. For this…

A: Immunity in simple terms refers to the ability of the body to fight external harmful pathogens or…

Q: Breastfeeding is an example of which of the following types of immunity? View Available Hint(s) for…

A: Breast milk is a rich source of Ig-A and Ig-G. These are antibodies which are required for fighting…

Q: What occurs in an antibody-mediated response? Select all that apply.

A: Answer: ANTIBODY-MEDIATED RESPONSE is also known as humoral response in body , in which by the help…

Q: List and describe the components of the non-specific immune division response. List and describe the…

A: The immune system defends the body against potentially dangerous substances by identifying and…

Q: True or False Can cytotoxic T cells have the ability to identify class 1 MHCs or do they recognize…

A: White blood cells or WBCs are the parts of immune system that protect the body against foreign…

Q: Explain why the secondary immune response (months, years, or decades after the first exposure to a…

A: Immunity is a phenomenon build up inside the body of an organism in order to cope up with foreign…

Q: In studies of skin grafts, thymectomized mice (their thymus has been removed) are often used

A: Humoral immunity is also known as antibody mediated immunity. The B cells undergo differentiation to…

Q: Neuro-immune circuits regulate immune responses in tissues and organ homeostasis. O True False

A: Homeostasis  It refers to the steady state of the internal environment of an organisms. It involves…