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Science Test cells

science test

What is a cell the smallest unit taht can perform all necessary functions of life
What did robert hook do? discovered cells thought plants had juice incorecctly assumed animals didnt have cells
Response to stimuli response to surrounding environment
the theory all organisims made of at least 1 or more cells A cell is the basic untit of life all cells come from existing cells
4 things all cells have cell membrane organelles cytoplasm dna
what are the 2 types of organism prokariotic and eukariotic
wat is the difference between prokaryotic and eukaryotic cells eukariotic cells have a nucleous which has the dna in it and prokariotic cells have the dna in the cytoplasm
cell membrane outer layer incloses the cell allows nutrients and water in but keeps unwanted meterial out and lets waste out it also recieves and transits message its flexible sei permeable and has parts that like water and some that dont
cell wall supports the cell outer layer in plant cells not in animal cells made of sugars called cellulose and chitin and its rigid
cytoskeleten support and structure gives cell its shape allows cell to move pathway to organelles made of 3 proteins stringy/thready tubes and rigid threads
Nucleus control center for all activities holds dna and sends messages to the rest of the cell double memrane for protection doesnt let dna out
Ribosomes make proteins and decode genes samll no membrane alot of them in every cell some attachted to ER
ER rough = to help make proteins Smooth = make other important things both = deliver things throughout cell attached to nuclear mumbrane ribosomes attached folded membrane and tube
mitochandria power the cell brake down sugars into energy stores atp double membrane folded inside own dan large many in cells that need energy
chloroplasts power cell makes sunlight into sugar and oxygen phtosynthesis happpens only in plant green b/c of chlorophyll have own dna
golgi complex membrane that pinches stuff to hold the packages bubbles of packages go throughout the cell
lysosomes kind of vesicle uses enzymes to break down unwanted organelles and waste different shapes and sizes
vacuole vesicle large central vesicle stores water helps support the cell like a huge bubble
Created by: djacobs