If my memory serves me well, the function of a cytoplasm is being revealed in the last option from the scale represented above: it supports and holds the cellular organelles. I hope you still need the answer because I bet this one is really helpful.
Gel-like fluid present within the cell membrane (excluding nucleus) is termed as cytoplasm of the cell.
It serves various functions in the cell such as:
It supports and hold all the cell organelles and cell parts.
It serves as the site of most of the cellular activities or processes.
It provides shape to the cell.
It contains the cytoskeleton (actin filaments, intermediate filaments, and microtubules) of the cell which helps in maintaining the cell shape, the movement of materials within the cell, cell division and movement of the cell.
Hence, all options are correct except "determines which substances can enter or leave the cell".
Plasma membrane of the cell determines which substances can enter or leave the cell.
