We had a server outage, and we're rebuilding the site. Most of the site features won't work. Thank you for your patience.
imc indymedia

Los Angeles Indymedia : Activist News

white themeblack themered themetheme help
About Us Contact Us Calendar Publish RSS
Features
latest news
best of news
syndication
commentary


KILLRADIO

VozMob

ABCF LA

A-Infos Radio

Indymedia On Air

Dope-X-Resistance-LA List

LAAMN List




IMC Network:

Original Cities

www.indymedia.org africa: ambazonia canarias estrecho / madiaq kenya nigeria south africa canada: hamilton london, ontario maritimes montreal ontario ottawa quebec thunder bay vancouver victoria windsor winnipeg east asia: burma jakarta japan korea manila qc europe: abruzzo alacant andorra antwerpen armenia athens austria barcelona belarus belgium belgrade bristol brussels bulgaria calabria croatia cyprus emilia-romagna estrecho / madiaq euskal herria galiza germany grenoble hungary ireland istanbul italy la plana liege liguria lille linksunten lombardia london madrid malta marseille nantes napoli netherlands nice northern england norway oost-vlaanderen paris/Île-de-france patras piemonte poland portugal roma romania russia saint-petersburg scotland sverige switzerland thessaloniki torun toscana toulouse ukraine united kingdom valencia latin america: argentina bolivia chiapas chile chile sur cmi brasil colombia ecuador mexico peru puerto rico qollasuyu rosario santiago tijuana uruguay valparaiso venezuela venezuela oceania: adelaide aotearoa brisbane burma darwin jakarta manila melbourne perth qc sydney south asia: india mumbai united states: arizona arkansas asheville atlanta austin baltimore big muddy binghamton boston buffalo charlottesville chicago cleveland colorado columbus dc hawaii houston hudson mohawk kansas city la madison maine miami michigan milwaukee minneapolis/st. paul new hampshire new jersey new mexico new orleans north carolina north texas nyc oklahoma philadelphia pittsburgh portland richmond rochester rogue valley saint louis san diego san francisco san francisco bay area santa barbara santa cruz, ca sarasota seattle tampa bay tennessee urbana-champaign vermont western mass worcester west asia: armenia beirut israel palestine process: fbi/legal updates mailing lists process & imc docs tech volunteer projects: print radio satellite tv video regions: oceania united states topics: biotech

Surviving Cities

www.indymedia.org africa: canada: quebec east asia: japan europe: athens barcelona belgium bristol brussels cyprus germany grenoble ireland istanbul lille linksunten nantes netherlands norway portugal united kingdom latin america: argentina cmi brasil rosario oceania: aotearoa united states: austin big muddy binghamton boston chicago columbus la michigan nyc portland rochester saint louis san diego san francisco bay area santa cruz, ca tennessee urbana-champaign worcester west asia: palestine process: fbi/legal updates process & imc docs projects: radio satellite tv
printable version - js reader version - view hidden posts - tags and related articles

Centrioles that are perpendicular to each other

by Reinarto Hadipriono Tuesday, Oct. 04, 2011 at 5:41 AM
reinarto@hadipriono.com +62231206980 Lemahwungkuk 37, Cirebon, West Java, Indonesia

An interesting condition in the world of biology is the fact that the Centrioles inside the cell is Perpendicular to Each Other.

Centrioles that are ...
image001.jpg, image/jpeg, 204x463



In the course of its evolution, the centre or the core of the Cell-to-be eventually has to make its way towards the edge, to the spot currently occupied by the Centrosome. Certainly, the condition of the Centrosome of the past is not at all similar to that of today’s Centrosome in that the latter has, by its constant exposure to external influences, been undergoing various changes.

In evolution, it is not uncommon that something that once looked simple may, millions of years later, turn into something extremely intricate. Even something that looks as simple as a ball when it first comes into being may later, by evolution, takes the form of rows of tubes so configured that they look like some work of art of an artist. If one is to glance at the Mother Centriole and the Daughter Centriole, one may instantly come to think that there must be a reason for their being perpendicular to each other.

With the body of the Cell-to-be twisted when it divides, all the inner parts of the Cell-to-be in the whole body are affected. The Centrosome-to-be is no exception: the spinning of all its Microtubules-to-be affects it too.

This could perhaps be compared with the mouse of a computer. Equipped with a ball that can roll in any direction, the mouse can easily direct the cursor on the screen in search of whatever one may desire. All one has to do is to “click” the mouse. This is so, because in the inner part of the compartment that holds the mouse, just at the side of the mouse, there are two cylinders, each perpendicular to the other. Thus, when the ball rolls, it touches the cylinders, thereby causing them to spin/twist and direct the Cursor on the screen to move to whichever direction as desired. The horizontal cylinder moves the Cursor vertically, while the vertical cylinder moves it horizontally.

But in the Centrosome, the reverse is true. Both cylinders of the Centrioles, which are perpendicular to each other, are inside the Centrosome. It is possible that with all the Microtubules being twisted, the Centrioles, wherefrom the Microtubules emerge, thus become perpendicular to each other, the way the cylinders in the mouse do. The Centrioles inside the Centrosome receive the twists of the Microtubules three-dimensionally from all directions. This is made possible by the fact that their relations with the Chromosomes and relations among the Centrosomes themselves have kept developing from phase to phase.

In the case of the Mouse and the computer Screen, the twisting of one horizontal cylinder and one vertical cylinder makes it possible for the Mouse to steer the cursor two-dimensionally to any position on the screen. By contrast, the Centrioles, because they are concerned with space (3 Dimensional), have many cylinders in the form of Microtubule triplets—nine in each Centriole in a three-dimensional position. That’s why, unlike the two perpendicular cylinders in a mouse, the output of the Centrioles can spread over space.

Is it possible for us to relate conditions inside today’s Centrosome with the effects of some mechanical process as we do in the case of the mouse above? Let’s just leave this to scientists. It’s for them to seek the answer.

Quoted from “The Emergence of the Cell”,

www.theemergenceofthecell.com

a book written by Reinarto Hadiprono.

reinarto@hadipriono.com
Report this post as:

Local News

Woolsey Fire: Worst News of 2018? J01 12:18AM

Oppose Environmentally-Harmful Development D10 4:03AM

Oppose Environmentally-Harmful Development D10 3:58AM

OUR HOUSE Grief Support Center Presents Night for Hope O30 5:38PM

Marshall Tuck’s racist dog whistle O27 5:01AM

Marshall Tuck’s ethnocentrism contradicts Californian values O27 4:32AM

Contra Costa-Hawkins O25 3:48AM

Debunking Some Anti-Prop 10 Propaganda O12 6:56AM

Why Should California Choose De Leon Over Feinstein? O10 9:55PM

Change Links September 2018 posted S02 10:22PM

More Scandals Rock Southern California Nuke Plant San Onofre A30 11:09PM

Site Outage Friday A30 3:49PM

Change Links August 2018 A14 1:56AM

Setback for Developer of SC Farm Land A12 11:09PM

More problems at Shutdown San Onofre Nuke J29 10:40PM

Change Links 2018 July posted J09 8:27PM

More Pix: "Families Belong Together," Pasadena J02 7:16PM

"Families Belong Together" March, Pasadena J02 7:08PM

Short Report on the Families Belong Together Protest in Los Angeles J30 11:26PM

More Local News...

Other/Breaking News

The Attack of Corporations and the Rich on the Rest of Society J22 2:36PM

bataclown J22 12:32PM

bataclone J21 8:08PM

VAN ATTACK HOAX J21 7:35PM

Mobile Royale Hack Online Generator - Get Unlimited Crystals J21 3:03PM

Unification, séparation et fragmentation J21 2:48PM

Testing Upload J21 7:10AM

FARCELONA.2 J20 7:18PM

FAKE NEWS POR SOROS J20 6:11PM

Chemtrails and Prince J20 2:43PM

Wages For Housework J20 2:41PM

Tutelle comportementaliste J20 9:18AM

A Mistake: Jesse Jackson-Toyota deal-in Lexington -Ky is .8 billion over 10 years 2018 J20 1:17AM

If Trump Declares a AantionalEmergency, He'll Be Breaking the Law J20 12:47AM

Jesse Jackson's Sneak Attck on Toyota Lexington Ky and it's workers 2018 J19 9:12PM

Video: Chris Herdges in Eugene, 1 hr 24 min J19 5:37PM

FAKE NEWS J19 2:31PM

MACROTHSCHILD.2 J19 11:03AM

Judge Delays Ruling on Puerto Rico Debt Deal White House Opposes Island's Food Assistance J18 6:04PM

BATACLOWNS J18 9:28AM

FALSAS VICTIMAS J18 9:22AM

Paraphysique de proxémie guerrière J18 7:59AM

MACROTHSCHILD J17 9:38PM

FARCELONA 8.17.2017 J17 3:23PM

DEAD MAN LIVING J17 10:46AM

DIARY OF A CON MAN J16 10:40PM

PR Debt Cancel, Judge Reviews Cofina Debt J16 9:04PM

Réseautage, fragmentation du capital J16 4:20PM

More Breaking News...
© 2000-2018 Los Angeles Independent Media Center. Unless otherwise stated by the author, all content is free for non-commercial reuse, reprint, and rebroadcast, on the net and elsewhere. Opinions are those of the contributors and are not necessarily endorsed by the Los Angeles Independent Media Center. Running sf-active v0.9.4 Disclaimer | Privacy