Biology Essays and Term Papers

and women. An estimated 169,400 new cases of lung cancer and an estimated 154,900 deaths from lung cancer will occur in the United States during 2004. The rate of lung cancer cases appears to be dropping among white and African-American men in the…

animals we eat, how safe are we? Are we actually benefiting from these changes? Genetically modified food is an example of biotechnology in agriculture, and one which has brought quite a controversy to the scientific, and not-so-scientific world.…

consists of tendons, ligaments and cartilage, which are arranged into a solid, rigid, structure that supports and protects our body. Bones develop during our lifetime, causing growth and change in appearance. The skeleton is necessary for survival.…

are well known. Scientists are excited a out the prospects for new medications, new agricultural crops, and new means of solving environmental problems. On the other hand, the potential risks of genetic engineering are also well recognized. Scientists…

the maintenance of inorganic ion homeostasis within the cell by selectively importing and exporting ions across the plasma membrane. These proteins form a hydrophobic pore across the membrane to connect the extra cellular matrix with the cytosol of…

is to investigate the properties of an enzyme - substrate reaction 2.Hypothesis Hydrogen peroxide is a very reactive compound that can be used for a variety of reactions including bleaching and disinfecting minor wounds. Acting as an oxidizing…

saw bacteria in dental plaque, making him the first oral microbiologist and biofilm experimenter back in the 1600s. Biofilms form when bacteria adhere to surfaces and begin to excrete a slimy, glue-like substance that can anchor them to all…

Mason University, takes a couple night classes and must walk a ways, on the dark, often desolate, path that leads from her car to class. One daunting evening she is abducted, raped, and to her distress impregnated. On the other side of the diminutive…

a busy day of school and after school activities. You're tired and you know you could use some sleep, but there's still a matter of doing your homework or watching that video that's due back at the video store. So, instead of getting your sleep,…

What is the effect of Lead ions on the enzyme Amylase. And does it have an inhibitory effect, which causes the substrate, in this case starch to be blocked from the reaction process in the enzyme catalyst. Also is the effect reversible or irreversibl…