So, for this week's Weekly Science Article Report, please find an article that addresses cells in some way and report back to us about it.
As a reminder:
1) Cite your article
2) Write a brief (no more than 2 sentence) summary of the article.
3) Write a reflection on the article, sharing about what your learned, what surprised you, and what questions you had. You should also add how it connects to what we have been studying in class.
This assignment is due by Friday, April 23.
Posts
20 comments:
1.) I found my article at http://www.sciencedaily.com. It was called chloroplast. It was written by anonymous.
2.) This article was about chloroplast. It was about all the different parts of chloroplast and how they work.
3.) a) I learned how important chloroplasts are. I also learned how they pertain to photosynthesis. And that they are very similar to mitochondria.
b) What surprised me is how complex they are. They have A.T.P. and N.A.D.P.H. And they have their own D.N.A
c) The only question I have is what exactly is N.A.D.P.H?
d) This connects to our class work because it is about plants. It is about plant cells, and chloroplasts in plant cells.
1) This article was called Half Rooster, Half Hen, by anonymous from sciencenewsforkids.org.
2) This article was about something scientists found that was an animal that was half male and half female.
3) A) I learned that there is such thing as a chicken that was two genders. It was very cool because the male has bulging thighs and muscles on one side, and on the other side is the hen with skinny legs.
b.) I was surprised that there could be such thing as a chicken with two genders. I was also by that scientists say that each cell is independent and becomes male or female depending on the genes inside the body.
c.) I don’t have any questions about this article.
d.) This relates to our class because it was about how the cells relate to this. Cells are independent in this and don’t have to do with each gender.
1. I found my article at http://www.sciencenewsforkids.org/articles/20100303/Feature1.asp. It was
Called making light of sleep. The author was Susan Gaidos
2. The article was about how the author made this glasses that zoomed light through your body that made you alert. The light went through your body and tells it to be awake or sleepy.
3. A. I really liked this article. I liked it because it gave me a lot of good interesting information. The author really gave me a lot of information so that I do not have a lot of questions. It also gave me a lot of information on why it would be important to me.
b. It really interested me that these goggles are really important and helpful. I thought that it was really cool when they said that it would make you alert in school. Even if you are tired it will still make you alert and ready to work. I thought that was really cool and interesting.
c. I have no questions.
d. This had to do with the class because it is about how the cells work with puberty. Also its about how your body including cells respond to when the light goes through your body it wakes you up. That is what we are talking about in class
I read an article from 2009 that was in the New York Times. It talked about how scientists keep studying cells because they want to find out if it can be used for all different kinds of diseases. Like Alzheimer’s, Parkinson’s, and even cancer.
What I found interesting is that it is possible to use stem cells to repair damage in the human body. We do not know how to do that yet but scientists know it is possible and they are trying hard to do it. And there are over 200 different kinds of cells to deal with. Scientists say that someday stem cells will be able to repair cells that are in bad shape. To do research scientists use fertilized cells.
I like that article a lot because I think it was written well and it had a very good topic. I could not find the name of the author of this article.
My article was called Girls Future Depends on Strangers by Jim Dwyer. I found it at www.nytimes.com.
It was about this girl who had leukemia. She had to get chemotherapy and get entirely new blood.
I thought it was very interesting. She had to get a transplant of stem cells. I thought that it was very interesting because it shows how someone that old (6 years) could have something like that happen to them. It surprised me that she needed to start over with entirely new blood. I can't even imagine how they would do something like that, so that is one of my questions. It related to science class because the article says a bit about stem cells and cancerous blood cells.
I read the article From Stem Cell to any Cell at http://www.sciencenewsforkids.org/articles/20051019/Feature1.asp by Emily Sohn.
It is about stem cells being used to repair other human body parts. It said that taking stem cells from Embryos can help other people by repairing other parts, such as the heart.
I thought that this was an interesting article. It would be great if scientists can find cures for things that are incurable now. It explained thing pretty well and I have no questions about it.
Stem Cells
Author Unknown
NewYorkTimes.com
http://topics.nytimes.com/topics/news/health/diseasesconditionsandhealthtopics/stemcells/index.html
This article is about how stem cells can repair damaged cells and possibly cure cancer. President Obama issued an executive order extending the limits of this research set by President Bush, making clear that the government supported stem-cell research.
I learned that stem cells may rapidly repair damaged cells. The only hope for some who are suffering from diseases such as cancer in this case, is using stem cells. This cure is yet to be proven to work though.
What surprises me is that in the article it said that this could be a rapid cure for some diseases. If it truly is rapid then that would be fantastic, do to the fact that radiation and Leucemia do occasionally work yet it is a slow process to finally be pronounced clear of cancer. And sometimes the victim of the disease does not always make it through.
My huge question (as well as a question that I'm sure all the scientist studying this potential cure) is, do or can stem cells cure cancer and other diseases?!
This all connects to the cell topic we have been studying; cells can possibly be cured by stem cells and that cancer are cells as well.
http://esciencenews.com/articles/2009/04/21/antioxidant.found.berries.other.foods.prevents.uv.skin.damage.leads.wrinkles
Antioxidant found in berries and other foods prevents Ultra Violet skin damage in which leads to wrinkles. This magic antioxidant is called ellagic acid and it is found in vegetables and nuts, especially raspberries, strawberries, cranberries and pomegranates.
Ellagic acid in human skin cells protects UV damage by blocking the production of enzymes that break down collagen and also reduces inflammation of the skin. Researchers at Hallym University in the Republic of Korea genetically bred types of mice for this study because of the similarities of their skin to that of humans . The study included 12 mice that were exposed to intervals of ultra violet radiation as found in sunlight. Six mice received applications of the ellagic acid and the other six did not receive any. An additional 6 mice were not exposed to UV light and were not given the acid.
I was surprised that genetically bred mice can have similar skin to humans and how simple foods can naturally help us. This relates to what we are currently discussing in class about cells. For example, how cells can be destroyed, maintained, and replicated.
Questions:
1 - Why aren’t these natural ingredients found in sun tan lotion or anti-aging face creams?
2 - Which has a better effect? Consuming the food or actually applying the food directly on the skin. (ie: mashed raspberries)
3 – If the findings are true, will they do a study involving humans?
4 – Why are people not consuming more of these types of foods?
5 – Would this have the same effect on different age skin? (ie: 10 years old vs 50 years old)
1) I read an article on sciencedaily.com about stem cells.
2) It taught me about differentiation. I also learned what differentiation means.
3) I read a lot about stem cells. It taught me about a process called differentiation. It is the process where cells reprogram their DNA to turn on different combinations of genes. Some scientists are studying to find how this works. If they do find out, it will help scientists understand how stem cells reprogram their genes. I don’t understand how this works though, how cells reprogram their genes. The subject does not really make sense to me. I had to read on to really understand exactly what their question is. They found how stem cells change in such random ways that it confused them. These random changes, to my understanding produce new cells entirely. I was then fascinated. I find it cool how cells work, how they make copies of themselves and how they can change like this. They’re so small and they grow so quickly. Even though I understand that if the process of sperm and egg meeting and creating a baby in nine months ahs to work in order for the human race to survive, I still find it crazy how one cell can turn into one trillion in nine months, without anything going wrong, and then, how this is so common. How there are billions of people in this planet, and this has happened to every single one of them. Its things like this that make me interested in science. I just find it amazing how cells work, and how this process of differentiation works.
1) Drugs and zzzzzz’s
http://www.sciencenewsforkids.org/articles/20091216/Note3.asp
2) People who use ecstasy find it hard to breathe while asleep. When a human stops breathing and starts to gasp for air this is called sleep apnea. Scientists believe that the connection between sleep apnea and ecstasy is neurons, the cells that give signals through the brain and central nervous system some types of neurons make a chemical called serotonin, which helps control many processes in the human body, including mood, appetite and sleep.
3) I found this article very interesting! I feel that’s its just another reason not to take illegal drugs. Ecstasy can make you feel happy and uplifted but the consequences are terrible and you really have to ask yourself, is it really worth it in the long run? I found it really interesting for it really fascinates me what the your body does while your asleep. I liked the way this article was set up for I found it easy to comprehend unlike many other science articles I have formally read. I feel that this connects to the things we've been learning in class because it has to do the workings of cells, which has been the main topic.
1)My article is called Double take,
Emily Sohn, the website is http://www.sciencenewsforkids.org/articles/20081210/Feature1.asp
2)This article is about twins and how they the genes are put together. Also, it tells about how there is Fraternal twins which are almost exactly like regular siblings, and Identical twins look the same.
3)I learned that during reproduction, genes from both parents get scrambled into a new combination of genes that make the child. In ordinary siblings and fraternal twins, each person gets a different mix of genes from there mommy and daddy. That explains why you might have your mommy's nose or your daddy’s eyes, but your sibling has the opposite thing.
I don't really have any questions. This article really explained all that was need(to my satifaction). I really liked it, a lot. This connects to what we have been doing in class because we've been learnig about cells. And I remember, one class we spent a lot on this.
My article is called Urine Test for Kidney Cancer a Step Closer to Development from the website http://www.sciencedaily.com/releases/2010/04/100407134823.htm
This article was long and confusing but luckily they gave a summary at the top. It was about how these researches at Washington University School of Medicine in St. Louis have found pairs of proteins excreted in urine could give them a better and faster diagnosis of the disease.
This was really interesting because my grandma has had breast cancer and although this is for kidney cancer, this proves that we're getting closer and closer to totally getting rid of cancer or managing it better. This has to do with what we're doing because it's talking about proteins which are made from the ribosomes in a cell and because it is about excretion which is what we just finished.
Article:
In cell biology, an organelle is one of several structures with specialized functions, suspended in the cytoplasm of a eukaryotic cell.
Eukaryotes are the most structurally complex known cell type, and by definition are in part organized by smaller interior compartments, that are themselves enclosed by lipid membranes that resemble the outermost cell membrane.
The larger organelles, such as the nucleus and vacuoles, are easily visible with moderate magnification (although sometimes a clear view requires the application of chemicals that selectively stain parts of the cells); they were among the first biological discoveries made after the invention of the microscope.
Summary: It was about cell organelles
Reflection: There really wasn't anything surprising in this aritcle. And I really didn't learn anything new... and I don't have any questions... so I guess it was a review of cells and cell organelles!!!
Sorry!!! I accidentally put the actual article into it!!! OoPs!!!
http://www.sciencenewsforkids.org/articles/20100331/Note2.asp.
The article I read was about a half rooster, half hen. It mainly focus's on what makes birds female or male.
I learned that sometimes genetics can be more hormones in determining the sex of the cell in birds. When half-boy and half-girl chickens are formed they are called gynandromorphs. I thought it was really surprising that this even happened. I thought it was so far fetched that their can be a have female and half male chickens. It was surprising that inside the chicken their were male and female cells scattered around but on one side it was mostly dominated by male cells and the other side mostly dominated of female cells.
I would really like to see more information on this because the scientists are very puzzled about if genes made the chickens or the hormones did.
I think this relates to what we've been studying because we've been researching and learning about cells and the whole article I read was about female and male cells and whether hormones or genes made the chicken the way it is.
I got this article from the new york times it was called Reversal on fuel cells in california. The article was about how they were trying to install fuel cells in california. I learned it's not going to be a cheap. I was confused by all the law issue if they tried to go through it. I could actully not come up with anything that could link to what we were learning in class.
http://sciencenewsforkids.com/articles/20100331/Note1.asp
The article I read is about how polymer remembers the shape it is in. And how the shapes change based on tempature.
I learned that Nafion, a manmade material of thousands of molecules connected together like a chain it is also a synthetic polymer, and synthetic polymer is found in things such as Silly Putty. And it forms in shapes and can remember them so it can form the shape later based on tempature.
What suprised me was that the shape is based on the tempature I thought that Silly Putty just formed because of the material it made of.
I have no questions but it realates to class because polymers make up a chain like thing just like lysosomes, golgi bodies, vacuoles, and other things make up animal of plant cells.
I made spelling mistakes in my other post.
http://sciencenewsforkids.com/articles/20100331/Note1.asp
The article I read is about how polymer remembers the shape it is in. And how the shapes change based on temperature.
I learned that Nafion, a manmade material of thousands of molecules connected together like a chain it is also a synthetic polymer, and synthetic polymer is found in things such as Silly Putty. And it forms in shapes and can remember them so it can form the shape later based on temperature.
What surprised me was that the shape is based on the temperature I thought that Silly Putty just formed because of the material it made of.
I have no questions but it relates to class because polymers make up a chain like thing just like lysosomes, Golgi bodies, vacuoles, and other things make up animal of plant cells.
My article was called Adult Stem Cell from the ScienceDaily website.
It was only about stem cells, and was just an article about them. It had stuff like the ability of a stem cell, and different types of stem cells, along with a lot of other parts.
I learned a lot from this article. It had a lot of information in it, some of it was kind of hard to understand. I didn't like this article that much, actually, and there was a lot of stuff I didn't know, but nothing that was really surprising. One thing I learned was that they use stem cell therapy. I'm not really sure what that is, but I guess it's some kind of therapy that is with stem cells. Anyway, I thought that it was kind of interesting that they used them for that. I think this connects with what we have been studying because it's about cells, and we are learning about cells, and this had a lot of information about one type of cell.
1. The article I found is called "Self-Destructive Behavior in Cells May Hold Key to a Longer Life," by Carl Zimmer.
Here is where I found this article: http://www.nytimes.com/2009/10/06/science/06cell.html
2. This article is about how cells self destruct. Lysosomes and the proteasome (a tiny cluster of proteins), basically eat older parts of the cell. This operation helps to expand your lifespan, because it essentially recreates your organs. Dr. Ana Maria Cuervo (a molecular biologist at Albert Einstein University) states in the article that “Every three days, you basically have a new heart."
3. What I found surprising is that it expands your lifespan when your cells are cannibals and eat themselves. I would think that this would quickly decrease the number of cells you have and cause you to die. I enjoyed this article because I was instantly hooked in, because this was a topic that I had never even thought of before. I don't have any questions yet about this topic, however I am interested in learning more, and I know that if I continue to read articles about this, I will have many questions.
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