back to directory
NEET BIOLOGYHuman Health and DiseaseMedium

Question

In which one of the following options the two examples are correctly matched with their particular type of immunity?

A

Polymorphonuclear leukocytes and monocytes - Cellular barriers

B

Anti-tetanus and snake bite injection - Active immunity

C

Saliva in mouth and Tears in eyes - Physical barriers

D

Mucus coating epithelium - Physiological barriers

Step-by-Step Solution

Innate immunity consists of four types of barriers:

  1. Cellular barriers: Certain types of leukocytes (WBC) like polymorphonuclear leukocytes (PMNL-neutrophils) and monocytes and natural killer cells in the blood as well as macrophages in tissues can phagocytose and destroy microbes
  2. Physiological barriers: Acid in the stomach, saliva in the mouth, and tears from eyes prevent microbial growth
  3. Physical barriers: Skin and mucus coating of the epithelium lining the respiratory, gastrointestinal, and urogenital tracts
  4. Cytokine barriers: Virus-infected cells secrete proteins called interferons

Additionally, injections for tetanus and snakebite contain preformed antibodies, which provide passive immunity, not active immunity

Exam Context & Concepts Covered

This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Human Health and Disease. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

BIOLOGYHuman Health and Diseasefollowingoptionsexamplescorrectlymatched

More Human Health and Disease Questions

View all

Which fish selectively feed on larvae of mosquitoes?

A.Gambusia
B.Rohu
C.Clarias
D.Exocoetus
EasySolve

In higher vertebrates, the immune system can distinguish between self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self–cells, then it leads to:

A.graft rejection
B.auto-immune disease
C.active immunity
D.allergic response
EasySolve

During injury, mast cells secrete:

A.Histamine
B.Heparin
C.Prothrombin
D.Antibodies
EasySolve

During viral infection, the protein formed in host cells to resist is:

A.Interferons
B.Antitoxin
C.Antibody
D.Histone
EasySolve

Cirrhosis of the liver is caused by the chronic intake of:

A.Opium
B.Alcohol
C.Tobacco (chewing)
D.Cocaine
EasySolve

Which one of the following acts as a physiological barrier to the entry of microorganisms in a human body?

A.Tears
B.Monocytes
C.Skin
D.Epithelium of urogenital tract
EasySolve

To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?

A.Cytokine barriers
B.Cellular barriers
C.Physiological barriers
D.Physical barriers
EasySolve

Short-lived immunity acquired from mother to foetus across the placenta or through mother's milk to the infant is categorised as:

A.Active immunity
B.Passive immunity
C.Cellular immunity
D.Innate non-specific immunity
EasySolve

Why 32,000+ students choose TopperSquare

Everything you need to crack NEET

15,000+ Chapter MCQs

Physics, Chemistry, Biology — chapter-wise, topic-wise practice

AI Performance Analytics

Know your weak topics. Get a personalised study plan.

Full NEET Mock Tests

180 questions, timed, with detailed score analysis

PYQ Sets 2010–2024

15 years of past papers with solved explanations

Start Practising Free

No credit card · 30-second signup · Free forever plan included

This neet biology practice question is part of the TopperSquare free question bank. TopperSquare offers 15,000+ chapter-wise NEET MCQs across Physics, Chemistry, and Biology with detailed step-by-step explanations, full mock tests, NEET PYQs (2010–2024), and an AI-powered performance analytics dashboard. browse all neet practice questions → · practice biology sets →

Explore more subjects:Physics MCQs•Chemistry MCQs•Biology MCQs•Botany MCQs•Zoology MCQs•NEET Mock Tests•NEET PYQs