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Which of the following statements regarding different barriers of innate immunity is not correct?
- a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our body
- b)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our body
- c)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our body
- d)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our body
Correct answer is option 'B'. Can you explain this answer?
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Which of the following statements regarding different barriers of inna...
Innate immunity is the first line of defense of our body against pathogens. It consists of physiological and cellular barriers that prevent the entry and growth of microorganisms in our body. These barriers are present in different parts of our body and work together to protect us from infections.
Physiological barriers:
Physiological barriers are the physical and chemical barriers present in our body that prevent the entry and growth of microorganisms. The following statements regarding different physiological barriers of innate immunity are correct:
a) Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our body.
- Acid in the stomach kills most of the microorganisms that enter our body through food or water.
- Saliva in the mouth contains enzymes and antibodies that prevent the growth of microorganisms in the oral cavity.
- Tears from the eyes contain lysozyme, an enzyme that can break down the cell wall of bacteria and prevent their growth.
b) Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our body.
- This statement is not correct as the mucous membrane is not just a physical barrier but also a site of active immune defense. The mucous membrane contains specialized cells called epithelial cells that secrete mucus, which traps microorganisms and prevents their entry into the body. The mucous membrane also contains immune cells such as macrophages, dendritic cells, and lymphocytes that can recognize and destroy the invading microorganisms.
Cellular barriers:
Cellular barriers are the immune cells present in our body that can recognize and destroy the invading microorganisms. The following statements regarding different cellular barriers of innate immunity are correct:
c) Certain types of leucocytes such as polymorphonuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our body.
- Polymorphonuclear leucocytes (PMNL-neutrophils) are the most abundant type of white blood cells in our body. They can recognize and engulf bacteria and other microorganisms.
- Natural killer cells are a type of lymphocyte that can recognize and kill virus-infected and cancerous cells.
d) Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our body.
- This statement is correct. Interferons are proteins produced by virus-infected cells that activate the immune cells and protect non-infected cells from viral infection. Interferons can induce the expression of antiviral genes in the non-infected cells, which can prevent the replication of the virus.
In conclusion, statement b is not correct as the mucous membrane is not just a physical barrier but also a site of active immune defense.
Physiological barriers:
Physiological barriers are the physical and chemical barriers present in our body that prevent the entry and growth of microorganisms. The following statements regarding different physiological barriers of innate immunity are correct:
a) Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our body.
- Acid in the stomach kills most of the microorganisms that enter our body through food or water.
- Saliva in the mouth contains enzymes and antibodies that prevent the growth of microorganisms in the oral cavity.
- Tears from the eyes contain lysozyme, an enzyme that can break down the cell wall of bacteria and prevent their growth.
b) Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our body.
- This statement is not correct as the mucous membrane is not just a physical barrier but also a site of active immune defense. The mucous membrane contains specialized cells called epithelial cells that secrete mucus, which traps microorganisms and prevents their entry into the body. The mucous membrane also contains immune cells such as macrophages, dendritic cells, and lymphocytes that can recognize and destroy the invading microorganisms.
Cellular barriers:
Cellular barriers are the immune cells present in our body that can recognize and destroy the invading microorganisms. The following statements regarding different cellular barriers of innate immunity are correct:
c) Certain types of leucocytes such as polymorphonuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our body.
- Polymorphonuclear leucocytes (PMNL-neutrophils) are the most abundant type of white blood cells in our body. They can recognize and engulf bacteria and other microorganisms.
- Natural killer cells are a type of lymphocyte that can recognize and kill virus-infected and cancerous cells.
d) Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our body.
- This statement is correct. Interferons are proteins produced by virus-infected cells that activate the immune cells and protect non-infected cells from viral infection. Interferons can induce the expression of antiviral genes in the non-infected cells, which can prevent the replication of the virus.
In conclusion, statement b is not correct as the mucous membrane is not just a physical barrier but also a site of active immune defense.
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Which of the following statements regarding different barriers of inna...
Mucous membrane lining the respiratory, gastrointestinal and uriogenital tracts helps in trapping the microbes and constitute physical barriers of our body.
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Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer?
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Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer?.
Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer?.
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Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following statements regarding different barriers of innate immunity is not correct?a)Acid present in the stomach, saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitute physiological barriers of our bodyb)Mucous membrane lining the respiratory, gastrointestinal and urinogenital tracts helps in trapping the microbes and constitute physiological barriers of our bodyc)Certain types of leucocytes such as polymorpho nuclear leucocytes (PMNL-neutrophils) and lymphocytes such as natural killer cells, constitute cellular barriers of our bodyd)Virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection and constitute cytokine barriers of our bodyCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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