Biology - Human Health and Diseases Question with Solution | TestHub
MatchList IwithList II
| List I (Immune cells) | List II (Functions) |
|---|---|
| (A). Plasma cells | (I). Bind to infected cell and secrete perforins |
| (B). Helper T-cells | (II). Produce specialized glycoproteins, called antibodies |
| (C). Cytotoxic T-cells | (III). Engulf invading pathogens and process the antigens |
| (D). Antigen presenting cells | (IV). Stimulation of B-lymphocytes, macrophages |
Choose thecorrectanswer from the options given below:
Options:
Answer:
Solution:
Plasma cells are effector B-lymphocytes that produce and secrete large amounts of antibodies, which are specialized glycoproteins. Thus, (A) matches with (II).
Helper T-cells secrete cytokines that stimulate the proliferation and differentiation of B-lymphocytes and activate macrophages. Thus, (B) matches with (IV).
Cytotoxic T-cells recognize infected cells and secrete perforins and granzymes to induce apoptosis in the target cells. Thus, (C) matches with (I).
Antigen presenting cells (such as macrophages and dendritic cells) engulf pathogens, process their antigens, and present them on their surface using MHC molecules to activate T-cells. Thus, (D) matches with (III).
The correct matching is (A) - (II), (B) - (IV), (C) - (I), (D) - (III).
Answer: (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
