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30 Cards in this Set
- Front
- Back
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Cell
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Basic Unit of Structure and function in living things
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Cell Theory
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Understanding that all living things are composed of cells
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Cell Membrane
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Cell Structure that regulates the passage of materials between the cell and it's environment; Aids in protection & support of cell
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Cell Wall
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(Plants) Cell Structure that surrounds the cell membrane for protection and support.
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Nucleus
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Organelle that controls the cell's activities and contains DNA
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Eukaroyte
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cells that have a nucleus
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Prokaryote
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cells that do not contain a nucleus
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Nuclear Envelope
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membrane that surrounds the nucleus of a cell
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nucleolus
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cell structure that contains RNA and proteins
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Chromosome
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Threadlike structure in a cell that contains the genetic information
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Cytoplasm
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Area between the nucleus & cell membrane of a cell
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Organelle
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cell structure that performs a specialized function within the cell
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Mitochondrion
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Changes Chemical energy from food into compounds used by the cell
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Chloroplast
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Converts sunlight into chemical energy in plants
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Ribosome
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Proteins are made here
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Endoplasmic Reticulum
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Complex network, transports materials throughout the inside of a cell
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Golgi Apparatus
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modifies, collects, packages, and distributes molecules made at one location and used at another
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Lysosome
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contains digestive enzymes to digest certain materials in the cell "Clean up crew"
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Vacuole
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Stores materials such as water, salts, proteins, and carbs
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Plastid
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(Plants) storage of food & pigments
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Cytoskeleton
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Framework of cell. Supports cell structure
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Diffusion
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Process by which molecules of a substance move from an area of higher concentration to areas of low concentration
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Selectively Permeable
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Allows some substances to pass through but not others
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Osmosis
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Diffusion of water. Moves from area of higher concentration to area of lower water concentration
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Facilitater Diffusion
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Diffusion of materials across a cell membrane assisted by carrier molecules
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Active transport
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Energy requiring process that moves material across a cell membrane against concentration difference
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Cell Specialization
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Certain cells uniquely suited to perform a particular function within an organism
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Tissue
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(2nd) Group of cells that perform a particular function
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Organ
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(3rd) Group of tissues that work together to perform a specific function
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Organ System
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(4th) Group of organs that work together to perform a particular function
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