answer: Neuro filaments
explanation:
Neurofilaments (NF) are intermediate filaments found in the cytoplasm of neurons. Together with microtubules and microfilaments, they form the neuronalcytoskeleton. They are believed to function primarily to provide structural support for axons and to regulate axon diameter, which influences nerve conduction velocity.
Active transport.
Passive transport, being its opposite, requires no energy at all. Therefore, active transport would require energy or ATP in order to move across.
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