ICE Paper Essay Example | Topics and Well Written Essays - 500 words - 1

ICE Paper - Essay Example In fact, he estimated that 70% of the oil is made up of imports. The fact that oil is the key driver of the American economy, it cannot go without saying that a significant share of our energy resources is derived from other countries. This is not only detrimental to our economy, but to the environment and national security as well. Pickens comes up with a raft of proposals that will help this country to reduce its foreign oil imports by a third. He believes that this is a necessary course since the global demand for oil is increasing by the day if the emergence of China and India is anything to go by. To begin with, Pickens proposes the use of Wind Power. This is because he considers wind to be not only renewable and clean, but it is 100% domestic as well. In addition, America has the largest wind reserves as opposed to any other country across the globe. By doing this, it will take the â€Å"energy generated by wind and using it to replace a significant percentage of the natural gas that is now being used to fuel our power plants.† In other words, the use of wind energy will go a long way in ensuring that the natural gas is solely used as a transportation fuel. More often than not, natural gas is considered as the form of energy that can sustain the transportation sector by virtue of it being clean, ch eap, and in abundance. By taking this route, it will drive more efforts towards the development and manufacture of natural-gas-powered vehicles (Levi, 56). Furthermore, our dependence on wind energy will help to plug the deficit of unemployment. In the process, this new development will be a major investment â€Å"in the heartland, creating room for hundreds of thousands of jobs† in the next few decades. This move will create an avenue for use of other sources of energy such as biomass, solar, and ethanol. Taking a step in this direction will save the country from

RELATE THE STRUCTURE OF EUKARYOTIC AND PROKARYOTIC CELL COMPONENTS AND Assignment

RELATE THE STRUCTURE OF EUKARYOTIC AND PROKARYOTIC CELL COMPONENTS AND ORGANELLES - Assignment Example The function of the plasma membrane in prokaryotes is to lend protection and act as a permeability barrier. In Eukaryotes the plasma membrane also consists of phospholipid layers and performs the same function as that in the prokaryotes. However, in prokaryotes, the structure of plasma membrane consists of hopanoids which are taken to be structural equivalent of sterols found in the Eukaryotic plasma membrane (Rohmer et al, 1984). Hopanoids help prokaryotic cells to adjust cell permeability and adapt to environmental conditions. The most basic difference between Eukaryotic and Prokaryotic cells lies in the position of the DNA and this is basically reflected in their names. In a Eukaryotic cell most of DNA is in the cell organelle called nucleus which is bounded by a double membrane each of which is made up of phospholipids and proteins. The nucleus is the largest organelle in the eukaryotic cell. In case of a Prokaryotic cell, the DNA material lies concentrated in a region known as nucleiod which is not membrane bound. Ribosomes are present in prokaryotic as well as Eukaryotic cells. This cell organelle is slightly smaller in the Prokaryotes than in the Eukaryotes. In Prokaryotes, the ribosome is 70S and is about 2700kd in mass. The Eukaryotic ribosome are slightly larger and consist of 2 sub-units- a larger 60S subunit and a smaller 40S subunit which come together to form a 80S unit which is heavier at 4200kd (Stryer et al, 2002). Even though ribosome is involved in protein synthesis, the Eukaryotic protein synthesis is different from prokaryotic protein synthesis since in Eukaryotes the initiator tRNA is methionine while in case of Prokaryotes the initiator is a specialized tRNA. Prokaryotes lack mitochondria which in Eukaryotes serve as site of cellular respiration and plays pivotal role in metabolism. The structure of the mitochondria in a Eukaryotic cell is sausage shapes, with smooth outer membrane but folded inner