The following points about microfilaments are true except
(A) They form cytoskeleton with microtubules
(B) They provide support and shape
(C) They form intracellular conducting channels
(D) They are involved in muscle cell contraction
The correct answer is (C) They form intracellular conducting channels.
Microfilaments, also known as actin filaments, do not form intracellular conducting channels. Instead, they are involved in various cellular functions such as:
– Providing mechanical support and shape to cells (option B)
– Forming part of the cytoskeleton, along with microtubules and intermediate filaments (option A)
– Playing a crucial role in muscle cell contraction, along with myosin filaments (option D)