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cell membranes - Answers are selectively permeable, acts more like a fluid than a solid because its
molecules are constantly moving, cell membranes surround all animal, plant, and bacterial cells; it is a
bilayer composed mainly of phospholipids and proteins
nucleus does not have - Answers cytoplasm
endoplasmic reticulum and Golgi apparatus - Answers substances that are produced in a cell and
exported outside of the cell would pass through these __
mitochondria - Answers cells like the muscle cells which require lots of energy would probably have
many __
lysosomes - Answers viruses,bacteria, and old organelles that a cell wants to get rid of are broken down
in __
ATP - Answers mitochondria store the energy released when they burn glucose as ____
ribosomes - Answers the structures that synthesize proteins in cells are the ___
cristae - Answers the folded inner membrane in mitochondria which increases the surface area for
chemical reactions to take place is called the __
nucleolus - Answers the dark spot seen in the nucleus in non-dividing cells where RNA for ribosomes is
made is called the ___
smooth ER - Answers the organelle that makes steroids in gland cells, regulates calcium in muscle cells,
and a break down toxins in liver cells is the ___
nucleus, chloroplasts, and mitochondria - Answers the cells organelles that are surrounded by double
membranes and contain their own DNA are the __
phospholipids and proteins - Answers two molecules are used to make cell membranes?
glycoproteins - Answers integral proteins with carbohydrates attached that stick out on the exterior
surface of cell membranes and help recognize self.
eukaryotes have membranes around their nucleus and organelles and prokaryotes don't - Answers one
difference between eukaryotes and prokaryotes is _
larger - Answers vacuoles are _ in plant cells than in animal cells
stay away from - Answers cell membranes form because the hydrophobic tails on phospholipids try to
__ water.