Monday, January 31, 2011

Cancer (cries in agony)

Hey guys! SuperSara here. Today, were talking about cancer (sigh). Sad topic. BUT, it has to do with cell division, which we are learning about, so yeah! Lol, anyways, let's talk about cancer.

                                  

  Cancer starts with your DNA. If a little chip breaks off, and your body can't fix it in time, your cells will go into overload and make tons of new cells, having to do with cell divison. These new cells can either create a:
  • Benign Tumor- Benign acutally means "harmless". This tumor is just where some cancer cells get together and form a lump. If you have one, your doctor will just take it out through surgery, and you'll be fine.
  • Malignant Tumor-  This tumor, well, spreads, it can get in your blood stream, and is very dangerous. If you have a malignant tumor you can either get an MRI (where they take pictures of your spine), or chemotherapy (where they put on you on strong, cancer fighting drugs) this may work, but there's little hope.

Malignant tumor in the brain



                                       
Benign tumor in the arm
    Cancer pretty much sucks. It's hard for everyone, beacuse sometimes theres very little hope. "You have cancer" are the three words NO ONE wants to hear. To prevent cancer you can:
  • Exercise!
  • Eat your veggies!
  • Go to your doctor!
  • Don't smoke!

 
  If your parents, or your parents parents, (or even your parents parents parents for that matter) have cancer than you may have an increased risk.

                                           

If you want to learn more about cancer, visit some of these links.
Jalens Blog
Teemy Bear's Blog
Kevin's Blog

SuperSaraSuperBye!!

Friday, January 28, 2011

New Design!

I will have a new design soon! Completely new, Everything will be changed!

Sunday, January 9, 2011

Mitosis!!!

  Hey SuperSara here! Were going to be talking bout mitosis today! Yay! Here is a cool video  to watch before I start yapping... SO WATCH IT. Just kidding, but you really should.


  Soooooooooo, Mitosis. You just saw each stage, but let's just forget about prometaphase. *WHOOSH!* It's gone! Now let's add interpahse. Just put it in the beginning.  So in order:  Interpahse, Prophase, Metaphase, Anapahse, and Telopahse.  Mitosis takes one cell and turns it into two. Mitosis made you. Your dad gives you 23 chromosomes, and your mom gives you 23 chromosomes. Thus giving you 46 (haha "thus").  When mitosis is done, you have two new, shiny, daughter cells. I don't why they are called daughter cells and not son cells, so don't ask!



  Interphase: Not really a stage of mitosis. But, an important part in a cell's life cycle. It's the longest part in the cell cycle where  DNA replicates, centrioles divide, and proteins are produced. 




Prophase: In this phase, the nucleolus fades and chromatids condense into chromosomes.


Metaphase: Chromosomes line up in the center of the cell.




Anaphase: Spindle fibers shorten and the chromatids are pulled apart and begin moving to the cell poles.




Telophase: The chromosomes move to opposite ends of the cell, two new nuclear envelopes form, and the chromosomes uncoil. Viola! Two new daughter cells!




  Sorry Guys, no video! Hope you still enjoyed! SuperSaraSuperBye!

Sunday, December 12, 2010

Hip Hip Hooray! For DNA! (and RNA too)

  Hello! It's SuperSara talking about DNA and RNA. DNA stands for deoxyribonucleic acid (try saying that 5 times fast). RNA stands for ribonucleic acid.



    So... DNA. Contains everything about you. Not me. You. Well, my DNA contains info about me, and your DNA contains info about you! Let's say you have blonde hair, like me. That's in your DNA. DNA is a double helix found in the nucleus (sounds familiar...) and has tons of information about yourself.

 

  No one has the exact same DNA as you. Not your mom, your dad, your brother, or your sister. The only people that have the exact same DNA are indentical twins. Identical twins are just basically clones. Clones are organisms that share the same exact genetic information. DNA has the letters g (guanine),t (thymine),a (adenine), and c(cytosine). These help make the genetic recipe. (You'll get what I mean when you watch the video at the very end)

                                                

 
  Now let's go on to RNA. RNA stands for ribonucleic acid, again! RNA and DNA are very similar, they're buddies! They also have many differences too. One of the differences you will see below in the video. FUN FACT: (sorry teemy) RNA helps to make protein.



Here's a really cool video by the guy who does the what's the weather song!



Well, hopefully I'll get assigned another blog post about DNA because it's really interesting... SuperSaraSuperBye!!!!

Monday, December 6, 2010

Let's talk about bacteria!!!

  Hey People! SuperSara here talking about the parts of a bacterial cell today. There will be some really cool information before the video at the end! Let's get a move on!

  Let's just start by saying that we have millions of cells. Bacteria have only one cell.They are single-celled organisms.  Here's a picture of a bacterial cell:

  Ok, so let's learn about the parts! The first is the nucleoid:


  The nucleoid is basically like the nucleus. Controls all the parts of the cell, like "the brain",or "the boss".

Next part were gonna talk about are the tiny little hairs on the bacteria cell uses to move. They just swish back and forth and voila! It moves! It swims!!

   You guys remember the cytoplasm right? A bacterial cell has one too. Just does the same job of taking up most of the room and having everything float in it.

  It has ribosomes too! Ribosomes make proteins for the cell. 

  Now were going to be talking about the tail! The tail is called the flagellum. The flagellum helps the cell move just like the tiny little hairs. 

  The outer layers of a bacterial cell are very important. If they weren't there the whole cell would fall apart! Unlike the animal or plant cell, a bacterial cell has 3 layers of protection. In outermost order the capsule, the cell wall, and the cell membrane. 
 Here's a video!

             


  Well, hope you enjoyed this blog post! SuperSaraSuperBye! Oh yeah, check out the video below!





Thursday, November 18, 2010

Animal and Plant cells

  Hello The internet! It's SuperSara with another blog about cells!!! Yay! Ok so this time we are going to talk about the difference between animal cells and plant cells. Even though they are both cells (duh!) there are still many differences between the two.There will be a video at the end (by yours truly) Ok,  I'll stop talking now and get to the point.

  Plant cells. The cell of a plant, obviously, but there's more to it than that. Plant cells have parts an animal cell doesn't have. First of all it has a cell wall. A cell wall is another layer of protection and is basically just a similarity to the cell membrane.


Cell wall circled in red
  Second of all, a plant cell has a much larger vacuole than an animal cell.

Vacuole of an animal cell



Vacuole of a plant cell, much bigger than an animal cell's, right?


   Another difference is that Plant cells have a chloroplast. Chloroplasts have something called chlorophyll.
Chlorophyll is what makes leaves (and whatever else) green. In the fall, the chlorophyll goes into hybernation, which makes the leaves turn red. In the winter, the whole plant(leaf) dies, and so they fall off the trees.

Chloroplasts with chlorophyll


   Plant cells make their own food using photosynthesis. Animal cells have to get their own food. 



Heres the Video!





Hope you had fun!
SuperSaraSuperBye!!

Monday, November 15, 2010

Meet Cellerium

 Hey guys! SuperSara here with another blog about cells. A-Tom's still really sick and doctors say he has the flu for life. But, I talked to A-Tom and he told me he has a friend named Cellerium. Cellerium is gonna be teaching all you guys about cells today, and SuperSara will go sit on the couch and watch television. Ok, here's Cellerium.

  Hey, my name is Cellerium. I am a cell scientist, and I'm going to take you guys on a journey of cells! Here we go!

Cellerium


Everything living thing in the world is made up of cells. Cells are very important because they keep us alive. Once you die, your cells die too. There are two basic types of cells; plant and animal.

Here are some vocabulary words:
  • Nucleus:  Round and dark. Is "the brain" of the cell.

  • Cytoplasm: What the nucleus floats in. Basically it's just this jelly blob that takes up most of the room in the cell.

  • Cell membrane: Protects the cell. Let's good stuff in and out of the cell. Doesn't let bad stuff come in and reminds me of a castle wall.

  • Mitochondria: The powerhouse of the cell. Gives the cell energy, and are rice shaped.

  • Lysosomes: The cleanup crew. Lysosomes are small structures involved with the digestive system.

  • Vacuole: The storage bins. They store food, water, and watse. They pump extra water out of the cell.



  • Ribosomes: Small round structures in the cytoplasm that make proteins.

A Eukaryote cell, the ones that  we are made up of


Next we are going to have a video by SuperSara about cells.

Well... That's all for today! SuperSara fell asleep on the couch, but she specifically told me to tell you this: SuperSaraSuperBye!!!!