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Biology Crossword (3.2 - 3.3)

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