Molecular mimicry is when ____ on host cells resemble _____ on pathogens causing host to mount an immune response to host tissues.(same word for both blanks) a. Immunoglobulins b. Antibodies c. Antigens

Q: vaccination provides natural passive immunity A. True B. False 1e. Lymph nodes have several…

A: Answer 1a Toxoids and vaccine function similarly  True this statement is correct.  Answer 1b Active…

Q: How does HIV (human immunodeficiency virus) lead to AIDS (acquired immune deficiency syndrome)/lead…

A: Human immunodeficiency viruses causes AIDS.This is the condition where gradual failure of immune…

Q: 1) Which line of defense are these immune response components part of? A) Complement: B)…

A: Immune system helps in protection of organism against disease.Immune system helps in detection and…

Q: The first cell type active in the innate response is usually a(n)       A) phagocyte.…

A: The innate immune system is the first line of defence in the body.

Q: This graph is illustrating the principle that: Secondary response (d) Primary Response anitbody…

A: Primary immune response is the reaction of immune system when it comes in contact with a pathogen…

Q: Which of the following statements is NOT true of a fever? a. Temperature is regulated by chemicals…

A: 1) Option E ( both c and d)  2) option B

Q: Which of these statements about the Fab portion of antibodies is true? a.It binds to antigens. b.Its…

A: Immunology deals with the immune system that gives protection to the body from the harmful…

Q: Antibody production takes place ina. T cells.b. natural killer cells.c. B cells.d. mast cells.

A: Immunology is the branch of science which deals with the study of the immune system, immune response…

Q: Given what you now know about how foreign invaders trigger immune responses, explain why mutated…

A: Humans have a well-developed mechanism to fight the foreign particles entering our bodies. This…

Q: The cross-linkage of antigenic cells by antibodies is known asa. opsonization b. a cross-reaction c.…

A: Antibodies bind with antigen via non-covalent bonds like hydrogen bonds, van der waals interaction.…

Q: Which of the following is a function of cytokines? A. Promote antibody invaders. B. Help T cells…

A: Cytokines : These are small proteins which are crucial in controlling the growth and activity of…

Q: Which of these is not part of insect immunity? (A) enzyme activation of pathogenkilling chemicals…

A: Immunology is the branch of science which deals with the study of the immune system, immune response…

Q: Describe the difference between innate and acquired immunity. Then explain ONE reason why a person’s…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Natural killer cellsa. are known for attacking large parasites, such as tapeworms.b. engulf…

A: Natural Killer cells also called large granular lymphocytes are a type of white blood cell. It is a…

Q: Explain why each choice (a-d) is correct or incorrect.  A vaccine is effective because  a. The…

A: Vaccine contain weak or inactive parts of particular antigen that triggers an immune response…

Q: An example of innate immune cells are: A. Macrophages B. Dendritic cells C. T cells D. B cells…

A:

Q: The region of an antibody that is the antigen binding site is thea. constant region. b. variable…

A: Proteins that are Y-shaped that fight against the body’s foreign invaders are called Antibodies.…

Q: When the body is exposed to the same virus a second time, the immune response is Accompanied by…

A: Any foreign substances or pathogen can be harmful to an organism. Hence, the organism will develop…

Q: Describe how our immune system protects us against harmful invaders. Include the words antigens and…

A: Immune system-: Our immune system is and strong barrier wall which stands between all the invaders…

Q: Which DOES NOT describe monoclonal antibodies? Group of answer choices a. Monoclonal antibodies are…

A: Monoclonal antibodies are made by using identical immune cells that are all clones of a specific…

Q: Which one of the following most correctly describes vaccines containing live, attenuated pathogens?…

A: An attenuated vaccine (also known as a live attenuated vaccination, LAV) is a vaccine that is made…

Q: An immune response against grass pollen often involves:          A. Pathogen-associated molecular…

A: In most of the cases antigens are inhaled or ingested, usually triggering more local reactions in…

Q: A live vaccine (aka attenuated vaccine) contains    A.) antibodies. B.) a pathogen that does not…

A: Vaccine provides active acquired immunity to the human’s against the specific organism. Thus vaccine…

Q: When virus enters into our body, many cells acquire antiviral state due to: a Acquiring resistance…

A: When virus enters our body many cells acquire antiviral state due to INTERFERON PRODUCTION (e)

Q: Biologists can develop antibodies against nerve growth factor (i.e., molecules that inactivate nerve…

A: The brain is a dynamic structure that undergoes structural modifications throughout the life of an…

Q: The best definition of an antigen is:(a) A foreign molecule in the body(b) A chemical that elicits…

A: In biology, ‘Immunity’ is known as the capability of resisting the progression of harmful…

Q: 1.The passing of antibodies into newborn babies by their mothers is known as: A) active immunity B)…

A: Innate immunity: Everyone is born with innate (or natural) immunity, a type of general protection.…

Q: D. antibody B. cell mediated immunity 18. Which of the following best describes the immunity gained…

A: Immunity is defined as the ability of an organism to prevent the entry of harmful microbes in the…

Q: The following are characteristics of innate immune receptors except A. trigger immediate response…

A: Innate immunity is a nonspecific immune response having physical, physiological, cellular, and…

Q: hich portion of an antibody provides antigen binding sites? A.Heavy chain B.Constant portion…

A: The very first antibody was discovered in the year 1890 by  Emil von Behring.

Q: Toll-like receptors (TLRS) act to A. cause phagocytic chemotaxis. B. induce phagocytosis. C. bind…

A: The immune system of any living being is important for its living or survival. When the immune…

Q: Why is there an enzyme attached to the secondary antibody? a. They provide a colometire indication…

A: Introduction Secondary antibodies are especially efficient in immunolabeling, secondary antibody…

Q: Passive immunization ____. Choose one: A.passive immunization is given only to adults B.is an…

A: INTRODUCTION Passive immunity This is artificial immunity created in humany body by injecting…

Q: _____ describes the situation when the immune response generated against an influenza strain limits…

A: Introduction  An immune response is a process that takes place within an organism in order to…

Q: Which of the following would not help a virus avoid triggeringan adaptive immune response?(A) having…

A: Immune system is system which helps our body to fight against the foreign substances which will…

Q: Which of the two antibodies shown in the figure below are most likely to have the same…

A: The immune response is generated once the cells of the immune system recognize the surface molecules…

Q: Which of the following is an INCORRECT match? Constant region - class of antibody O b. Fc region -…

A:

Q: If our immune system can recognize any foreign antigen, why is it necessary to vaccinate a person?

A: The immune system is alerted that something foreign has entered the body and hence elicits an immune…

Q: Herd immunity means that the entire population (not just those who are vaccinated) are protected…

A: Herd immunity is the form of immunity where individuals who are not even vaccinated stay immune from…

Q: Which part of the immune system does not target specific new variants of the COVID 19 invaders? A)…

A: It can be defined as a complex biological system endowed with the capacity to recognize and tolerate…

Q: Which of the following should be the same inidentical twins?(A) the set of antibodies produced(B)…

A: The term MHC denotes Major Histocompatibility complex molecule. This molecule is the host protein…

Q: The complement system of defense is composed of proteins that are always present in the blood. Which…

A: The complement system of defense is composed of proteins that are always present in the blood. The…

Q: Which of the following statements is not true?(A) An antibody has more than one antigen-binding…

A: The ability of the body to defend itself against invading foreign agents like bacteria, viruses, or…

Q: Why are most unimmunized children protected against diseases such as measles?Choose one: A.  They…

A: Immunization is the process whereby a person is made immune or resistant to an infectious disease,…