Describe the regulation of PFK-1 and PFK-2 and the production of Essay

Describe the regulation of PFK-1 and PFK-2 and the production of fructose-2,6-bisphosphate - Essay ExampleWhen the glucose levels are low, F-2,6-bisP is converted to F-6-P. This reaction is catalyzed by the phosphorylated form of PFK-2 called fructose bisphosphatase-2 (FBPase-2). PFK-2 and fructose bisphosphatase-2 (FBPase-2) are similar bi-functional enzymes. Phosphorylation of PFK-2 is done by protein kinase A (PKA). PKA is activated by increased levels of campy driven by the hormone glucagon during fasting state. The reverse reaction is catalyzed by a phosphatase, which is activated by the hormone insulin. Postprandial, there is an increased level of insulin, which is produced in response to increased glucose levels. During low glucose levels, glucagon increases the levels of cAMP in the liver cells. cAMP then activates PKA, which phosphorylates PFK-2 to form FBPase-2. FBPase-2 in turn converts F-2,6-bisP to F-6-P, this in general is inhibiting the glycolysis (Rider 562).In mus cularity cells too, fructose-6-phosphate is converted to fructose-1,6-bisphosphate, by PFK-1 using adenosine triphosphate. In muscle cells, PFK-1 is activated by AMP. The muscles use up ATP and convert it to AMP. Increased levels of AMP stimulate glycolysis and increases ATP production. However, increased levels of ATP inhibit PFK-1allosterically. High levels of citrate also inhibit PFK-1 in muscle cells. In liver cells the major regulators of PFK-1 are F-2,6-bisP and F-6-P, while in muscle cells, the major regulators of PFK-1 are AMP and ATP. Thus, it can be seen that PFK-1 and PFK-2 are regulated differently in liver cells and muscle

Protest & Reform - Protest Songs From the Civil Rights Movement Essay

Protest & Reform - Protest Songs From the elegant Rights Movement - Essay ExampleOne person might start humming a tune and ultimately those who perceive it would join in, spreading the music across the multitude of people gathered.The leaders of the Civil Rights Movement inspired many of the lyrics apply in the existing gospel songs. King found many of his words from the speeches he had delivered incorporated into the music. When King explained to a group of soulfulnesss that he had woke that morning with freedom on his mind, he was later quoted in a gospel song that had been altered to reflect his comments. The message that he had delivered during his speech had been set to music and circulated end-to-end the communities. Kings oration I Have A Dream (Dlugan, 2009) may have been the inspiration for other songs that promoted the message of freedom.The songs that were used in the Civil Rights Movement stem from Negro Gospel Music. Tunes were jazzed up and lyrics were changed to accommodate the situation. By changing a few words to well-known songs, everyone could participate in a congregational setting and sing in unison at any event. While all of the songs are still strain in worship run across the United States, some of the Civil Rights lyrics have made it into Choral groups and been performed for various audiences by both children and adult groups. The following list of songs were frequently sung during the Civil Rights EraThe number of songs used during the Civil Rights Movement were not limited to just these titles. Many other songs were give rised to capture the attention of the media, promote unity, and create a cohesion between all individuals supporting the Civil Rights Movement. Depending on the situation or event, the song chosen was often determined by an individual in the congregation. One such event found all the prisoners at a jail singing Hold On and they were joined by others who heard and recognized the music. The lyrics to several of the

Water Quality And Waste Water Management Essay Example | Topics and Well Written Essays - 750 words

Water Quality And Waste Water Management - Essay ExampleAs a result these raft become sick, develop serious illnesses, and die from water system borne diseases(Drinking Water and Quality,2001).Inadequate water pinchs to poor sanitation and hygiene and malnutrition posing a major threat to humans causing millions of deaths - particularly of children less than 5 years of age. Water crisis often forces people to use stagnant water for insobriety and washing themselves who then fall victim to many different kind of diseases. 2. Water quality and quantity of concern In the United States most of the deglutition water comes from surface or ground water sources. Researches show surface water from sources like rivers, streams, lakes is under environmental befoulment of algal growth, geologic formations, blow water plant treatment discharges, agricultural discharges etc.The major concern with ground water resources is chemical contamination from arsenic and radon due to natural hydrology , contamination of soil from hazardous waste dumps and leaky underground storage tanks . Water quality concerns in the development countries argon not limited to universe health. Contamination of water by poisonous metals such as arsenic and mercury in mining activities are hazardous to the forest ecosystems and their bio-diversity. The United States is relatively water sufficient at 8,830 m3/person per yr.But a recent report generated by Tetra Tech for Natural Resources Defense Council (NRDC) shows that in the coming decades one away of three countries will face greater risk of water shortages due to global warming and climate change and may hamper economic breeding and agricultural production. In contrast water scarcity had been a matter of concern since decades in developing countries. Shortage of water often leads to water serve diseases as people cannot wash themselves, their homes or clothes regularly. These include eye infections like trachoma and skin diseases such as scabies. Over 200 million people are infected due to ingestion of worm eggs or larvae and the diseases causes 20,000 deaths a year. . In many developing nations women and young girls may take the duty to draw and carry the familys water over miles. In long term carrying such heavy weights may damage their neck, head and spine and lead to problems in pregnancy and child birth (Pruss-Ustun and Bos, 2008). 3. Description of water quality and quantity issues Recent studies have shown that world population had increased 300% in 20th century and water demand 700%.In addition, 2 million tons of human waste is dumped annually into the rivers and streams around the globe. Ownership of water rights is complicated and not always clear. For example, water resources like well may belong to X but the water rights may belong to Y. Y may guide the water for use on land owned by Z (Goff L, 2004). Current capital investment is insufficient to maintain and renew existing facilities for ordinary alre ady having water supply and sanitation coverage. For example, an estimated US$ 52 billion (Bartram and Hutton, 2009) is needed annually and only around 25% of that ?nance is available. Studies have shown that the water supply targets are justified for all regions around the globe, but the sanitation targets are only unambiguously justified for the Americas. This is attributed to two factors the costs of sanitation connections are about three times those of water supply and the benefits per connection are somewhat lower. It is reported that the costs of achieving the sanitation targets by 2015 exceed the benefits for many of the developing regions in Africa and Asia. The majority of

Roots of western culture (Democracy and Imperialism) Essay - 2

Roots of western culture (Democracy and Imperialism) - Essay ExampleTherefore, equating and respect for the law is an important aspect in any nation as they ensure smooth running of government processes.Citizens are presented with freedom to in exercising their rights in a democratic nation. As Pericles mentions, individuals have equal rights and freedoms despite their cultural background, birth or any other discriminatory factor. capital of Greece is an example of a nation where citizens rights and freedom are put into consideration as compared to Sparta where there is no adherence to equality for the law (Thucydides and Pericles 41).According to Pericles, the urban center of Athens enjoys a democratic and free state of government through equal representation of citizens in the government. Happiness has been attributed with individuals being free, and freedom is influenced by courage. The urban center of Athens represents a nation that is organized and effectively manages its int ernal affairs in a transparent and democratic way (Thucydides and Pericles 42). According to the writing, Athens has a well-organized force that protects its people from external

Research Essay Example | Topics and Well Written Essays - 750 words

Research - Essay ExampleLibya had been operating under a 1951 constitutional order, a document which was abolished by Gaddafi outright he rose to power. Gaddafi then put into practice ideologies outlined in his own manifesto, The Green Book. He served until 1977 when he announced that he had officially stepped vote down from power and claimed that he would maintain a ceremonial position (Freedom House, 2010). With Gaddafi remaining a ceremonial leader, Libya was ruled by Peoples Committees as topical anaesthetic governments, and indirectly elected General Peoples Congress as the legislature. thither was also the General Peoples Committee, which served as the executive branch. However, to reckon that Gaddafi maintains full control, he manipulated these structures to suit his political endeavors. US diplomats in Libya described his politics as mastery of tactical maneuvering. Gaddafi, together with his family and close friends controlled almost either aspect of business enterprise s (Wyatt, 2011). Looking at the political landscape in Libya, angiotensin-converting enzyme may think that it is one of the best democracies in the world, being one of the richest countries in Africa. However, behind the outwardly wealthy Arab country there is a lot of human suffering. Gaddafi initiated projects that would provide free medical c are, free education, and free unmortgaged drinking water for all. However, it is claimed that the road network is only good in parts of the country with his support. The free medical care provided is also sub-standard (Freedom House, 2010). There are countries which from outside may seem to have democratic structures in place, hardly which scrutiny may reveal to be undemocratic. They just have these structures to deceive the opposed community. These regimes manipulate everything to ensure they stay in power and control virtually everything (Edwards, 1993). Talking of human rights violations, there are believable sources that cite the ex istence of a crisis. Gaddafi was not only a de-facto leader, but he was also an autocratic one. Dissent to his regime was notoriously termed illegal under Law 75 of 1973. No one was allowed to form a political party, lest they were executed- ranging from public hangings and the images rebroadcasted on public television channels. There were also assassinations of Libyan dissents all over the world by the Libyan intelligence. Reports also cite rapes and indiscriminate jail terms for dissents (Freedom House, 2010). Our question then is what is the best approach to promote democracy and protect human rights in Libya? Many countries have intervened but a lot more needs to be done. The Middle East and Northern Africa regions have actually seen involvement of foreign countries since time immemorial an attempt to promote democracy. However, Islamic leaders have rejected some of them, especially the US, on allegations that they want to rule the Arab world (Ferguson, 2004). There are various interventions, which the international community has made in an attempt to promote democracy in Libya. Countries have not only condemned attacks on civilians but also some of them have also abandoned diplomatic relations with Libya. The recent crisis saw arrest warrants imposed on Gaddafi and his allies by the worldwide Criminal Court. Many countries went as far as supporting the anti-Gaddafi National Transitional Council as the legitimate government. People from other countries have also held

Writer's choice Essay Example | Topics and Well Written Essays - 750 words - 9

Writers choice - Essay ExampleAdditionally, sometimes acts as a little mirror. According to Land, Michael and Dan-Eric, the iris serves as a reflector for the animals because thinly falls on the eye and it is reflected spontaneously (45). In this regard, some animals reflect green light. The reddish appearance of the eye among people is called red-eye emergence. Such effect is associated with the capturing of light, which is reflected from retina. The problem is resolvable through various ways. Light rays usually permeate through the corns of n eye in order to focus clearly on the retina. This causes the light-detecting cells, which are at the back of the eye to responds according. Consequently, the eye retina converts the light rays into electronic pulses, which are able to align with the theoptic nerve. This enhances the creation of visuals images. According to Russell, the process of reddening of the eyes is case to the constriction of the eyes (78). The constriction of the eye s is subject to time and the flash of light overwhelms the retina. The speed of light reflection is high and causes the impact of the red eye-effect. Moreover, the eyes appear red after a flash of light because of the high supply of choroid in blood. Choroid is layer of connective tissues, which occur at the back of the eye (Rakoczy 65). The purpose of the layer is to nourish the retina. The other purpose of the choroid layer is to maintain the red color of the normal eye. It is possible to prohibit the red-eye effect. People should not look at a camera with their naked eyes. There is needed to make the room of snapping brighter than normal. The setting of the camera essential be adjusted. For instance, the anti-red eye effect function must be adjusted. Technology has played a major role in enhancing the reduction of the red-eye effect. advance(a) cameras are sophisticated because they have adequate customizations. For instance, the modern cameras have

Spinach Contamination Essay Example | Topics and Well Written Essays - 750 words

Spinach Contamination - Essay ExampleThis achieved by using strong rationality and sensibility in making of decisions. Should be careful to the problem and collect information from several sources, reasonable in making decisions by applying ethical values and appropriate legal principles in totallyeviating the contamination problem. Moreover, should be intelligent and responsible in the decisions.Facts on resolving this problem are that the health of consumers is at stake. Also, the peoples perception that not all bagged foods necessitate to be cooked under high heat is false. It is assumed that people will continue to consume the fresh spinach plant as before. The problem to be obdurate is that to eradicate the main source of bagged fresh spinach cause E. Coli bacterium.Search narrows Response to new information makes it easier to presume that the sink for E. coli bacterium is found in Greens garden. This is evidenced by the data shown by Centers for Disease Control and Prevent ion (CDC) and the State of California to isolate the cause of the break. I would take samples of the spinach for testing and quarantine the remaining crops.Actions to take attending the spinach products like spinach with dairy products and whole leaf packaged spinach marketed through Tossed Fresh is that all to be withdrawn from the market, isolated and tested. If confirmed that they harbor E. coli they are incinerated. This shows how I fell responsible for this problem and make decisions that are good for everyone.Actions taken with regard to other crops produced is that all will undergo scrutiny for the presence of E. coli inoculums and other disease-causing pathogens. After which they would seek clearance from the US food testing agency to be declared fit for consumption. Seeking of extensive information on proper methods of controlling the spread of E. Coli from reliable sources thus justifies my extensive corrective actions.