microfilaments
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The smallest element in the cytoskeleton is the actin filament, also known as microfilaments. Actin filaments are thin, dynamic fibers made of protein subunits that play a key role in cell structure and movement. They are about 7 nm in diameter, much smaller than microtubules and intermediate filaments.
ATOM
The cytoskeleton forms the structural element of the cell.
The smallest planet is Mercury with a diameter of about 4,880 kilometers, while the largest is Jupiter with a diameter of about 139,820 kilometers. Therefore, the diameter difference between the smallest and largest planet is approximately 135,940 kilometers.
The smallest amount of an element is measured in terms of individual atoms. The smallest amount of an element can be one atom.
Mars has the second smallest diameter among the eight planets in our solar system, with a diameter of approximately 6,779 kilometers. Mercury has the smallest diameter.