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any cellular structure whose function is essential for a cell to ac-quire resources, grow, and reproduce the site of ATP synthesis the site of ribosome synthesis a membrane-bound structure inside a cell
the ER and Golgi apparatus the cell membrane and cell wall mitochondria the nucleus, nuclear pores, and nucleolus
It contains a single membrane. It is continuous with the endomembrane system. It is continuous with the cell membrane. It is continuous with the nucleolus.
a molecule that is attached to nuclear proteins, so that they are retained inside the structure a stretch of amino acids that directs proteins from the nucleus to the ER a signal built into a protein that directs it to the nucleus a component of the nuclear pore complex
They are synthesized in the rough ER. They are transported from the Golgi apparatus to the ER. They are transported through the endomembrane system in membrane-bound transport organelles. They contain a signal sequence that directs them into the ER.
one of the three types of fibers that comprise the cytoskeleton a protein that changes conformation when ATP is hydrolyzed and makes movement possible an enzyme that catalyzes the formation of the ATP used in movement a molecule that "walks" along a microtubule when mannose-6-phosphate is attached
It provides structural support for the cell, supplies tracks used for internal transport, and is used in cell motility. It surrounds the chromosomes of prokaryotic cells. It is the site of ribosome synthesis in eukaryotes. It is an important component in bacterial, archaeal, and plant cell walls.
Only flagella contain a 9 2 arrangement of microtubules. Cilia contain kinesin as a motor protein; flagella contain dynein. Cilia are shorter than flagella; cells have many cilia but only one or two flagella. Only cilia are covered with membrane.
