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Biology Crossword (3.2 - 3.3)

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Across
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a rigid layer that gives protection, support, and shape to the cells of plants, algae, fungi, and most bacteria.
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the plasma membrane, forms a boundary between a cell and the outside environment and controls the passage of materials into and out of a cell
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a protein that detects a signal molecule and performs an action in response
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small, membrane-bound sacs that divide some materials from the rest of the cytoplasm and transport these materials from place to place within the cell
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a molecule composed of three basic parts: a charged phosphate group, glycerol, and two fatty acid chains
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consists of closely layered stacks of membrane-enclosed spaces that process, sort, and deliver proteins.
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A property of cell membranes that allows some, but not all, materials to cross.
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supplies energy to the cell
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tiny organelles that link amino acids together to form proteins
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A model which describes the arrangement of the molecules that make up a cell membrane
Down
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a fluid-filled sac used for the storage of materials needed by a cell
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the storehouse for most of the genetic information, or DNA
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Also knowns as the ER, this is an interconnected network of thin, folded membranes
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organelles that carry out photosynthesis
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membrane-bound organelles that contain enzymes
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a flexible network of proteins that provide structural support for the cell
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These are arranged in a circle and two of them are perpendicular to each other