... other organelles are stored. There are six main organelles in the cytoplasm. First, the mitochondria, which provides energy to the cell through ATP and respiration. Then there is the endoplasmic reticulum which separates parts of the cell. Then there is the Golgi apparatus which is used for sorting, storing, and secretion for the cell. Next are lysosomes, which hydrolyze macromolecules. Then there are centrioles that play a major role in cell division. And lastly there are vacuoles which have a variety of storage functions. The plant cell is similar in most ways. The only really big differences between the plant cell and the animal cell are as follows. The fi ...
Words: 358 - Pages: 2
... in the structure of trees and other forest vegetation(4). The same occurs when forest stands are managed by humans. Unless future credible research indicates otherwise, effort should be made to manage a wide range of forest structures. Maintaining diversity would be best served by using a broader range of management tools. Those would include harvesting on federal land - not simply thinning - and increasing the commitment to old-growth attributes on private forest land through techniques such as retaining large trees and snags. As long as federal lands are substantially committed to providing late successional habitat, private forest land can be s ...
Words: 931 - Pages: 4
... up certain substances that travel through the Glomeruli capillary wall and enter the proximal kidney tubules, creating an ultra filtration systems, which eventually becomes urine. Substances that do not filter through the Glomeruli wall continue through the Kidneys blood supply, allowing it to reenter the renal vein and inferior vena cava. On a normal basis only small molecular weights (such as sugars, fatty acids, water, etc.) Are filtered at the renal Glomeruli. Larger waste such as proteins and hormones do not normally filter through the glomular barrier. If the Glomeruli are damaged by an infection than substances, which are not normally filtered, will e ...
Words: 566 - Pages: 3
... out accurately using a weighting bottle and a balance. Then thirty centimetres cubed of 2 molar HCL was measured using a measuring cylinder. The acid was then placed into the polystyrene cup and its temperature was taken and recorded using the thermometer. The pre-weighted sodium hydrogencarbonate was then added to the solution, and the final temperature was recorded. The contents of the cup were then emptied out and the cup was washed out with water and then thoroughly dried. This was done three times for the sodium hydrogen carbonate so that I could remove any anomalies that were obtained. The experiment was then repeated in exactly the same manner except sodiu ...
Words: 627 - Pages: 3
... in the introduction of the first small hard disk drives. The first 5.25-inch hard disk drives packed 5 to 10 MB of storage, the equivalent of 2,500 to 5,000 pages of double-spaced typed information, into a device the size of a small shoebox. At the time, a storage capacity of 10 MB was considered too large for a so-called "personal" computer. The first PCs used removable floppy disks as storage devices almost exclusively. The term "floppy" accurately fit the earliest 8-inch PC diskettes and the 5.25-inch diskettes that succeeded them. The inner disk that holds the data usually is made of Mylar and coated with a magnetic oxide, and the outer, plastic cover, b ...
Words: 988 - Pages: 4
... tree line going south. They live in all provinces and territories except Prince Edward Island, where heavy de-forestation has happened and preferably away from brown bears (larger competitors). The only main risk for black bears are poachers who sell their parts illegally to the Asian medicinal market. In northern areas of Canada, the bear undergoes a remarkable metabolic transformation as it prepares for hibernation. Hibernation is an energy-saving process bears have developed to let them survive for long periods when there is insufficient food available to maintain their body mass. When they stop eating and become increasingly lethargic, the bear will enter a ca ...
Words: 514 - Pages: 2
... reason our Earth is getting hotter is that human activities are emitting too much carbon dioxide into the atmosphere. The radiation from the sun gets trapped in the bag of carbon dioxide that surrounds our earth. One main reason for the problem of global warming is the burning of fossil fuels. Fossil fuels are coal, oil and natural gases. We use these fuels to run factories, power plants, cars, trucks, buses, air conditioning and etc. The people of the earth are putting 5.5 billion tons of carbon, in the form of carbon dioxide in the air every year! Seventy five percent of this is fossil fuels. 3. Impact Causing Global Change For many years, scientists have ...
Words: 2327 - Pages: 9
... water. are very inexpensive. It does not take a very sophisticated industrial base to produce lethal chemicals. This makes it a viable means of warfare for Third World countries. The use of chemical weapons by Iraq and Libya in 1988 reinforces the danger that these weapons will spread (Cass 1996). Not only are these weapons cheap, but they are very effective. Defense Secretary William S. Cohen held up a five-pound bag of sugar on national television last month to show how, with an equivalent amount of anthrax, Iraq could eliminate at least half the population of Washington. The US Law Enforcement Assistance Administration reported in March 1977 that a sin ...
Words: 1582 - Pages: 6
... Trogan horse virus (named after the Greek myth) hides within or is designed to look like s legitimate program. Some viruses interrupt processing by freezing a computer system temporarily and then displaying sounds or messages. Other viruses contain time bombs or logic bombs. A time bomb is a program that performs an activity on a particular date. A logic bomb is a program that performs an activity when a certain action occurs, such as an employee being terminated. A worm, which is similar to a virus, copies itself repeatedly until no more memory of disk space remains. To find , anti-virus programs have been developed. Besides detecting viruses, anti-virus pr ...
Words: 454 - Pages: 2
... them. For water is an immense natural resource that rests not only around Canadians, but beneath their feet as well. In no region is this more pervasive than in the province of Ontario. Ontarians walk above groundwater supplies everyday, without the slightest notion of the extent to which they rely on this over-used and exploited natural resource. Canada as a whole "has far more water underground than on the surface - perhaps 65 times more than in surface lakes and streams",(Gorrie 70-71), and the same holds true for Ontario. Outside of the major urban centres which rely predominantly on surface sources for their water, most of Ontario relies on groundwater supplie ...
Words: 1970 - Pages: 8
