Customer Service Chat
Get quote & make Payment
Nuclear membrane - structure of nucleus, Biology
A OR NUCLEAR MEMBRANE
It is also called Nucleolemma, term given by Erclab & Hertwig.
Karyotheca composed of two unit membranes separated by a 150-300 A° wide perinuclear space. Outer membrame may have 80s ribosomes.E.R. is connected to outer nuclear membrane at several places.
Just beneath inner nuclear membrane, there is a fibrous layer called
. It provides strength to nuclear membrane and also provides attachment site to peripheral heterochromatin.
Nuclear membrane is perforated by nuclear pores of 400 - 1000 Aº diameter with space 1500 Aº . In the oocyte of frog (Xenopus laevis) 30 million nuclear pores are present. Nuclear pores are covered by an octagonal structure composed of eight granular subunits called
Annulus or Bleb
. Anulus and nuclear pore collectively called
These pores regulates transport bet. nucleoplasm and cytoplasm, Small ions like K+, Na+ and Cl- move through nuclear membrane while t-RNA ,r-RNA and m- RNA pass through nuclear pores. Protein
which occur in pore complex regulates the nucleo cytoplasmic traffic .
Posted Date: 10/5/2012 7:57:48 AM | Location : United States
Ask an Expert
Nuclear membrane - structure of nucleus, Assignment Help, Ask Question on Nuclear membrane - structure of nucleus, Get Answer, Expert's Help, Nuclear membrane - structure of nucleus Discussions
Write discussion on Nuclear membrane - structure of nucleus
Your posts are moderated
Write your message here..
Neuropsychological assessmnet of older children, Neuropsychological assessm...
Neuropsychological assessmnet of older children In the recent years, the field of child neuropsychology has undergone tremendous growth. There has been a burgeoning interest in
Illustrate about the principle of context, Illustrate about the Principle o...
Illustrate about the Principle of Context A third principle guiding the neuropsychological assessment of children is that environment contexts help to constraint and determine
#zoology, what is amniocentosis
what is amniocentosis
Qualitative changes, Qualitative Changes The qualitative changes in th...
Qualitative Changes The qualitative changes in the structure of proteins in response to stress can lead to the following: Resistance against denaturation of prote
Similarities between chlorplasts and prokaryotic cells, What are the simila...
What are the similarities between chlorplasts and prokaryotic cells?
What is cyanobacteria or blue-green bacteria, What is Cyanobacteria or Blue...
What is Cyanobacteria or Blue-green bacteria? Blue-green bacteria, or cyanobacteria, used to be classified as blue-green algae within the Plant Kingdom, primarily because they
Advances in neurodiagnostic techniques, Advances in neurodiagnostic techniq...
Advances in neurodiagnostic techniques Major scientific and technology advances have made it easier to correlate behaviours suspected as having a neurological basis with actual
Mechanisms for response – protozoan, Mechanisms for Response – Protozoan ...
Mechanisms for Response – Protozoan Protozoa are sensitive to many kinds of stimuli like touch, temperature changes, light, chemicals, etc. It is not clear how they do so but
Low output versus high output heart failure, Most forms of cardiac diseases...
Most forms of cardiac diseases, like hypertension, valvular diseases and coronary artery diseases manifest as low output heart failure. Systemic vasoconstriction with cold extremit
What is invertebrates, What is Invertebrates? Invertebrates: About 99...
What is Invertebrates? Invertebrates: About 99% of all the animals lack backbones, and are invertebrates! Invertebrates include the phylum Arthropoda, or the animals with joi
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Follow Us |
T & C
Copyright by ExpertsMind IT Educational Pvt. Ltd.