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cells
Cells vocabulary
Term | Definition |
---|---|
cell membrane | protective layer that covers a cells surface and acts as a barrier between the inside of a cell and the cells enviornment |
organelles | small body in a cells cytoplasm that is a specialized to preform a specific function |
cytoplasm | the region enclosed by the cell membrane that includes the fluid and all of the organelles of the cell |
nucleus | control center of the cell. contains the DNA |
prokaryotic | no nucleus, DNA in cytoplasm, circular DNA (ex.yeast) |
eukaryotic | nucleus with DNA in it, linear DNA (ex. animal cell,plant cell, fugi |
bacteria | first cells on earth, single cell |
cell | smallest functional and structral unit of all living things |
tissue | group of similar cells that preform a common function |
organ | a structure made up of a collection of tissues that carry out a specalized function animals-stomach, eyes, kidney,lungs plant-leaf,stems,roots |
organ system | a group of organs working together to preform body functions digestive, pespiratory,circular |
lysosomes | transport undigestive material to cell membrane. Cell breaks down if lysosome explodes |
vacuole | membrane bond sacs for storage, digestion, and waste removal contains water solution, helps plants maintain shape |
nucleolus | inside nucleus contains DNA to build proteins |
chloroplasts | usually found in plant cells contains green chlorophyll where phoyosynthesis takes place |
golgi complex | protein 'packaging' plant move materials in and out of the cell |
ER | assist in the production processing, and transport of proteins in the production of lipids |
Mitochondria | organelle has double membrane, and the inner membrane is folded. This organelle contains it's own DNA |
ribosomes | each cell contains thousands. Makes proteins, found on the ER and floating througout the cell |
cell wall | most commonly found in plant cells, fungi cells, and bacteria cells, supports and protects cells, |
cell theory | All organisms are made up of one or more cell The cell is the basic unit of all living things All cells come from exsisting cells |
homeostasis | the maintenance of an internal balance of conditions in a changing external enviornment |
mitosis | the chromosome copies are separated and the nucleus and cell divide to form 2 identical cells |