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Chapter 8-Cells
Question | Answer |
---|---|
cell | the basic unit of any living organism |
prokaryotic cells | do not have a distinct nucleus or membrane bound organelles |
eukaryotic cells | have a nucleus and organelles |
organelles | structures in cells that carry out specific functions |
cell membrane | flexible material that holds the contents of a cell; keeps bad things out of a cell and keeps the cytoplasm inside |
cell wall | found in plant cells; rigid structure made of cellulose that adds support and structure to a cell |
nucleus | the control center of the cell; where DNA is found |
cytoplasm | the gelatin like fluid that holds all of the organelles |
mitochondria | the powerhouse of the cell; digests nutrients and creates energy for the cell |
chloroplasts | found only in plants; uses sunlight to create and store glucose |
golgi body | acts like a packaging center to gather, sort and process simple molecules into more complex ones |
lysosome | contains enzymes that help break down food and remove waste |
vacuole | storage bin where water and food and waste can be stored; much larger in plants |
ribosome | proteins are built here by connecting amino acids together |
centriole | are important for cell division |
smooth endoplasmic reticulum | acts as a transportation network in a cell; does not have ribosomes attached |
rough endoplasmic reticulum | acts as a transportation network in a cell; has ribosomes attached |
nucleolus | sphere shape found inside the nucleus that helps make ribosomes for the ER |
autotroph | organism that can make its own food |
heterotroph | organism that relies on other organisms for energy |