Link- http://www.sciencedaily.com/releases/2007/12/071205131149.htm
Summary- Healthy ecosystems that provide people with essential natural goods and services often overlap with regions rich in biological diversity, underscoring that conserving one also protects the other, according to a new study.
Questions-What kind of relationship is being described in the article? the relationship of healthy ecosystems and natural goods
Describe the niche being discussed in the article. what humans do to survive in this ecosystem
List three things you learned from this article in your own words. many people are trying to make their places ecologically better, it improves well-being, the world's ecosystem services cost alot of money
What impact would the topic of the article have on the biosphere? how conservation could help improve your ecosystem and you can live better
Showing posts with label Brendan Jones. Show all posts
Showing posts with label Brendan Jones. Show all posts
Tuesday, December 11, 2007
Stretching DNA To The Limit
Link- http://www.sciencedaily.com/releases/2007/04/070424091417.htm
Summary- It has long been known that UV light can damage DNA, reducing its ability to replicate and interact with proteins, and often resulting in the development of skin cancers. However, not much is known about how the elasticity of DNA strands is altered upon exposure to UV light. Now a group of researchers at Duke University have developed a method to measure changes in the mechanical properties of DNA upon irradiation with UV light.
Questions-What are the major functions of nucleic acids in the cell? to tell the cell what to do
What are the differences in RNA and DNA? DNA contains Thymine, RNA contains Uracil
List three things you learned from this article in your own words. dna tell cell what to, UV light can damage dna, scientist can stretch dna while measuring the forces generated
What impact would the absence of this organelle have on the cell? cells would just float around in the body and be useless
Summary- It has long been known that UV light can damage DNA, reducing its ability to replicate and interact with proteins, and often resulting in the development of skin cancers. However, not much is known about how the elasticity of DNA strands is altered upon exposure to UV light. Now a group of researchers at Duke University have developed a method to measure changes in the mechanical properties of DNA upon irradiation with UV light.
Questions-What are the major functions of nucleic acids in the cell? to tell the cell what to do
What are the differences in RNA and DNA? DNA contains Thymine, RNA contains Uracil
List three things you learned from this article in your own words. dna tell cell what to, UV light can damage dna, scientist can stretch dna while measuring the forces generated
What impact would the absence of this organelle have on the cell? cells would just float around in the body and be useless
'Wiring Up' Enzymes For Producing Hydrogen In Fuel Cells
Link- http://www.sciencedaily.com/releases/2007/11/071119100338.htm
Summary- Researchers in Colorado are reporting the first successful "wiring up" of hydrogenase enzymes. Those much-heralded proteins are envisioned as stars in a future hydrogen economy where they may serve as catalysts for hydrogen production and oxidation in fuel cells
Questions- What reactions does this enzyme catalyze? increase in hydrogen for cell
How is the cell affected if this enzyme is removed? no good connections with fuel cell components
List three things you learned from this article in your own words. scientist mess with alot of things, enzymes help the cell and precious metals are needed for this process
What impact would the absence of this molecule have on the cell?
Summary- Researchers in Colorado are reporting the first successful "wiring up" of hydrogenase enzymes. Those much-heralded proteins are envisioned as stars in a future hydrogen economy where they may serve as catalysts for hydrogen production and oxidation in fuel cells
Questions- What reactions does this enzyme catalyze? increase in hydrogen for cell
How is the cell affected if this enzyme is removed? no good connections with fuel cell components
List three things you learned from this article in your own words. scientist mess with alot of things, enzymes help the cell and precious metals are needed for this process
What impact would the absence of this molecule have on the cell?
Cellular Respiration
Link-http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CellularRespiration.html
Summary- Cellular respiration is the process of oxidizing food molecules, like glucose, to carbon dioxide and water. The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the cell.The process occurs in two phases:
glycolysis, the breakdown of glucose to pyruvic acid
the complete oxidation of pyruvic acid to carbon dioxide and water
Questions- What is the chemical equation for cellular respiration? C6H12O6 + 6O2 --> 6CO2 + 6H2O + energy
What organelles are involved in this process?
Some biochemical pathways that produce very little ATP occur in the cytoplasm
Other pathways that produce a great deal of ATP occur in the mitochondrion
List three things you learned from this article in your own words. mitochondrion has much to do with cellular respiration, makes energy for cell, cytoplasm also makes ATP
What impact would the absence of this process have on the biosphere?
Summary- Cellular respiration is the process of oxidizing food molecules, like glucose, to carbon dioxide and water. The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the cell.The process occurs in two phases:
glycolysis, the breakdown of glucose to pyruvic acid
the complete oxidation of pyruvic acid to carbon dioxide and water
Questions- What is the chemical equation for cellular respiration? C6H12O6 + 6O2 --> 6CO2 + 6H2O + energy
What organelles are involved in this process?
Some biochemical pathways that produce very little ATP occur in the cytoplasm
Other pathways that produce a great deal of ATP occur in the mitochondrion
List three things you learned from this article in your own words. mitochondrion has much to do with cellular respiration, makes energy for cell, cytoplasm also makes ATP
What impact would the absence of this process have on the biosphere?
Rare Tibetan Antelope Listed As Endangered
Link-http://www.sciencedaily.com/releases/2006/03/060330162747.htm
Summary- The Bronx Zoo-based Wildlife Conservation Society (WCS) today applauded a decision today by the U.S. Fish and Wildlife Service to list the Tibetan antelope, also known as "chiru," as an endangered species. Through a series of expeditions to China's windswept Chang Tang Reserve over the past two decades, WCS had played a key role in sounding the alarm about the dramatic decline of this elegant animal due to poaching.
Questions-
Why is this species endangered? from poaching
What could prevent this organism from going extinct? less poaching and laws passed to stop the hunting of this animal
List three things you learned from this article in your own words. if animals go extinct many things could go wrong, fur is worth $15,000 on the black market, laws can be passed to stop the hunting of endabgered species
What impact would the absence of this organism have on its ecosystem/community? less ground would be fertilized and ground would be useless dirt
Summary- The Bronx Zoo-based Wildlife Conservation Society (WCS) today applauded a decision today by the U.S. Fish and Wildlife Service to list the Tibetan antelope, also known as "chiru," as an endangered species. Through a series of expeditions to China's windswept Chang Tang Reserve over the past two decades, WCS had played a key role in sounding the alarm about the dramatic decline of this elegant animal due to poaching.
Questions-
Why is this species endangered? from poaching
What could prevent this organism from going extinct? less poaching and laws passed to stop the hunting of this animal
List three things you learned from this article in your own words. if animals go extinct many things could go wrong, fur is worth $15,000 on the black market, laws can be passed to stop the hunting of endabgered species
What impact would the absence of this organism have on its ecosystem/community? less ground would be fertilized and ground would be useless dirt
Scientists Successfully Simulate Photosynthesis And Design A Better Leaf
Link: http://www.sciencedaily.com/releases/2007/11/071109123201.htm
Summary- University of Illinois researchers have built a better plant, one that produces more leaves and fruit without needing extra fertilizer. The researchers accomplished the feat using a computer model that mimics the process of evolution. Theirs is the first model to simulate every step of the photosynthesis process.
Questions- What is the chemical equation for photosynthesis?
6CO2 + 6H2O ------> C6H12O6 + 6O2
What organelles are involved in this process? Most photosynthesis occurs in a plant’s leaves.
List three things you learned from this article in your own words. that scientist can alter plants, where photosynthesis mainly occurs and how environmental changes effect photosynthese
What impact would the absence of this process have on the biosphere? better land because this plant doesn't use all of nutrients out of the earth like normal plants do
Summary- University of Illinois researchers have built a better plant, one that produces more leaves and fruit without needing extra fertilizer. The researchers accomplished the feat using a computer model that mimics the process of evolution. Theirs is the first model to simulate every step of the photosynthesis process.
Questions- What is the chemical equation for photosynthesis?
6CO2 + 6H2O ------> C6H12O6 + 6O2
What organelles are involved in this process? Most photosynthesis occurs in a plant’s leaves.
List three things you learned from this article in your own words. that scientist can alter plants, where photosynthesis mainly occurs and how environmental changes effect photosynthese
What impact would the absence of this process have on the biosphere? better land because this plant doesn't use all of nutrients out of the earth like normal plants do
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