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Cells

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by

Pierce Pittman

on 21 January 2013

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Transcript of Cells

Cells What are cells? All organisms are made of cells. By Pierce Pittman Cells are the smallest unit that can support life. The organisms made by cells can range
from 1 cell to trillions of cells. What are the 2 types of cells? Prokaryotes Prokaryotes Eukaryotes An organism that is made of 1 cell & has no nucleus or other cell wall covered organelles. Includes bacteria & archaea Bacteria Archaea - They have no nucleus - Their DNA is twisted & circular - The organelles have no membrane - A cell wall outside the cell membrane - A tail like structure called a flagellum All cells are made of organelles What are organelles? All cells have structures called organelles Organelles is another word for tiny organs. cell wall, cell membrane, ribosomes, nucleus, endoplasmic reticulum, mitochondria, chloroplast, cytoskeleton, vesicles, golgi complex, lysosomes, vacuoles, cytoplasm, chromosomes, & centrioles. Cell membrane nucleus Endoplasmic reticulum Mitochondria Cell wall A barrier of protection around the cell. It is made of proteins, lipids, phospholipids. A stiff wall that surounds the cell
membrane. Found only in a plant &
fungi cell. vacuole A large organelle in a eukaryote cell. This organelle carries the cells DNA and is considered the brain. This is a large organelle which is mainly
the water & nutrients source for a cell. It is mainly found in plant& fungi cells Ribosomes A system where the membranes are folded with proteins One type is smooth & the other is rough. A protein producing organelle Ribosomes usually are attached to other organelles. Bacteriam DNA Flagellum Cell membrane Cell wall chloroplast The energy producing cell It does it by breaking
down food cells &
making them into ATP They trap energy and produce it into food & oxygen Found only in
plant cells cytoskeleton vesicles A web of proteins inside the cell. It will act like a skeleton & a muscle A small sack that surrounds the material while it is moved Found in all eukaryote cells Golgi complex Lysosomes this organelle packages & distributes proteins all eukaryote cells have one. they contain digestive enzymes they clean-up the
cell & destroy old parts - They have no nucleus - The organelles are not membrane bound -Their DNA is circular -These cells do have a cell wall Eukaryotes They are the largest cells & are even about 10 times larger than the bacteria cells They have a nucleus and membrane covered organelles It includes plant, animal, fungi, & protist cells Plant Animal Both Make up only animals Must contain food by other organisms Contain lysosomes, cell membrane, mitochondria, ribosomes, ER, golgi complex, cytoplasm, nucleus, nucleolus, & chromosomes Do not have chlorophyl in them Contain a cell membane & a nucleus All organelles are membrane bound Have a golgi complex, ER, ribosomes, cell membrane, mitochondria, centrioles, cytoplasm, nucleus, nucleolus, chromosomes, & lysosomes. Both are eukaryotic cells Make up only plants Can create its own food through
photosynthesis Contains Chloroplast, cell membrane, cell wall, mitochondria, ribosomes, ER, golgi complex, cytoplasm, nucleus, nucleolus, chromosomes, & vacoule They have Chlorophyl
(makes them green) If an animal had chlorophyl it might
look something like this . Chromosomes Cytoplasm It keeps your DNA
wrapped up very tightly Found in all cells A slimy & sticky gel that holds the organelles in place. All cells have cytoplasm Centrioles They help with the reproduction system. Use budding because cells are asexuel. My favorite rap - Can with stand extreme envirements
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