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20 Cards in this Set

  • Front
  • Back
What is the 3 parts to the cell theory?
1) Every living organism is made up of cells
2) The cell is the basic unit of structure and function. It is the smallest unit that can perform life functions.
3) All cells arise from pre-exsisting celss
What is a eukaryote?
an organism that cells contain a nucleus
What is a prokaryote?
An organism whose cells do not contain a nucleus
What is an organelle?
specialized structure that performs important cellular functions within a eukaryotic cell
What is a nucleus?
A cell's control center
What is a nucleolus and what does it make?
A nucleolus is a part located inside a nucleus that makes ribosomes.
What is a ribosome?
it makes protein.
What is an Endoplasmic Reticulum(ER)?
Transport, "itracellular highway". Ribosomes are positioned along the rough ER, protein made by ribsomes wnter the ER for transport
What is a Smooth ER?
contains no ribosomes
What is a rough ER?
contains ribosomes
What is a Glogi Apparatus?
Processes, packages and secretes protiens like a factory.
What are centrioles?
Cell division in animal plants
What is chloroplast?
Uses sunlight to create food, photosynthesis
-only found in plant cells
What is a cell wall?
provides additional support
-plant and bacteria cells
What is diffusion?
process by which molecules tend to move from an area where thay are more concentrated to an area where they are less concentrated.
-High to Low
What is osmosis?
diffusion of water through a selectively permeable membrane
What is ative transport?
energy-requiring process that moves materials across cell membranes against a concentration difference
What is endocytosis?
process by which a cell takes in by infolding the cell membrane
What is exocytosis?
process in which large amounts of waste leave a cell
What is lisosomes?
contains digestive enzymes, breaks down, "suicide sac"