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Biology 21 Online
OpenStudy (anonymous):

What are the three structures found in all living cells?

OpenStudy (anonymous):

nucleaus, vacoule, mitocondria

OpenStudy (anonymous):

Not nucleus, cytoplasm and cell membrane?

OpenStudy (anonymous):

Some organisms are "prokaryotic." That means their cells don't have a nucleus. And mitochondria can only be found in "eukaryotic" organisms. Those are organisms that DO have a nucleus.

OpenStudy (anonymous):

Hmmmm do you know the answer?

OpenStudy (anonymous):

" The common features of prokaryotic and eukaryotic cells are: 1. DNA, the genetic material contained in one or more chromosomes and located in a nonmembrane bound nucleoid region in prokaryotes and a membrane-bound nucleus in eukaryotes 2. Plasma membrane, a phospholipid bilayer with proteins that separates the cell from the surrounding environment and functions as a selective barrier for the import and export of materials 3. Cytoplasm, the rest of the material of the cell within the plasma membrane, excluding the nucleoid region or nucleus, that consists of a fluid portion called the cytosol and the organelles and other particulates suspended in it 4. Ribosomes, the organelles on which protein synthesis takes place" ---> http://www.phschool.com/science/biology_place/biocoach/cells/common.html

OpenStudy (anonymous):

Another link: http://staff.jccc.net/pdecell/cells/basiccell.html

OpenStudy (anonymous):

Yep, and so does remnant.

OpenStudy (anonymous):

Cytoplasm, cell membrane, and nucleus, but red blood cells don't have a cell nucleus or cytoplasm.

OpenStudy (anonymous):

DNA, cytoplasm, ribosomes

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