Link:http://www.sciencedaily.com/releases/2007/02/070227214350.htm
Summary: Within the cell membrane is a protective barrier, that plays a role in letting some foreign material in the cell. The cell membrane is a specialized environment, it is home to many proteins that enable the cell to interact with the environment. One family of protein is the ,Voltage gated Channels, they are especially important in the conducting signals along and between nerve cells. By opening when they sense a change in the electric field these channels cause ions to rush in or out of the cell, conveying messages.
Questions:
Which components of the cell membrane are being discussed in the article?The Phosophlipids
What is the purpose of the process or component in the article. How the phosplipds allow particles to enter or leave the cell.
List three things you learned from the article in your own words. I learned that phosophlipids were in the cell membrane. I learned that the cell membrane is home to a variety of proteins. I learned that proteins with the cell membrane enable the cell to interact with it's enviroment.
What impact would the absence of this organelle/process have on the cell? The cell would be suseptible to foreing object both harmful and beneficial.
Showing posts with label Jessica Sanders. Show all posts
Showing posts with label Jessica Sanders. Show all posts
Wednesday, December 12, 2007
Over Half The World's Magnolia Species Face Extinction In Their Native Forests
Link: http://www.sciencedaily.com/releases/2007/04/070407170724.htm
Summary: Scientist have revealed that over half of the world's magnolia species face extinction in their native habitats. The Magnolia species has been identified for extinction due to the destruction of habitat to make way for agriculture and over-exploitation. From a total of 245 species of Magnolia more than 131 is in danger worldwide for extinction. The Magnolia are among the most ancient groups of flowering plants and have been long cultivated by mankind.
Question:Why is this species endangered? Because of the destruction of their habitats and over-exploitation.
What could prevent this organism from going extinct?If their habitat wasn't frequently destroyed it would help greatly.
List three things you learned from this article in your own words.I learned that the Magnolia are very old ancient plants. I learned that they are becoming extinct. I also learned that magnolia 's are cultivated by mankind.
What impact would the absence of this organism have on its ecosystem/community? the loss of the Magnolia would threaten the genetic diversity of the species,Magnolias also serve as highly sensitive indicators of the well-being of the forest in which they are located.
Summary: Scientist have revealed that over half of the world's magnolia species face extinction in their native habitats. The Magnolia species has been identified for extinction due to the destruction of habitat to make way for agriculture and over-exploitation. From a total of 245 species of Magnolia more than 131 is in danger worldwide for extinction. The Magnolia are among the most ancient groups of flowering plants and have been long cultivated by mankind.
Question:Why is this species endangered? Because of the destruction of their habitats and over-exploitation.
What could prevent this organism from going extinct?If their habitat wasn't frequently destroyed it would help greatly.
List three things you learned from this article in your own words.I learned that the Magnolia are very old ancient plants. I learned that they are becoming extinct. I also learned that magnolia 's are cultivated by mankind.
What impact would the absence of this organism have on its ecosystem/community? the loss of the Magnolia would threaten the genetic diversity of the species,Magnolias also serve as highly sensitive indicators of the well-being of the forest in which they are located.
Climate Change Will Significantly Increase Impending Bird Extinctions
Link: http://www.sciencedaily.com/releases/2007/12/071206094116.htm
Summary: As the habitats of many animals and plants change, shifting to higher elevations, driven by rising temperatures worldwide. Many animals and plant don't become accustomed to these changes but their habitats shrink to the vanishing point, and the species become extinct. Scientist predict that by 2100,climate change could cause up to 30 percent of land-bird species to go extinct worldwide. The dropping temperatures affect all life but the plants and animals are really going to be affected by these dropping temperatures.
Questions:
What are some ways this phenomenon could be stopped? If people and companies recycle and stop using harmful chemicals that cause the ozone layer to thin. Also if people pay more attention to the greenhouse affect and how it affects the World.
Is there anything you could do to contribute to the reversal: Pay more attention to the affect these rising and dropping temperatures have on our world.
List three things you learned from this article in your own words. I learned that temperature really does play a big role on Earth. I learned that these rising tempertures are predicted to cause 30% of the bird species to become extinct by 2100. I also learned that these rising temperatures will cause many disease to outbreak causing many other problems.
Is there anything you could do to contribute to the reversal: Pay more attention to the affect these rising and dropping temperatures have on our world.
List three things you learned from this article in your own words. I learned that temperature really does play a big role on Earth. I learned that these rising tempertures are predicted to cause 30% of the bird species to become extinct by 2100. I also learned that these rising temperatures will cause many disease to outbreak causing many other problems.
What impact would the continuance of these process have on the biosphere? If temperatures continue to drop many species would become extinct causeing a shift in the ecosystem.
Tissue Engineering For Craniofacial Reconstruction
Link: http://www.sciencedaily.com/releases/2007/03/070323171654.htm
Summary: Tissue engineering has promised to be an alternate solution for the reconstruction of lost or damaged organ and tissues.Tissue engineering plans to replenish the damaged tissues by using substitutes that can survive and function during regeneration and eventually grow into the host tissue.
Questions:
Summary: Tissue engineering has promised to be an alternate solution for the reconstruction of lost or damaged organ and tissues.Tissue engineering plans to replenish the damaged tissues by using substitutes that can survive and function during regeneration and eventually grow into the host tissue.
Questions:
What process is being used in the article?Tissue engineering
What is the purpose of genetic engineering in this article? to regenerate or replenish damaged organs or tissues.
List three things you learned from this article in your own words.
I learned that Tissues can be replenished. I learned that damaged organs can be repaired or regenerated by this process. I learned that the scaffold architecture influence the behavior of cells on tissue -engineering constructs.
What impact would the absence of this process have on humanity? Many people would not survive from transplants because the damaged organs and tissues wouldn't function correctly.
Progress Toward Artificial Photosynthesis?
Link: http://www.sciencedaily.com/releases/2007/03/070312152123.htm
What organelles are involved in this process? The Chloroplast
Summary: In the process know as photosynthesis plants use light as their energy source. Chemist are also trying to be able to use CO2 as a carbon source for their synthetic reactions. Some Scientist have successfully activated CO2 for use in chemical reactions by using a special new type of metal-free catalyst:graphitic carbon nitride.
Questions: What is the chemical equation for photosynthesis?CO2 + 2H2O >> CH2O + O2 + H2O.
What organelles are involved in this process? The Chloroplast
List three things you learned from this article in your own words.I learned that scientist can make artificial CO2. I also learned the equation for photosynthesis. I also learned that sugar,oxygen,and energy is produced from this process.
What impact would the absence of this process have on the biosphere?Plants could't produce sugars that are beneficial to their health and the world so life would not survive.
Tuesday, December 11, 2007
Flowering Plants Evolved Very Quickly Into Five Groups
Link:http://www.sciencedaily.com/releases/2007/11/071126170900.htm
Summary: Scientist report that the two largest group of flowering plants are closer to each other than any other major lineages. These two flowers are the Monocots and the Eudicots. History also showed that diversity of flowering plants took place in a short periods, less than 5 million years ago, resulted in all five major lineages of flowering plants that exist today.
Questions:
How is natural selection or evolution illustrated in this article?
It shows the evolution of the biggest five flowering plants group that originated from the same species.
How does this support Darwin original findings?
It supports the theory Darwin came up with because Darwin thought that it was a mystery how all plants were related and evolved so quickly to produce some of the largest groups of plant.
List three things you learned from this article in your own words.
I learned that plants have been around for at least 130 million years. I learned that their are about 400,000 species of flowering plants. I learned tha five of the largest plant groups originated from one species of plants about 5 million years ago.
What impact would the absence of this organism have on the ecosystem?
Many small animals that eat plants or reproduce by pollination wouldn't survive neither would the ecosystem.
Summary: Scientist report that the two largest group of flowering plants are closer to each other than any other major lineages. These two flowers are the Monocots and the Eudicots. History also showed that diversity of flowering plants took place in a short periods, less than 5 million years ago, resulted in all five major lineages of flowering plants that exist today.
Questions:
How is natural selection or evolution illustrated in this article?
It shows the evolution of the biggest five flowering plants group that originated from the same species.
How does this support Darwin original findings?
It supports the theory Darwin came up with because Darwin thought that it was a mystery how all plants were related and evolved so quickly to produce some of the largest groups of plant.
List three things you learned from this article in your own words.
I learned that plants have been around for at least 130 million years. I learned that their are about 400,000 species of flowering plants. I learned tha five of the largest plant groups originated from one species of plants about 5 million years ago.
What impact would the absence of this organism have on the ecosystem?
Many small animals that eat plants or reproduce by pollination wouldn't survive neither would the ecosystem.
Flowering Plants Evolved Very Quickly Into Five Groups
Link:http://www.sciencedaily.com/releases/2007/11/071126170900.htm
Summary: Scientist report that the two largest group of flowering plants are closer to each other than any other major lineages. These two flowers are the Monocots and the Eudicots. History also showed that diversity of flowering plants took place in a short periods, less than 5 million years ago, resulted in all five major lineages of flowering plants that exist today.
Questions:
How is natural selection or evolution illustrated in this article?
It shows the evolution of the biggest five flowering plants group that originated from the same species.
How does this support Darwin original findings?
It supports the theory Darwin came up with because Darwin thought that it was a mystery how all plants were related and evolved so quickly to produce some of the largest groups of plant.
List three things you learned from this article in your own words.
I learned that plants have been around for at least 130 million years. I learned that their are about 400,000 species of flowering plants. I learned tha five of the largest plant groups originated from one species of plants about 5 million years ago.
What impact would the absence of this organism have on the ecosystem?
Many small animals that eat plants or reproduce by pollination wouldn't survive neither would the ecosystem.
Summary: Scientist report that the two largest group of flowering plants are closer to each other than any other major lineages. These two flowers are the Monocots and the Eudicots. History also showed that diversity of flowering plants took place in a short periods, less than 5 million years ago, resulted in all five major lineages of flowering plants that exist today.
Questions:
How is natural selection or evolution illustrated in this article?
It shows the evolution of the biggest five flowering plants group that originated from the same species.
How does this support Darwin original findings?
It supports the theory Darwin came up with because Darwin thought that it was a mystery how all plants were related and evolved so quickly to produce some of the largest groups of plant.
List three things you learned from this article in your own words.
I learned that plants have been around for at least 130 million years. I learned that their are about 400,000 species of flowering plants. I learned tha five of the largest plant groups originated from one species of plants about 5 million years ago.
What impact would the absence of this organism have on the ecosystem?
Many small animals that eat plants or reproduce by pollination wouldn't survive neither would the ecosystem.
New Insight Into HIV Infection
Link: http://www.sciencedaily.com/releases/2007/05/070504131255.htm
Summary:Scientist have found a new way to fight against AIDS. Scientist learned that HIV infects the nucleus of a cell by carrying its DNA to the cell nucleus. The viral DNA mix with the cell DNA, this creates more proteins that make new viruses,and then spread to other cells. The way in which HIV is spread throughout the cell by entering the nucleus may provided a way of limiting the spread of the virus to other cells.
Questions:
What is the major function of this cell's organelle? To carry the DNA of the cell and instructions of the cell.
Which cell types have this organelle? Eukaryote Cells
List three things you learned from this article in your own words. I learned that with father studying the HIV may never turn to AIDS in some cases. I learned that HIV spreads by making proteins that infect the cells. I learned that by silencing certain genes scientist decreased the production of the HIV producing proteins by three times less.
What impact would the absence of this organelle have on the cell? The cell would not function or have codes for the DNA structure.
Summary:Scientist have found a new way to fight against AIDS. Scientist learned that HIV infects the nucleus of a cell by carrying its DNA to the cell nucleus. The viral DNA mix with the cell DNA, this creates more proteins that make new viruses,and then spread to other cells. The way in which HIV is spread throughout the cell by entering the nucleus may provided a way of limiting the spread of the virus to other cells.
Questions:
What is the major function of this cell's organelle? To carry the DNA of the cell and instructions of the cell.
Which cell types have this organelle? Eukaryote Cells
List three things you learned from this article in your own words. I learned that with father studying the HIV may never turn to AIDS in some cases. I learned that HIV spreads by making proteins that infect the cells. I learned that by silencing certain genes scientist decreased the production of the HIV producing proteins by three times less.
What impact would the absence of this organelle have on the cell? The cell would not function or have codes for the DNA structure.
Monday, December 10, 2007
Improving Liver Cancer Diagnosis
http://www.sciencedaily.com/releases/2007/10/071005104036.htm
Summary: Proteins have been found to improve the diagnosis of heptocellular carcinoma, a type of liver cancer. This type of liver disease causes many deaths annually. This caused for scientist to locate a protein within the body that would indicate the presence of the disaease. Scientist located to proteins that would improve the diagnosis of the disease.
Questions:
What is the major role of this molecule in the cell? This molecule helps identify the presence of liver cancer.
List three things you learned from this article in your own words. I learned that proteins can mark liver disease markers. I learned that protins is vital for the diagnosis. I learned that proteins can save many lives.
What impact would the absence of this molecule have on the cell? Many people will have the disease and not know they have it and many peoplke will be killed.
Summary: Proteins have been found to improve the diagnosis of heptocellular carcinoma, a type of liver cancer. This type of liver disease causes many deaths annually. This caused for scientist to locate a protein within the body that would indicate the presence of the disaease. Scientist located to proteins that would improve the diagnosis of the disease.
Questions:
What is the major role of this molecule in the cell? This molecule helps identify the presence of liver cancer.
List three things you learned from this article in your own words. I learned that proteins can mark liver disease markers. I learned that protins is vital for the diagnosis. I learned that proteins can save many lives.
What impact would the absence of this molecule have on the cell? Many people will have the disease and not know they have it and many peoplke will be killed.
Emphysema
Link: http://www.sciencedaily.com/articles/e/emphysema.htm
Summary: Emphysema is a chronic lung disease caused by exposure to toxic chemicals or long term tobacco smoke. This disease is characterized by the loss of elasticity of lung tissue,destruction of structures, and destruction of capillaries feeding the aveoli. Result of this is the small airways collapse during expiration, leading to an obstructive form of lung disease.
Questions:
What are the symptoms of this disease?Shortness of breath on exertion,hyperventilation,and an expanded chest.
How is this disease passed from person to person? By second hand smoke over long periods of time or exposure to relaesed dangers toxics by companies.
List three things you learned from this article in your own words. I learned that smoke and toxics are very dangerous and leads to many poblems. I learned that Emphysema is a lung disease. I also learned that this disease is preventable in most ways and is a lifestyle disease.
What impact does this disease have on the US economy? This disease has a huge impact on the US because a lot of money is spent annualy trying to controll the disease. It also brings many restrictions on many companies that release these toxic chemicals that cause the disease.
Summary: Emphysema is a chronic lung disease caused by exposure to toxic chemicals or long term tobacco smoke. This disease is characterized by the loss of elasticity of lung tissue,destruction of structures, and destruction of capillaries feeding the aveoli. Result of this is the small airways collapse during expiration, leading to an obstructive form of lung disease.
Questions:
What are the symptoms of this disease?Shortness of breath on exertion,hyperventilation,and an expanded chest.
How is this disease passed from person to person? By second hand smoke over long periods of time or exposure to relaesed dangers toxics by companies.
List three things you learned from this article in your own words. I learned that smoke and toxics are very dangerous and leads to many poblems. I learned that Emphysema is a lung disease. I also learned that this disease is preventable in most ways and is a lifestyle disease.
What impact does this disease have on the US economy? This disease has a huge impact on the US because a lot of money is spent annualy trying to controll the disease. It also brings many restrictions on many companies that release these toxic chemicals that cause the disease.
Enzyme Linked To Breast Cancer Malignancy
Link: http://www.sciencedaily.com/releases/2007/11/071129113755.htm
Summary: When using mice that had pre-existing cancers the McGill team disabled the function of the enzyme, FAK , in the mammory gland. When they isloated FAK they stopped the progression of the tumor. This showed that FAK is vital in the Progression of the tumor from premalignant to a malignant state in the mammarry tumor system . This discovery was also linked to an earlier discovery that the enzyme beta1-integrin was similary vital in the initiation of tumor growth and development of breast cancer in the mice.
Questions:
What reactions does this enzyme catalyze? It catalyze the growth of the tumor in the mammary glands, and in breast cancer.
How is the cell affected if this enzyme is removed? It stopped the tumor growth in the cancers.
List three things you learned from this article in your own words. I learned that their are many factors when dealing with cancers. I learned that what is healthy for you is also dangers to you. I also learned that many mice loose thier life when studying human diseases.
What impact would the absence of this molecule have on the cell? It would make the tumor grow and can also catalyze the tumor.
Summary: When using mice that had pre-existing cancers the McGill team disabled the function of the enzyme, FAK , in the mammory gland. When they isloated FAK they stopped the progression of the tumor. This showed that FAK is vital in the Progression of the tumor from premalignant to a malignant state in the mammarry tumor system . This discovery was also linked to an earlier discovery that the enzyme beta1-integrin was similary vital in the initiation of tumor growth and development of breast cancer in the mice.
Questions:
What reactions does this enzyme catalyze? It catalyze the growth of the tumor in the mammary glands, and in breast cancer.
How is the cell affected if this enzyme is removed? It stopped the tumor growth in the cancers.
List three things you learned from this article in your own words. I learned that their are many factors when dealing with cancers. I learned that what is healthy for you is also dangers to you. I also learned that many mice loose thier life when studying human diseases.
What impact would the absence of this molecule have on the cell? It would make the tumor grow and can also catalyze the tumor.
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