Il citoscheletro mantiene la forma della cellula, fissa gli organuli, dirige il traffico interno e le consente di muoversi; è formato da filamenti di actina, microtubuli e filamenti intermedi.

I batteri sono cellule procariote; queste cellule sono prive di membrana cellulare e possono vivere anche negli ambienti più estremi.

La parte fluida del citoplasma, il citosol, è una soluzione di ioni, piccole molecole e grosse proteine; nelle cellule eucariote metà del citoplasma è costituito da piccole strutture chiamate organuli.

Tutte le cellule sono rivestite da una membrana cellulare, formata da un doppio strato fosfolipidico; le cellule vegetali hanno anche una parete rigida costituita da cellulosa.

Le cellule Eucariote: hanno dimensioni limitate per favorire il rapporto superficie/volume e rendere le cellule metabolicamente attive.

Il nucleo, avvolto da una doppia membrana dotata di pori per poter comunicare col citoplasma, contiene il DNA sotto forma di cromatina e un nucleolo che assembla i ribosomi.

Ciglia e flagelli sono formati da filamenti proteici; servono per il movimento.

Il vacuolo è una cavità citoplasmatica contenente acqua e soluti, delimitata da una membrana; le vescicole con funzione di trasporto, sono piccole e hanno una struttura uguale al vacuolo

Il reticolo endoplasmatico è costituito da un sistema di membrane; il reticolo rugoso ricoperto di ribosomi da ribosomi sintetizza le proteine e il reticolo liscio sintetizza soppratutto lipidi.

I lisosomi sono vescicole che racchiudono gli enzimi coinvolti nelle reazioni di idrolisi, i proteasomi sono specializzati nel demolire proteine per riciclare amminoacidi, i perossisomi contengono diversi enzimi ossidativi.

I cloroplasti svolgono la fotosintesi clorofialiana ; nei mitocondri, invece, avviene la respirazione cellullare.

I ribosomi sono sono siti presso cui vengono assemblati gli amminoacidi per la sintesi delle proteine.

L'apparato di golgi è un centro di elaborazione di molecole complesse che vengono poi avvolte in vescicole e trattenute nella cellula stessa o esportate.

Happiness and love are choices that we get to make in each and every moment.

I brought several national projects to Katihar.

There's an awful lot of corruption in Japanese business and politics, corruption of the sort that can make for great setting for a spy story.

I think that's what all New Zealanders who are fair-minded want - a good chance for everybody to get ahead, whether it's education or housing.

A two year old is kind of like having a blender but you dont have a top for it.

I've been getting into different gospel artists; Aretha Franklin is someone I've been listening to a lot of.

Donny Hathaway's 'For All We Know' is the song that I've sung the longest. It is a beautiful song about living in the moment and appreciating this very second. That is the song I did for my 'Rent' audition.

On set I keep myself to myself; I'd rather the director speak up. I'm not gonna direct a younger actor. I think the power of example works best, actually.

Being nice merely to be liked in return nullifies the point.

Go back to what's good, what's certain, what's always there. You woke up today. Just start walking. Whatever it is, it'll pass. Time doesn't go backward. That's the one real blessing. It happened; it does you no good to worry. Keep it movin'.

There are hundreds of Frank Lloyd Wright buildings around the United States and in other countries, too. Wright lived into his 90s, and one of his most famous buildings, the Guggenheim Museum in New York, was completed just before his death. Wright buildings look like Wright buildings - that is their paradox.

Now, there is always a tremendous fear of science and progressing forward into areas of the unknown and it is a valid fear. Some of the genetic alterations of food are a little edgy.

It is important to know that what I do is not artistic. I am just a film-maker. I live how I live and I do what I do, which is recording moments of my life as I move ahead. And I do it because I am compelled to. Necessity, not artistry, is the true line you can follow in my life and work.

I live and breathe every element in life.

In fairness, Latin America's elected civilian leaders have made progress in some areas. They have brought their countries back to international respectability, curbed flagrant human rights violations, and sought to build democratic political institutions.

Today it is evident that we have two political parties: the Tax and Spenders and the No-Tax and Spenders. Neither party is fiscally conservative. Is there no room at the inn for an honest conservative? A conservative who makes the case for smaller government on its merits and not just as the fallback option when fiscal bankruptcy threatens?

Strive with all your might to bring your interior activity into accord with God, and you will overcome exterior passions.

Sometimes it is better to begin the journey, to get under way, then it is to sit back and wait until such time that you're convinced that all conditions are perfect and that there'll be no surprises along the route.

Without land, how can you have development of roads, highways, townships, etc?

Our biggest cost is not power, or servers, or people. It's lack of utilization. It dominates all other costs.

I've learned to wait 'til an idea is worth making. That's not really a lesson I've learned; I sort of always did it that way. But there's no reason or need to make videos prior to when you make a show, because then you need material for it.

I stand ready to lead us down a different path where we're lifted up by our desire to succeed, not dragged down by a resentment of success.

I think the great part about what I do is that there's a scoreboard. At the end of every week, you know how you did. You know how well you prepared. You know whether you executed your game plan. There's a tangible score.

The further forward we go, the further back we have to explore in order to go forward again.