Microbiology - Micro Organisms - Discussion

Discussion :: Micro Organisms - Section 1 (Q.No.2)


The oldest eukaryotic organisms are considered to be

[A]. diplomonads like Giardia
[B]. archaea
[C]. fungi
[D]. animals

Answer: Option B


No answer description available for this question.

Avimanyu Ray said: (Jul 5, 2012)  
Archaea belong to prokaryotic organisms, not eukaryotic. They are the earliest prokaryotic organisms.

Priyanka Sharma said: (Jan 15, 2013)  
Archaea is prokaryotic and not eukaryotic.

Naveen said: (Apr 1, 2014)  
It is also considered as eukaryotic because it is origin for eukaryotic.

Haroon James said: (Aug 12, 2014)  
Prokaryotic cells are classified into two domains.

1. Archaea.
2. Eubacteria.

The Archaea have unique characteristics but share its features with Eubacteria & with 3rd domain, Eukarya, too.

That's why Archaea is considered to be the oldest eukaryotic organisms.

Priti said: (Sep 15, 2014)  
Fungi comes under both Eukaryote and Prokaryote. In fact Fungi is organism first detected in nature.

Ashafque Ahmed said: (Oct 27, 2014)  
Archaea is third domain, but related both to both both Eukaryote and Prokaryote.

R.V.Ramchandar said: (Jan 12, 2015)  
Archaea are prokaryotes. However Archaea have characteristics of both prokaryotic and eukaryotic characters. Hence it seems to be the oldest eukaryotes or forerunners of eukaryotes.

Debbie said: (Jan 29, 2015)  
Why it is the oldest Eukaryote? Archaea is a Prokaryotic along with bacteria. Eukaryotes are FUNGI/ANIMALS.

Lizy said: (May 1, 2015)  
Since Archaea belong to kingdom of single microorganism, with no cell nucleus, their are considered to be the oldest prokaryotic organisms not eukaryotes.

Rajesh Kumar said: (Jun 8, 2015)  
Grypania spiralis, multi cellular algae was the oldest eukaryote.

Selamsew said: (Feb 8, 2016)  
Guys what is the difference between archaea & bacteria?

Diksha Singla said: (Jun 17, 2016)  
In archaea, an absence of nuclear membrane temperature. It is the unique feature that distinguishes them from bacteria.

Vikash Singh said: (Sep 7, 2016)  
Archaea have some character related to eukaryotic but it can't be considered under eukaryotic organisms.

Vikash Singh said: (Sep 7, 2016)  
Archaea have some character related to eukaryotic but it can't be considered under eukaryotic organisms.

Ketaki Shinde said: (Jun 25, 2018)  
Diplomonads are the oldest Eukaryotic organism.

They are parasites in humans.

Apart from this Protists, fungi and animals are also Eukaryotic.

Khush Sharma said: (Sep 21, 2018)  
At the pre-historic time, there were meteor showers and other natural disasters.

Archaea bacterias are the only to have been survived in that climate as Carl Woese differentiated it in his 7 kingdom classification.

So they can be the first one.

Nishtha said: (May 7, 2019)  
Archae is a prokaryote not a eukaryote. In the question, it was asked about the bacteria which was bacteria which resembles archae.

Adeola said: (Jul 14, 2020)  
The answer is A : diplomonads like Giardia.

Giardia lamblia is a binucleated, flagellated protozoan parasite that inhabits the upper small intestine of its vertebrate hosts. The entire life cycle, which can be completed in vitro, is simple with cycling between a vegetative trophozoite and a highly resistant cystic form. The parasite is one of the earliest diverging eukaryotes known and more than 95% of the genome is sequenced. This makes Giardia an excellent model system for studies of basic eukaryotic processes like cell differentiation.

Kadari Poojitha said: (Aug 29, 2020)  
Archaea belongs to prokaryotic not eukaryotic.

Debra Castillo said: (Jan 19, 2021)  
The oldest eukaryotic is diplomonads.

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