Which of these events is not a part of the second line of defense? You may have more than one correct answer. A. development of a fever B. diapedesis C. edema formation D. synthesis of interferon E. complement activation F. antibody production

Q: Disseminated intravascular coagulation (DIC) is a complication resulting from the: Question 28…

A: The disseminated intravascular coagulation is a condition in which blood clots form throughout the…

Q: Choose the combination of answers that most accurately completes the statement. In what process is…

A: The immune system of the body protects the individual from the attack of external pathogens. The…

Q: Humoral immunity is the part of the adaptive immune system involving: A.cytotoxic T cells killing…

A: The adaptive immune system is also known as acquired or specific immune system. It is a subset of…

Q: Cell-mediated immune response includes the following except to ______. A. activate B lymphocyte B.…

A: Cell mediated immune response is carried out by T lymohocytes of our immune system. It is an immune…

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: Select the correct answer from the answers provided. Which of these characteristics is not a major…

A: Some living organisms cannot be visible by the naked eye and only can be seen under the microscope.…

Q: complement

A: Option D is answer .    The presentation of the antigens to the T helper cells for their activation…

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 lists contains cells that are typically considered to be associated with the…

A: Immunity can be defined as the capacity of the body to fight against the pathogens attacking the…

Q: Which innate immune system component uses MHC class I molecules directly in its defense strategy? a.…

A: Innate immune system:                 The first line of defense that castles border for pathogen…

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: The third line of defense includes: a. inflammation b. stomach’s digestive acid c. phagocytes d. MHC…

A: Answer is d.)  MHC proteins.

Q: Which of the following is a characteristic of a cytotoxic T cell?   Question 7 options:   A)  They…

A: To find: The characteristic of a cytotoxic T cell

Q: __________________ is a condition that results when cytotoxic T cells attack the body’s own cells.a.…

A: Cytotoxic T cells are T cell also known cytotoxic T lymphocytes that kills  virus-infected cells,…

Q: Which innate immune system component uses MHC I molecules directly in its defense strategy? a.…

A: The immune system consists of the adaptive and innate immune responses. Innate immunity is present…

Q: Which of these statements about gamma interferon is false? a. It is a polypeptide autocrine…

A: The interferon gamma is a dimerized soluble cytokine that is the only member of type II class of…

Q: B lymphocytes holding knowledge of an infectious agent for future responses are called: a) helper…

A: Immune system acts as a defense system in our body by protecting from effects of pathogens and also…

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: Which condition is not an autoimmune disease?a. multiple sclerosis c. systemic lupus erythematosisb.…

A: The immune system is responsible for protecting the body from foreign pathogens. Immune system fight…

Q: A patient lacks the ability to make functioning T cells because of a genetic disorder. Would this…

A: T and B cells are major cells that bring about adaptive immune response in human body. T cells are…

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: The detrimental effects of Lupus erythematosis are initiated by A. activated T cells attacking…

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Q: One of the common characteristics of lymphocytes (1), neutrophils, and macrophages) the resulting…

A: In the human body, the resistance against the entry of any foreign particle or antigens is executed…

Q: are cytolytic proteins that binds to target cell's plasma membrane to form pores. a. Chemokines b.…

A: The immune system is a network of cells and  proteins which form a various level of barrier to…

Q: Which of the following is part of the second line of defense? a. Interferons b. Phagocytes c.…

A: The immune system shows immune response in three stages the first line of defence includes the…

Q: Immunoglobins help eliminate the pathogen through the process of:

A: Option C . Direct Phagocytosis .

Q: Which are important in nonspecific immune defenses? a. interferons b. lymphocyte activation c.…

A: The immune system is an organ system of the body that is functionally responsible for protecting the…

Q: Select the best answer or answers from the choices given: Antibodies released by plasma cells are…

A: Plasma cells, more specifically plasma B cells are the WBCs (white blood cells) that arise from bone…

Q: Suppose a person recovers normally from viral infections, but then gets the same viral infections…

A: The B-lymphocytes or the B-cell and the the T-lymphocytes are t-cells are very important for the the…

Q: Which of the following leads to swelling seen in an inflammation? a. Vasodilation  b. Complement…

A: Swelling is the result of the increased movement of fluid and white blood cells into the injured…

Q: Choose the correct one. Which cells produce antibodies? a. Neutrophils. b. Dendritic cells. c.…

A: We know that neutrophils are responsible for secreting cytokines during tissue injury. Hence, Option…

Q: John was bitten by a honey bee and within minutes there was an increase in blood to the site of the…

A: Anaphylaxis is a life-threatening allergic reaction.  This occurs within a minute or second when a…

Q: Which of the following is not involved in first line defense? a-Mucus membranes b-Saliva c-Sweat…

A: Introduction :- The mouth, nose, eyelids, trachea (windpipe), lungs, stomach, intestines, ureters,…

Q: Maria, who is 3 years old, was stung by a bee. The area where the stinger entered the skin became…

A: The inflammatory response occurs when tissues are injured by bacteria, trauma, toxins, heat, or any…

Q: A child was bitten by a dog suspected to have contracted rabies. As a response by the hospital…

A: Artificial active immunity is in which the individual is exposed to an antigen to induce the…

Q: Choose the combination of answers that most accurately completes the statement. An example of an…

A: Introduction: Pyrogens are compounds that cause a fever to develop. When bacteria, viruses, prions,…

Q: An essential property of the immune system is self-regulation. An immune response that is not…

A: Introduction A disorder in which your immune system wrongly targets your body is known as autoimmune…

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: Select the correct one. Which of the following is part of the second line of defense against…

A: The immune system is made up of special organs, cells, and chemicals that battle contamination…

Q: How do Eosinophils provide protective immunity against parasites ? A. By secreting antibodies B. By…

A: Eosinophils are multipurpose cells that have a role in innate and adaptive immunity, metabolism, and…

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: The first line of defense against pathogens includes a. NK cells. b. stomach PH. c. phagocytes. d.…

A: The first line of defense against pathogens Answer : b Stomach pH The first line of defense…

Q: Why is the fact that the patient has no spleen important? A. The spleen is the site of B cell…

A: Spleen is a highly vascular ductless organ that is located in the left abdominal region near the…

Q: Choose the combination of answers that most accurately completes the statement. ................…

A: Interferons are glycoproteins produced by leukocytes as a result of specific stimuli, specifically…

Q: If the patient's mother had previously vaccinated her son against chickenpox, what form of immunity…

A: Immunity is the ability of the body to fight against different microorganism. They are of 2 types -…

Defense Mechanism

Circumstances influence and compel people to behave in a certain way. One such behavior is a defense mechanism. It is employed by people to escape from unpleasant circumstances, thoughts and actions. Defense mechanisms are, thus, psychological strategies that help to avert and avoid unwanted feelings such as guilt or shame and situations such as threat and danger.