Question

alls
ATP
cells
unity
159. Amongst the given statements, how many are
true/false?
i. An antibody is a molecule that specifically
inactivates an antigen.
ii. IgA is the most active, long acting antibody
representing about 80% of the antibodies.
iii. Antibody that stimulates mast cells is IgE.
iv. Mode of working of antibodies that facilitates
recognition of antigens and their digestion by
phagocytes is known as opsonisation.
v The tail portion of the antibody comprising the
two heavy chains is called the fab.
(1) i& v are true and ii, iii & iv are false
(2) i, iii & iv are true and ii & v are false
(3) i, ii & iii are true and ii & v are false
(4) i, iv & v are true and ii & iii are false
cells
as to
ures
cond
the
ered the connant
​

Answer 1

first is true because it has para Tope which binds antigen second is not true igg is the most abundant third is true 4 is also true therefore option second is right