What do you think it is. It must be the cell division in which you grow. Ooh, interesting stuff right?
Hell, do you think I find it interesting? Well, here goes the story of growth.
*WOW* Aren't you suprisingly stunned?
1)You begin life as a zygote
And if you're wondering what the hell a zygote is. It's only the most "wonderfullest" thing in the entire universe. It's just one of those things that you grew from. You were a zygote in you early, and I must say, very very early years. You were created from the gametes.
Gametes. What are they? They are just a fancy name for eggs and sperm which we all know has to do with the process of fertilisation. And I guess you all want to know what that is too. Hmmm?
Fertilisation happens when a male and female do the dirty *cough* *cough* and did not put it inside their heads that if they didn't want a tiny totter running around the place, they could have just used contraception, dumbasses. But, frankly, some people do want kids and, I'll just shut up now about all that. It has nothing - no nothing to do with mitosis. You'll figure it all out in the process of meiosis. Now, that's where it gets all interesting, eh? Okay, back to the topic, fertilisation happens when the sperm reaches the egg and creates a zygote. w00t!! hooray. Can we leave now? whatever...
2)What is mitosis really?
Well, I can't just get right off my butt and tell you straight off from the very first step to the very last in slow progression because that would be boring, wouldn't it? Okay, so basically it's the cell division that occurs to make new body cells.
Without it, we'd probably be stunted for our entire lives or be stuck as one of those zygotes for our entire lives. Would you fancy that? Hell no. Well, to me, I'm short enough as it is and if no mitosis meant being stunted as a organism smaller than a millimetre, I'm freakin' glad there is such thing as mitosis.
Better watch your mouth next time if you ever, ever blurt out that you wished mitosis never existed because if that happened, we'd all be out of existence. We wouldn't even be here right now.
3)Basic Facts About Mitosis
*It happens in every single cell in your body except the sex cells and such
*It's the process of growth in cells
*When replicated, the daughter cells are exactly the same as the parent cells
*Two daughter cells are produced
*A cell has 46 chromosomes so evidently the daughter cells would also have 46 chromosomes each.
This type of cell division is used to brand-spanking new cells when an organism needs to grow some or repair any damaged tissue. [No, that wouldn't be the tissue paper variety either! More like tissue in body organs]
Now, this is the hard part. I've got to explain to all of you how mitosis really works. *sigh* Just my luck but no worries, I'm learning how it all works at this very moment, so go on and listen. This is my take on cell division - Mitosis.
NB. If you are a little stupid (like me x_x) chromosomes are lengthwise, not little blobs!
*The first step? There's the cell right? And in the cell should be chromosomes. [Duh!] The cell starts off by preparing to divide. That's 46 chromosomes still. Just wait, it will happen.
*The chromosome double, so there are now technically 92 chromosomes in this one cell. The thing is that, each chromosome doubles from itself, so on each and every one of them, two chromosomes are attached by a centrometre which obviously is at the centre of the attached chromosomes.
*Little spindle fibres from each "pole" (as you call it) attaches to the centrometres and pull the chromosomes to the centre of the cell, lined up in a row/column/(whatever you call it!)
*The spindles fibres from each pole and attached to the centrometres become a little shorter and pull each of the chromosome copies [which you can now call chromatids] apart towards the poles of the cell.
[Call it north pole and south pole if you may.. or even east pole and west pole.. or maybe north east pole and south west pole.. -_- you get me, right?]
*So now, there are equal and identical chromatids on each side of the cell. Some kind of "waist" will appear on the cell. So if you could observe it, you would probably see a blob going very unproportionally skinny in the middle.
Eventually, the spindle fibres will disappear and you don't see them no more. Some kind of nuclear membrane [which I like to call the shield - mind you, you'll have to use the word "cell membrane"] will form around each of the two groups of chromosomes and the "waist" gets even skinnier until there's no waist at all. That's because...
*Now, the thing you would see would be two seperate cells!! YAY!! You survived mitosis school! Aren't you proud? Now go to your mummy and tell her how you learnt "ALL ABOUT MITOSIS!".
You think she'd be proud? She'd better be. After teaching you lot about how mitosis works, gets me a little exhausted. No bother though, I've become a little more understanding of mitosis now too.
So basically, we went through this whole learning process together. FUN!
So you memorised how the cell division process of mitosis works? Too lazy to actually remember the whole thing? I will break it up into simpler steps so this can just be a guide to help you remember. I mean, if you just think of some of these words then maybe you'll just get it all into your head when it's the exams.
Get ready? Go!
*Spindle fibres. Chromosomes to centre.
*Chromosomes divide to poles.
And I do realise that those notes are in note form so don't take them literal to every word.
I hope that I have made Mitosis seem a little easier for you. And for those who can't be bothered to read this very imformative article, stuff you! (Naw, I'm kidding) Go to brainpop.com. They've got plenty of flash animations for you. Not as imformative *cough* *cough* as my brilliance of work, but give 'em credit, eh? I mean I watched it to enlarge my brain just a few days ago.
Anyways, remember that one word and definition MITOSIS - Cell division of Growth.
If you have some trouble figuring which one's which? Meiosis or Mitosis? Sexual Reproduction or Growth?
Just think of this
Pretty lame but this was how I remembered it.
Mitosis - My toes grow! (Mi tos)
Meiosis - My ass on the front! (Lame... I just made that up. You know, Mei os - My ass, heh...)
Bye bye, my little Science Freaks.