During the summer of 2010, very large forest fires occurred in western Russia. At one point, the cloud of smoke spread over 1000 miles (approximately 1600 km), enveloping a number of cities
The smoke was thicker than any you would see in a tobacco store! Based on the information in this chapter alone, why do you think the daily death rate due to heart disease in Moscow doubled during that time?
The smoke plumes may have contained some carbon monoxide, which is one of the more harmful components of cigarette smoke. Carbon monoxide lowers the oxygen-carrying capacity of red blood cells, so all organs, including the heart, receive less oxygen. The stress that carbon monoxide places on the heart could account for much of the effect. (Russian health officials stated at the time that the amount of smoke from the fires was equivalent to what a person would inhale from smoking eight packs of cigarettes a day!)
You might also like to view...
List and briefly explain the three ways in which genetic variability is increased during meiosis
What will be an ideal response?
The retinoblastoma protein (pRB), like p53, serves as a(n) ________ in regulating the cell cycle
A) up regulator B) tumor suppressor C) tumor enhancer D) oncogene E) pseudooncogene
It has been discovered that enzyme-like catalysis can be carried out not only by enzymes but also by
A. sugars. B. RNA. C. DNA. D. steroids. E. phospholipids.
What maintains cell shape, anchors organelles in place, and moves materials within a cell?
A) cytoskeleton B) hydrogen bonds C) Golgi complex D) cilia