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

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.

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.

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.

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.

Being so closely related to the South, barbecue was part of segregation and helped defeat it.

I am not a shock jock pastry chef. I don't create desserts using strange ingredients just for the sake of doing so, like so many of my colleagues in the industry.

Writing was something I always as a kid thought would be fabulous and glamorous to be a writer.

I was raised in a Bronx public housing project, but studied at two of the nation's finest universities. I did work as an assistant district attorney, prosecuting violent crimes that devastate our communities.

The Internet's like one big bathroom wall with a lot of people who anonymously can say really mean things. It's fine, I believe in freedom of speech and I think people should think what they want, but I don't care to hear it.

The most important asset of any library goes home at night “ the library staff.

It's taken me a long time to get back into the industry. People were not really open to me working, or being a part of the industry.

The world is so caught up in the 'American Idol' idealistic sort of tendency in regards to just thinking that this whole thing is what everybody wants, but it doesn't help you make a better record.

Comic books epitomize the accessibility disposability and appeal to instant gratification that lie at the core of modern consumer culture.

The wider world is a click away, but whether we mean to or not, we're usually filtering it out.

The role of a goalkeeper is difficult to judge, above all if you haven't been a goalkeeper. It's like me giving an opinion on someone's job without having had any experience in their sector. You start to realise how many stupid things are said and written about goalkeepers.

While acting in 'W,' my worries about the way I act settled down. I also discovered another side of myself. It was a turning point.

There are directors you never, ever want to get close to. Lubitsch was one. Outside of the work, I don't think I ever said five words to him. Mamet was pretty much the same thing. His mind is working all the time.

We've got to understand that the whole nature of the way American democracy guards its freedom has been changed.

Sometimes, as an actor, you're so deeply immersed in a part that you lose control of it. If you're really lucky, a few times in your life it'll take you somewhere you never expected to go. It really blows the top off your understanding of your craft.

I don't find writing easy. That is because I do take great care: I rewrite a lot. If anything is sort of clumsy and not possible to read aloud to oneself, which I think one should do... it doesn't work.

I have on my bookshelf a book called 'Movie Monsters' by Alan Ormsby, a kids' book I got when I was in kindergarten. It started there.

On land, you can walk away from people, from unpleasant situations. But when you're on a ship for 14 months with 49 other people, if you don't resolve your issues it literally could mean - and this would be an extreme circumstance - the sinking of the ship. You learn a lot about other people. You learn a lot about yourself.

When you're onstage and you know you're bombing, that's very, very scary. Because you know you gotta keep going - you're bombing, but you can't stop. And you know that half an hour from now, you're still gonna be bombing. It takes a thick skin.

That undefined and mingled hum Voice of the desert never dumb

If you tell your own story to your children - that includes your positive moments and your negative moments, and how you overcame them - you give your children the skills and the confidence they need to feel like they can overcome some hardship that they've felt.

It seems to me that one of the things that happened with a lot of literary fiction in the 1980s and 1990s was that it became very concerned with the academy and less with how people live their lives. We got to a point where the crime novel stepped into the breach. It was also a time when the crime novel stopped being so metropolitan.

Instead of seeing how much pain I can dish out towards those I disagree with or who I believe have done me wrong I seek to follow the golden rule and use my words and behavior to create more of what the world needs love compassion and connection.

To me, in life, if there's, like, a rule, and I think it's ridiculous, then of course I'll circumvent that but also point out how ridiculous the rule is. Other than that, if I go to a concert, and my seat is Row G, Seat 12, I'm sitting in Row G, Seat 12. I don't care if I'm with five other friends, I'm supposed to be in Seat 12, that's my seat.