Do endocytosis and exocytosis require energy input and how do they use the energy input? Do they belong to active or passive transport?
1) Endocytosis requires energy input and uses it to transport substances into the cell. Exocytosis also requires energy input and uses it to transport substances out of the cell. Both processes belong to active transport.
2) Endocytosis requires energy input and uses it to transport substances out of the cell. Exocytosis also requires energy input and uses it to transport substances into the cell. Both processes belong to active transport.
3) Endocytosis does not require energy input and uses it to transport substances into the cell. Exocytosis does not require energy input and uses it to transport substances out of the cell. Both processes belong to passive transport.
4) Endocytosis does not require energy input and uses it to transport substances out of the cell. Exocytosis does not require energy input and uses it to transport substances into the cell. Both processes belong to passive transport.