Which of the following components possesses a | vedclass

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(D) The human body possesses innate immunity,which includes physical and physiological barriers that prevent the entry of pathogens.$1$. Gastric acid

Vedclass · Accepted Answer

All of the above

Vedclass · Answer

(D) The human body possesses innate immunity,which includes physical and physiological barriers that prevent the entry of pathogens.$1$. Gastric acid $(HCl)$ in the stomach kills many microorganisms that enter with food.$2$. Saliva in the mouth contains enzymes like lysozyme that inhibit bacterial growth.$3$. Tears from the eyes also contain lysozyme,which provides antibacterial protection to the eyes.Since all these components possess antibacterial properties,the correct answer is $D$.

Column-$I$ (Types of immunity)	Column-$II$ (Example)
$A$. Natural active	$p$. Immunity developed by heredity
$B$. Artificial passive	$q$. From mother to foetus through placenta
$C$. Artificial active	$r$. Injection of antiserum to travellers
$D$. Natural passive	$s$. Fighting infections naturally
	$t$. Induced by vaccination

Which of the following components possesses antibacterial properties?

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