摘要
Eukaryotic cells contain a collection of membrane-bounded organelles, in addition to the nucleus, supporting the large size and diverse activities of this type of cell. Evolving with these compartments are filaments and enzymes that convert chemical energy into work （so-called motor proteins）, a network collectively termed the cytoskeleton. Whether it is a chloroplast moving to optimally intercept light or the endoplasmic reticulum deploying its cisternae to deliver secreted proteins, motility of organelles is an essential component of their function, and this motility is driven by the cvtoskeleton.
Eukaryotic cells contain a collection of membrane-bounded organelles, in addition to the nucleus, supporting the large size and diverse activities of this type of cell. Evolving with these compartments are filaments and enzymes that convert chemical energy into work （so-called motor proteins）, a network collectively termed the cytoskeleton. Whether it is a chloroplast moving to optimally intercept light or the endoplasmic reticulum deploying its cisternae to deliver secreted proteins, motility of organelles is an essential component of their function, and this motility is driven by the cvtoskeleton.
