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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
Plasma membrane
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phospholipid bilayer containing cholesterol and proteins and some carbs. forms a selectively permeable boundary of the cell
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acts as a physical barrier to enclose cell contents; regulates material movement into and out of the cell; establishes and maintains an electrical charge difference across the plasma membrane; functons in cell communication
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cilia
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short, numerous membrane extensions supported by microtubules, which occur on exposed membrane surfaces of some cells
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move substances over the cell surface
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nucleus
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large structure enclosed within a double membrane; contains chromatin, nucleolus, and nucleoplasm
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houses the DNA that serves as the genetic material for directing protein synthesis
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nuclear envelope
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double membrane boundary between cytoplasm and nuclear contents; continuous wiht rough endoplasmic reticulum
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seperates nucleus from cytoplasm
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nuclealus
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large, prominent structure within the nucleus
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functions in synthesis of ribosomes
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cytoplasm
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contents of cells between the plasma membrane and nuclear envelope
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responsible for many cellular processes
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cytosol
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viscous fluid medium with dissolved solutes
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provides support for organelles; serves as the viscous fluid medium through which diffusion occurs
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rough endoplasmic reticulum
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extensive interconnected membrane network that varies in shaper; ribosomes attached on cytoplasmic surface
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modifies, transports, and stores proteins produced by attached ribosomes; these proteins are secreted, become components of the plasma membrane, or serve as enzymes of lysosomes
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smooth endoplasmic reticulum
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extensive interconnected membrane network lacking ribosomes
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synthesizes, transports, and stores lipids; metablizes carbs; detoxifies drugs, alcohol, and poisons; forms vesivles and peroxisomes
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golgi apparatus
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series of several elongated, flattened saclike membranous structures
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modifies, packages, and sorts materials that arrive from the ER in transport vesicles; forms secretory vesices and lysosomes
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lysosomes
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spherical-shaped membrane-bound organelles formed from the golgi aparatus
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digest microbes or matierls
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mitochondrion
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double membrane-bound organelles containing a circular strand of DNA
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synthesize most ATP during aerobic cellular respiration by digestion of fuel molecules in the presence of oxygen
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ribosomes
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organelles composed of oth protein and ribosomal RNA that are organized into both a large and small subunit; may be bound to a membrane or free in cytosol
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engange in protein syhtnesis; bound ribosomes produce proteins that are secreted, incoprorated into plasma membrane, and wihtin lysosomes; free ribosomes produce proteins used wihtin the cell
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