Monday, August 29, 2011

My speech for the Lifeboat Dilemma :D

Today's assignment : write my short speech on my blog! 

hahaha actually, my speech is kind of really short one, but anyway (: here we go!

SPEECH


The mitochondria, which is one of the most important part of the cell, is me!
The cell is made out of protein(The structure of cells, and the extracellular matrix in which they are embedded, is largely made of protein. [Examples: Collagens] (Plants and many microbes depend more on carbohydrates, e.g., cellulose, for support, but these are synthesized by enzymes.)), and we need energy to make protein for our cells.
Why do we need energy? RNA passes the message from the DNA, to ribosome to make the protein. during this process, we need the energy.
And 'I' make that energy to move the RNA. Not only moving RNA, I make the energy to move protein around, muscle fibers contracting around, neurons producing impulses and sending signals to other cell. 
if I didn't exist, the RNA would not move to ribosome.
if the MITOCHONDRIA didn't exist, there would be so cell.
So, if we say this in one sentence, this would be like this.
If the MITOCHONDRIA don't exist, there's no cell!
So I am sure that the cell needs me and I should not be thrown out of the boat.
I am the important part of the cell.

Monday, August 22, 2011

What kind of cell would you like to be and why?



Today my homework was to choose what do I want to be, from the cells, and write the blog post about it. When I got the homework first, I was like,
 "WHAT? DO I REALLY HAVE TO BE A CELL? WELL, I DON'T WANT TO BE A CELL T^T 
I JUST WANT TO LIVE AS A HUMAN!!!" 
.....hahaha......anyway, before I talk about the cell that I want to be, let's see how do they look like. 

(here we go :D) 
Prokaryotic cell













Pro = “before”, karyon = “nucleus”


This is the prokaryotic cell, which is, a group of organisms that lack a cell nucleus (= karyon), or any other membrane-boundorganelles. it is different with eukaryotic cells, which is my second option, because The organisms that have a cell nucleus are called eukaryotes.


So, this is the picture of the eukaryotic cells; animal eukaryotic cell and plant eukaryotic cell.


Animal Eukaryotic cell
Plant Eukaryotic cell
these two are the Eukaryotic cells. 


Eu = “true”, karyon = “nucleus”


so, what's the difference between those cells? what kind of examples does they have?


the common fact that prokaryotic and eukaryotic cells have are these things.

  • they both have DNA
  • they both have ribosome
  • they both have flagella
  • they can reproduce, and also divide
  • they both have RNA and cell walls 
and so on... :D
After researching about both cells, I decided to be a Eukaryotic cell! 

These are the reason why ↓

I liked the RNA, which work as a messenger, and I thought it's really cool!!! 
And also the golgi opparatus, which do the packaging for the protein! really, it's awesome :)
I liked that eukaryotic cell (plant) has the chloroplast, which capture the light energy to conserve free energy. I think it is really cool. :D hehe








Thursday, August 18, 2011

First Science Project ; “Meals on Wheels”

Register project on e-Portfolio: explain how it started, what you had to do, how your team worked, what you discovered, etc, etc, etc. Upload your presentation to your e-Portfolio. Write a self-evaluation: how did this project contribute to your science knowledge? How was it for you to work on different skills (leadership, organizational, time management, teamwork, etc)?


At the first time when we started the project, I was almost like have no idea about it. I came to the international school last semester, and it was my first time to heard about the nutrients.... and a PROJECT??!!!?
The main point of the project was to do the research and discuss about the each menus (there were three different menus), and choose the one which is the healthiest and also to choose the one which is good for the long term diet, or the short term diet. 


Our Group chose Menu 2 as the best diet plan, because it has plenty of nutrients and also balanced. We thought that the healthy diet would be better for customers, and compare to other menus, Menu 2 has the exact idea what we wanted. 


Team evaluation 
At the first time we started the project, we did't use the class time much. I was almost day-dreaming and had no idea how to deal with this nutrients.
Second class time, now we discussed more about how are we going to solve this problem and we divided the role, such as... 'researching, making the power-point, understanding about the nutrients' and so on. 


My job for this project was to research about the all the foods in menu #1, and analyze about it. I should have to know which nutrients are in the food, how those nutrients work in our body, and what happen if we don't have enough nutrients.
And I discovered that there are the 6 most important nutrients which affects a lot to our body, and how the body use those nutrients as a energy. However, our body don't use nutrients as a energy, but also they are essential for cell growth, maintenance and repair. Nutrients provide energy to enable your body to function efficiently. Nutrients, along with fiber and water, are essential to your good health. :D 
And the self evaluation, I will say that I should more concentrate on my work during the class, than doing all the works at home. The researching at home might be easier for my, but doing the research, asking and discussing that I don't know well is also the importance and the reason why we are doing the team project. 


+ And this is my group's presentation. 
+This is the video that I found at Youtube, and I think it's really good :D watch it! haha

Monday, August 8, 2011

“What was the purpose of these first two days of school and what are my plans for this year?”


What was the purpose of these first two days of school and what are my plans for this year?”

First day of school always makes me nervous, and kinda scared. I went to the science class with nervous feeling.
At the first day, when we entered to the room, we did the marshmallow challenge. Teacher gave us 20 sticks of spaghetti, 1 yard of string, 1 yard of tape, and one marshmello. We should make the tallest free-standing building with those meterials. our group tried to do the exercise with my plan and idea, but it was almost impossible plan, so we failed. ( sorry guys :P) was really awesome experience, and only two group suceeed.
Ms.Silva said that if we plan the exact plan and do the more trials, the percentage that we can succeed will be higher.
Second day of school, we talked about the trials, and we watched the video about the doctor who likes skateboarding. There was a Dr.Tae, who likes skateboarding a lot, and he tried to learn a new skill. He tried once, and he could do it. he tried it agian and agian still he tried 58 times. And finially, when he did 58 times, he did the new skateboarding skill. This Dr.Tae's video shows us that if we try alot, we can do it better.


plans
My plans for this year to me, is to get a better grade this year. Last semester, science was the hardest subject to me, and it was also hard to understand everything.So I will try to understand more thing than last year, and memorize more science vocabularies so that I can get better grade. Aso I will study the same, or simillar thing in korean, so that I can understand them in English easier.