Which cells do not produce antibodies but hel | vedclass

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(A) The immune system consists of two main types of lymphocytes: $B$-cells and $T$-cells.$B$-cells are responsible for the production of antibodies (h

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$T$-cells

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(A) The immune system consists of two main types of lymphocytes: $B$-cells and $T$-cells.$B$-cells are responsible for the production of antibodies (humoral immune response).$T$-cells do not produce antibodies themselves.However,helper $T$-cells ($T_h$ cells) play a crucial role by releasing cytokines that stimulate and assist $B$-cells to proliferate and differentiate into plasma cells,which then secrete antibodies.Therefore,$T$-cells are the cells that assist $B$-cells in antibody production.

Column-$I$	Column-$II$
$P$. Physical barriers	$I$. Acid in stomach,saliva in mouth,tears from eyes
$Q$. Physiological barriers	$II$. Skin,mucus coating of epithelium lining the respiratory,gastrointestinal and urogenital tracts
$R$. Cellular barriers	$III$. Interferons
$S$. Cytokine barriers	$IV$. Polymorphonuclear leukocytes ($PMNL$-neutrophils),monocytes,$NK$ cells,macrophages

Column-$I$	Column-$II$
$1$. Cellular barrier	$A$. Saliva in the mouth
$2$. Physiological barrier	$B$. Interferons
$3$. Cytokine barrier	$C$. Natural killer (type of lymphocyte)
$4$. Physical barrier	$D$. Mucus coating of the respiratory tract

Which cells do not produce antibodies but help $B$-cells in the production of antibodies?

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