I need to know about this domain question

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jennabeandream
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I need to know about this domain question

Post by jennabeandream » Thu Sep 29, 2005 9:12 pm

okay so heres the midterm question i had today, and i want to know if i got it right or not ...


a single celled organism that contains a nucleus and can photosynthesize would be classified in a which DOMAIN?

a.bacteria
b. plantae
c. archaea
d. protista
e. eukarya

i answered b. plantae

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mith
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Post by mith » Thu Sep 29, 2005 9:41 pm

Sorry, but most plants are not single celled.
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February Beetle
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Post by February Beetle » Thu Sep 29, 2005 11:11 pm

Plantea is a Kingdom of the Domain Eukarya I think and Eukarya is the only Domain that has a nucleus and Archaea and Bacteria domains have a "nuclear region" not a defined nucleus. I believe there are some protists that can photosynthesize. Are there no plants that are one-celled?
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jes
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Post by jes » Fri Sep 30, 2005 11:45 am

I'd say the awnser is e:Eukarya, as it is a domaine. Plantae is a kingdom. (and also because plants are multicellulare. there are many photosynthetic protists though, like diatoms and dinoflagellates.)

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MrMistery
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Post by MrMistery » Sat Oct 01, 2005 6:55 pm

As it had been said the corrct answer is e.eukarya. Why?
Well, first of all there are no single-celled plants, plus Plantae is a kingdom, not a domain(same with protista). Archea is excluded because it can not do photosynthesis. Bacteria is excluded because they do not have a nucleus. Eukarya is the domain where you will find unicellular algae and Euglena viridis than comply with all the conditions..
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Andrew
PS: this is a midterm question? What year are you? It seems very easy..
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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