Body Fluids And Circulation Ques 27
Antigens are present on the surface of pathogens
[1995]
(a) nucleus inside
(b) on cellular surface
(c) inside the cytoplasm
(d) on nuclear membrane. The nuclear membrane, also known as the nuclear envelope, is a double-layered structure that surrounds the nucleus in eukaryotic cells. It regulates the passage of molecules in and out of the nucleus and contains nuclear pores.
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Answer : b
Hints & Solutions
(b) Antigens are foreign proteins, which stimulate specific immune response (antibody) against them when introduced into the body. They are present on the surface of cell membranes.
BETA
