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Ch. 3 Cell Structure and Function Vocabulary Crossword

Across
a membrane-bound sac, somewhat larger than a vesicle, that functions in cellular storage and transport
the instrument that magnifies an object
the gel-like material of the cytoplasm in which cell structures are suspended
________ membrane- a phospholipid bilayer with embedded (integral) or attached (peripheral) proteins that separates the internal contents of the cell from its surrounding environment
a membrane-bound compartment or sac within a cell
An organelle in an animal cell that functions as the cell’s digestive component; it breaks down proteins, polysaccharides, lipids, nucleic acids, and even worn-out organelles
Rough endoplasmic reticulum initials- a cellular structure that carries out protein synthesis
the network of protein fibers that collectively maintains the shape of the cell, secures some organelles in specific positions, allows cytoplasm and vesicles to move within the cell, and enables unicellular organisms to move
a process that takes macromolecules that the cell needs from the extracellular fluid; a variation of endocytosis
______ vacuole- a large plant cell organelle that acts as a storage compartment, water reservoir, and site of macromolecule degradation
a type of active transport that moves substances, including fluids and particles, into a cell
_______ cell- a cell that has a membrane-bound nucleus and several other membrane-bound compartments or sacs
thetransportofwaterthroughasemipermeablemembranefromanareaofhighwaterconcentrationtoanareaof low water concentration across a membrane
a passive process of transport of low-molecular weight material down its concentration gradient
a small, round organelle that contains hydrogen peroxide, oxidizes fatty acids and amino acids, and detoxifies many poisons
Down
a small, membrane-bound sac that functions in cellular storage and transport; its membrane is capable of fusing with the plasma membrane and the membranes of the endoplasmic reticulum and Golgi apparatus
the entire region between the plasma membrane and the nuclear envelope, consisting of organelles suspended in the gel-like cytosol, the cytoskeleton, and various chemicals
Nuclear ______- the double-membrane structure that constitutes the outermost portion of the nucleus
a cellular structure that carries out protein synthesis
a process of passing material out of a cell
______ transport- the method of transporting material that requires energy
a linkage between adjacent epithelial cells that forms when cadherins in the plasma membrane attach to intermediate filaments
________ cell- a unicellular organism that lacks a nucleus or any other membrane-bound organelle
________ transport- a process by which material moves down a concentration gradient (from high to low concentration) using integral membrane proteins
a plant cell organelle that carries out photosynthesis
the cellular organelles responsible for carrying out cellular respiration, resulting in the production of ATP, the cell’s main energy-carrying molecule
Smooth endoplasmic reticulum initials- the region of the endoplasmic reticulum that has few or no ribosomes on its cytoplasmic surface and synthesizes carbohydrates, lipids, and steroid hormones; detoxifies chemicals like pesticides, preservatives, medications, and environmental pollutants, and stores calcium ions
Cell ____- a rigid cell covering made of cellulose in plants, peptidoglycan in bacteria, non-peptidoglycan compounds in Archaea, and chitin in fungi that protects the cell, provides structural support, and gives shape to the cell
The cell organelle that houses the cell’s DNA and directs the synthesis of ribosomes and proteins
_______ apparatus- a eukaryotic organelle made up of a series of stacked membranes that sorts, tags, and packages lipids and proteins for distribution
______ transport- a method of transporting material that does not require energy
Endoplasmic Reticulum initials- a series of interconnected membranous structures within eukaryotic cells that collectively modify proteins and synthesize lipids