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Transcript
7.3 Structures and Organelles Division of Labor Cells have a ______________ of labor and contain special ________________ that work together to carry out life _________________. _____________ Structure ___________________ cells are highly _________________ structures Surrounded by a __________________ and contain __________________-bound organelles that perform _______________ functions The organelles are _______________ in the cytoplasm by the _________________ – a network of protein fibers Role: ______________ support and to help move _________________ – microtubules (long _____________ tubes) – act as _____________ for organelle _________________…also help in ________ division – ______________________ (tiny threads) – enable cells to _________, muscle contraction ________________ fluid is known as ___________ and is mostly ___________ Organelles Involved in ____________ Production Much of the _______ is devoted to making ______________ ______________ are made of ____________________and have unique _______________________ (size, ____________, acidity) Since _______________ carry out critical functions, they __________ to be made __________________ Nucleus The __________ stores the __________ DNA contains _____________________ for making _______________ – ROLE: _________ major demands of the ______________ DNA must be ___________________ _____________________ must be available ___________________ by double _________________ called the nuclear ___________________ Nuclear _________________ has __________ called ______________ pores that are used for _______________________ Most _______________ contain a small __________________ area called a nucleolus (site where __________________ are assembled from ______________ and RNA) Ribosomes Ribosomes are __________ organelles that ________ __________ acids together to make _______________ Can be ___________ or attached to _______ ROLE: _______________________ proteins Endoplasmic Reticulum (ER) – The endoplasmic reticulum (ER) is an _______________________ network of thin folded __________________ ROLE: modifies ____________________ and cellular __________________ – Rough ER Covered with _________________ Makes the bulk of ______________ and modifies them for ______________ Smooth ER Makes _________________ Breakdown ___________________ Golgi Apparatus ROLE: ________________, packaging, and _______________ organelle of the cell System of _____________________ stacks (like __________________) Works with _______ in modifying _____________________ Vesicles _________________ – small membrane-______________ sacs that divide ______________ in the ________________ and transport materials within the ____ Mitochondria ROLE: ____________ energy to the __________ Processes your __________ energy into ____________ energy your cells can use _________ shaped and has ________ membranes – ______________ – barrier from cytosol – Inner – ________________ is folded to increase ______________ area (cristae) Have their own ________________ and __________ Cells that _______________ more energy _____________ more ___________________ Vacuoles Fluid-___________ organelles ROLE: ___________ water, __________, inorganic ions, ______________, and wastes _____________ cell vacuoles are ________ In ______________ they contain one very ____________ vacuole (up to ______% of the cell) Lysosomes Small ___________________ organelle ROLE: Contains collective ______________ that break down __________, carbs, ______________, DNA and _____________, bacteria, _____________, and old cell parts Common in ____________, fungi, protists…not usually in _______________ Centrosome and Centrioles Centrosome ROLE: produces ________________________ In ______________ cells it contains two small _________________ called centrioles ________________ – short microtubules that help with cell _______________ Centrioles can also form _________ and flagella Cell Wall Lies _________________ of cell membrane ROLE: ______________, protection, and _______________ Found in algae, _____________ and bacteria Made of __________________ in plants and _______________ Chloroplasts ____________________ reactions (_____________ energy food ____________) Two ________________ system and contain ________________ and DNA Contain membrane stacks – __________________ Contain ___________________ (green) Cell Organelles Chart: Use the information above to fill in the chart. Cell Organelle Organelle Function (Role) Cytoskeleton Ribosomes Rough: Smooth: Organelle Image Golgi Apparatus Vesicles Stores water, food, inorganic ion, enzymes, and waste Lysosomes Cell Wall