Thus, the sixth basic property of cells (only three more to go!), as Karp tells us, is that:
Like your local grocery store on a Saturday (ha!), cells are sites of bustling activity. Within cells, as in a warehouse in real life, materials are constantly being transported from one place to another, structures are constantly being assembled and taken apart. Sometimes, the entire cell will move from one site to another. Dynamic mechanical changes within cells are the driving force for these kinds of cell activities. Many of these mechanical changes are initiated when “motor” proteins change shape. Motor proteins can be equated to molecular “machines,” (such as the many machines we use each day to make our lives easier), which cells use to perform their mechanical activities (Karp 2013).
A prospective medical student, looking to help others succeed.