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Topic 7

Cells/Organelles (7.1 Definitions)

TermDefinition
Cell the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
Cell Theory a theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells.
Eukaryote A eukaryote is any organism whose cells contain a nucleus and other organelles enclosed within membranes. Eukaryotes belong to the taxon Eukarya or Eukaryota.
Prokaryote a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.
Cell Membrane Allows substances to pass & block others.
Cell Wall Additional Layer Structure & Protection
Central Vacuole Water Storage & Provide a little extra support.
Chloroplast Traps Sunlight - Produces Food - Photosynthesis
Cytoplasm Jellylike substance outside the cell nucleus.
Golgi body Modifies and Repackages proteins for "export".
Lysosome Nutrients that are cleaned out.
Mitochondria Will fold many times and is where a cell will turn into food.
nucleolus Makes ribosomes
nucleus Central of the cell. Protects the cell's DNA.
organelle any of a number of organized or specialized structures within a living cell.
ribosome Proteins are made by Ribosomes.
rough ER Connected to the outer later of the nucleus & is covered in Ribosomes.
smooth ER Does not have ribosomes on it's surface so it looks smooth. Transport to the Golgi.
Created by: Joekiller385