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eukaryotic cells

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eukaryotic cells

Postby Tina Hakola on Tue Mar 08, 2005 1:03 am

What cellilar features do all eukaryotic cells have in common?
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Postby Jelanen on Tue Mar 08, 2005 2:17 am

Hrmm..

Nucleus, Endoplasmic reticulum, Golgi complex, vesicles, mitochondrion

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Thanks for your feedback

Postby Tina Hakola on Tue Mar 08, 2005 3:37 am

Again i'm new to Biology so I greatly appreciate your feedback.
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Postby Sinead Ryan on Tue Mar 08, 2005 3:44 pm

From what i know common features to eukaryotic cells are:
1: Plasma membrane
2: Cytoskeleton
3: Nuclear envelope (that is the double membraned nucleus)
4: Membrane bound organelles
5: Endoplasmic Reticulum
6: Ribosomes
7: Mitocondrion
You may know that cillia, flagella, and centrioles are present in animals cells and not in plant cells, however this is not completely accurate. From what i know these are also present in the cells of seedless plants such as moses and ferns.

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Postby MrMistery on Tue Mar 08, 2005 9:07 pm

I don't know if they are present in moses and ferns but the Euglena virdis and other members of the protista kngdom posses these structures(from here both plants and animals were "born")
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Postby thank.darwin on Tue Mar 08, 2005 10:39 pm

Vacuoles are also in eukaryotic cells... don't assume that people know what "Membrane bound organelles" are... Tina Hakola - They are organelles that are bound by a membrane - Mitocondrion, vacuoles, chloroplasts (plants only), and the nucleus. Lysosomes are also only in eukaryotic cells :D
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Postby adidasty on Thu Mar 10, 2005 10:23 pm

Eh...just note that plant cells don't have centrioles in their microtubule organizing center so eukarytoe cells dont all have that in common...some cells, like erythrocytes, have no nuclei so it really all depends what types of eukaryotic cells you're talking about. in general, most eukaryotic cells have plastids or mitochondria, a nucleus, golgi apparatus and other well known cellular organelles.
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Postby MrMistery on Thu Mar 10, 2005 10:39 pm

Every living cell needs genetic material, in our case, a nucleus. erythrocytes have a nucleus at all organisms except mamals. Why do you think at mamals the erythrocytes only live for 30 days or so? No living thing can survive for long without genetic material(and don't give me the prions 8) 8) -they are not living things :D :D )
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Postby adidasty on Fri Mar 11, 2005 4:08 am

yeah youre right, but erythryocytes ARE eukaryotic so they count as being super-specialized eukaryotic cells. biology is seriously full of all those things that cheat the "rules." lol
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Postby Poison on Fri Mar 11, 2005 4:32 pm

Biology is the science of exceptions... :)
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How charged with punishment the scroll
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Postby biostudent84 on Fri Mar 11, 2005 6:01 pm

Poison wrote:Biology is the science of exceptions... :)


But is there an exception to that statement? :wink:
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Postby Poison on Fri Mar 11, 2005 7:07 pm

Oooo , you are right, there is no exceptiton for that statement. :lol:
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How charged with punishment the scroll
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