In exocytosis,cells release material such as proteins like enzymes from within the cell into the extracellular space. Endocytosis is where a cell transports molecules such as proteins <span>into the cell. The complimentary and twined processes can be used for the transport of proteins as an example.</span>
<span>There are two structures that would be found at a passive continental margin. These structures are continental shelves and continental slopes.</span>
