General Knowledge - Biology - Discussion

Discussion :: Biology - Section 1 (Q.No.18)

18. 

Prokaryotic cells lack

[A]. nucleolus
[B]. nuclear membrane
[C]. membrane bound by organelles
[D]. All of these

Answer: Option D

Explanation:

No answer description available for this question.

Kishor Kumar Suryawanshi said: (Jan 21, 2012)  
Prokaryotic cells are not contain the nucleous, nucleolus, and nuclear membrane. They are also not contain the some cell organelles.

Tulisa said: (Apr 26, 2012)  
There are two types of cells- Eukaryotic cells and Prokaryotic cells.
Eukaryotic cells are those which have a well developed nucleus.
Prokaryotic cells are those which don't have a well developed nucleus. Cells that lack a membrane-bound nucleus are called prokaryotes.

Ravi said: (May 17, 2012)  
Prokaryotic does not have nucleus. It is free bounded membrane.

Kunjabihari said: (Jan 9, 2013)  
Prokaryotic cells have nucleus of primitive character called Incipient nucleus.

Sadi said: (Mar 23, 2013)  
Prokaryotic cells contain nucleoid which is not membrane bounded.

Ankit Sinha said: (Jul 13, 2013)  
Prokaryotic cells are the most primitive type of cells and does not contain any nucleus or membrane bound organelle.

Anshul said: (Sep 27, 2013)  
Prokaryotic cells don't have nucleus and nuclear membrane. Only eukaryotic cells have these properties.

Monica said: (Nov 8, 2013)  
Prokaryotic:primitive cells, do not have cell organelles, eukaryotic:animal cells have cell organelles like mitochondria also have nucleus and nucleolus.

Sai Vignesh said: (Nov 19, 2013)  
Prokaryotic cells contain incipient nucleus or nucleoid but it would not contain nuclear membrane.

K.Prasanthi said: (Jan 30, 2014)  
Prokaryote is a unicellular organism having cells lacking membrane-bound nuclei. Prokaryotics are the primitive cells.

Tina. M said: (Mar 20, 2014)  
Prokaryote has no nucleus but I am sure they contain a nuclear membrane.

Dhruvil said: (Jun 23, 2014)  
Prokaryote has nucleus surrounded by cell wall and contain various organelles but they lack nucleolus and cell membrane.

Mehak said: (Nov 24, 2014)  
Prokaryote do not have nucleus but it have nucleolus.

Allah Bux.Khp. said: (Apr 16, 2015)  
Prokaryotic are no nuclear membrane.

Eukaryotic are nuclear membrane.

Ayat said: (Jul 9, 2015)  
Prokaryotic cell lack definite nucleus and on the other hand Eukaryotic cell have true nucleus.

Nikitha said: (Oct 8, 2015)  
But when we search in google your getting to know prokaryotes have nucleoules and they are telling the reason about RNA so what the answer.

Dubha Muritik said: (Apr 10, 2016)  
Prokaryotic cell lacks membrane-bound nucleus.
Eukaryotic cell "have" membrane to bond ORGANELLES.

Subashrahul said: (May 25, 2016)  
Prokaryotic cell lacks membrane to bound cell organelles.

Keerthana said: (Jan 20, 2018)  
Prokaryotes are organisms containing a prokaryotic cell. A prokaryotic cell does not have a true nucleus (well defined or well-organised nucleus). They also lack membrane-bound organelles, centrioles and nucleolus. The nuclear material is found without a cover, i.e the nuclear material remain uncovered, exposed or naked which indicates the absence of nuclear membrane so the nuclear material or nucleus lies free in the cytoplasm (part of the cell which is present in b/t the nucleus and the cytoplasm).

On the other hand eukaryotes are the organisms containing true nucleus along with the presence of membrane bound organelles, centrioles and nucleolus. Here, the nuclear material is not found without a cover, i.e, the nuclear material does not remain uncovered, exposed or naked which indicates the presence of nuclear membrane. So, the nuclear material or the nucleus is well bounded by a nuclear membrane.

Eg. For eukaryotes:-bacteria, blue-green algae.

Eg for prokaryotes:-multi-cellular organisms.

Gideon said: (May 28, 2018)  
Prokaryotic cells are known as primitive cells, they lack the nucleus.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.