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mithocondria, bacteria&chromosomes

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mithocondria, bacteria&chromosomes

Postby kandarp shah » Tue Jun 07, 2005 10:51 pm

hi .... guys
here are some questions that i am bit confused to choose.

1) the internal mambranes of the mitochondria are known as collectively as....
a) granna
b) thylakoids
c) mesosoma
d) cristae

2) all bacteria that cause disease are placed in the kingdom.
a) fungi
b) monera
c) eubacteria
d) archaeobacteria ( my choice)
******* here i am confused about eubacteria because they are helpfull and
disease carring too.
and most of the bacteria are in the kingdom of monera
.

3) the two strands that make up the chromosomes are the. a) centromeres
b) chromatids ( my choice)
c) centrioles
d) spindle fibers
thanks for your help.
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Postby mith » Tue Jun 07, 2005 11:35 pm

1. If you looked up the choices in the dictionary, you'd find what cristae means.

2. look at my other post regarding archaebacteria.(use the search function if you need to)
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Postby MrMistery » Wed Jun 08, 2005 7:17 pm

About Bacteria and Archea
The living world is divided into 3 domains: Archea, Bacteria and Eucaria
Domain Archea contains only 1 kingdom: kingsom archea
Domain Bacteria, also 1 kingdom: Kingdom Monera
The bacteria(members of the monera kingdom) are also referred to as eubacteria-this is not the kigdom name. There is no such thing as kingdom eubacteria, even if some book mention it.
Now, archea are strictly anaerobic, none of them is parasite. So the correct answer is b)monera

PS: archebacteria is an old term, no longer in use
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Postby mith » Wed Jun 08, 2005 7:53 pm

When was your book published? I'm getting conflicting info from my book.
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Postby MrMistery » Wed Jun 08, 2005 8:04 pm

I don't know and can not check becuase i gave the book to a friend. What does your book say?
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Postby mith » Thu Jun 09, 2005 12:39 am

It says monera doesn't exist in the 6 kingdom system.
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Postby MrMistery » Thu Jun 09, 2005 9:13 pm

Hm... I need to do some research in that... Also Canalon should know this...
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Postby th1_rhs13 » Fri Jun 10, 2005 10:03 am

That is becuase it isn't one. It encompasses the 2 bacteria kingdoms. Archea and Eubacteria. Also im not sure where your getting your information from, but it seems really dated. Your best bet is to pick up a recent taxonomy book and go from there. nothing personal but its really confusing to hear your responses.

Again, the 6 kingdoms are (to date)

Archeabacteria
Eubacteria
Portista
Fungi
Anamalia
Plantae

Also what proof/afirmationf do you posses that Archea is no longer seen as a kingdom?

Edit: Ok, look at what you are saying "there is no such kingdom even though some books may say it is.." I'm sorry but your diffiance toward accreditted Biologists/Taxonmists is apparent. I'm not sure what you are trying to accomplish by negating many Vital and crucil steps/parts to systems.

I also recall you are the individul who wouldn't accept the fact that interphase is part of Mitosis, on the simple ground of you tryng to simplify a system and not seeing it woth be observed. honestly, before offering "advice or advising" look into your staements.
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Postby MrMistery » Fri Jun 10, 2005 9:38 pm

Actually that was a quote from a book. I looked into it(actually canalon looked into it and told me) that both Monera and Eubacteria are still used BUT, in bactriology the definition of kingdom is not neded as the domain only has one kindgome.
Ok, now you can check Bergey or any other bacteriology manual after 2004 and you will see that life is divided into 3 domains: Archea, Bacteria and Eucarya. Now, inside each domain we have kingdoms- so, Archea is both the kindgom name and the domain name.
By the way, i always look into my ideas before i offer them to someone else. It turnes out here that i didn't look deep enough since this apperas to still be a debated subject.
So, the answer is b or c...
PS: I have read more than 50 biology books and have seen with my own eyes the immense differences between them. Basic rule in science: nothing is true just becuase someone says it is. It is true if it can be proved or if everyone agreed on it(like taxonomy)
PPS(off-topic): All my books state that interphase is not a part of mitosis. Please give we some web site that says otherwise
By the way, thanks for the help Patrick
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Postby mith » Fri Jun 10, 2005 9:57 pm

Props to patrick!!
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Postby th1_rhs13 » Sat Jun 11, 2005 7:24 am

Not familiar with sites (as my studies focus on text, and notes), will a book citation suit you? You can further discredit as you see fit.

I agree that these things which we hold to be "true" are constantly fluxuating, and as such should not hold them as an end. I believe you cite the works of Carl Woese, by stating the 3 divisions of Domains, correct? I'm not well versed on his work, but i do denote the theory of such.

I'm sorry if I was percieved as jaded, or the like but it just seems perplexing to see a vast amount of inconsistancies. Perhaps being in this field I should be accomedate it and accept it. I personally do not have enough weightor experience to throw around (nor would I really if i did posses it) I simply seek clarification. Again I applogize if my approach or assessment was not suitable. Either way, carry on.
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Postby xand_3r » Thu Aug 04, 2005 7:24 pm

Hello, I'm new here. I saw your questions and I've decided to register on this website, and I'm a biology fan too. Now, the answers for kandarp shah: for the first question the correct answer is d)cristae; the thylakoids are disks surrounded by a membrane that contain clorophyll, granna represents a stack of thylakoids and mesosoma is a formation derived from the cell membrane on which is anchored the bacterial chromosome (the mesosome is found only in bacterial cells);
for the second question the correct answer is b)monera; eubacteria and archaebacteria aren't kingdom names they represent a classification of bacteria - ancient, anaerobe bacteria and new bacteria;
the answer of the third question is correct; the 2 centrioles are part of the centrosome (they form a 90 degree angle between themselves) and they are responsible for the formation of the spindle fibres (they appear when the cell divides). Now, as regards the division in kingdoms I believe that this is a problem because there are books that contradict each other. We learned at school that life is divided into 5 kingdoms :Monera, Protistae, Fungi, Plants and Animals, but I also learned that biology is the land of contradictions. The division between Procaryotes (Monera) and Eucaryotes (the others) reffers to (as far as I now) to the absence or presence of an individualised nucleus. I didn't read anywhere that the archaebacteria are considered a kingdom. Interphase is the period between 2 cell divisions so it doesn't belong to mitosis. Biology is dinamic so things might have changed - if you have books that say something different I think it would be good to give their names so we can consult them. I will search in my books to see what they're saying.
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