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Dictionary » N » Nucleolus

Nucleolus

Definition

noun, plural: nucleoli

The round granular structure within the nucleus of a cell, and composed of protein and RNA.


Supplement

Nucleolus is involved with ribosomal RNA synthesis and formation of ribosomes in eukaryotes.


Word origin: New Latin, from Latin, diminutive of nucleus, kernel.

Related forms: nucleolar (adjective).

See also: nucleus.


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Membrane bound or not, Double Membrane.. Help Please...

... mistakes. If I've left something blank, it just means that I'm stupid and have no idea what it is >.>Thank you in advance. Nucleus - Double Nucleolus Chromatin Nuclear Envelope - Double Smooth/Rough Endoplasmic Reticulum - Membrane Bound Golgi Body Central Vacuole Lysosomes - Membrane Bound ...

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by Persona
Sun Aug 10, 2008 7:29 pm
 
Forum: Cell Biology
Topic: Membrane bound or not, Double Membrane.. Help Please...
Replies: 0
Views: 809

help! my biology teacher is trying to kill me!

... a) 36-38 b)45 c)10 d)4 8. Which of the following is a feature of plant cell division that distinguishes it from animal cell division? a) the nucleolus disappears and then reappears b)Cytokinesis does not occur c) four new cells (rather than two) are produced per mitotic division d) a cleavage ...

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by marnita
Sat May 31, 2008 10:44 pm
 
Forum: General Discussion
Topic: help! my biology teacher is trying to kill me!
Replies: 2
Views: 2107

Cat Ovary Maturing Follicle Microscope Picture

... difficulty in finding resources on the matter... Here is my picture: http://www.freewebtown.com/adeel/catovary.bmp It doesn't have a nucleus or nucleolus visible, so I can't label those of course. I also can't label the close by primordial egg cells, since they're not part of the maturing follicle. ...

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by TerrorByte
Thu Oct 25, 2007 10:40 pm
 
Forum: Cell Biology
Topic: Cat Ovary Maturing Follicle Microscope Picture
Replies: 1
Views: 3136

Elodea Microscope Diagram

... Now, I can easily label cell wall, chloroplast and cytoplasm, but I was also hoping to label the nucleolus and nuclear membrane, as is seen in this picture I found here: http://www.ndpteachers.org/perit/Elodea%5B1%5D.JPG I think ...

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by TerrorByte
Wed Oct 10, 2007 12:39 am
 
Forum: Cell Biology
Topic: Elodea Microscope Diagram
Replies: 3
Views: 15924

1 crazy idea

Does the bacteria for cheese has a nucleolus?

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by mehdi71000
Fri Jun 22, 2007 4:42 pm
 
Forum: Cell Biology
Topic: 1 crazy idea
Replies: 11
Views: 1114
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