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30 Cards in this Set

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