|
|
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.
![Two general models for the interconversion of inactive and active forms of a protein during cooperat](https://biology-forums.com/gallery/47/medium_9828_12_01_13_10_51_08.jpeg)
![This depiction breaks stereotypes, but is historically accurate. Shown here is an Iroquois fort. Can ...](https://biology-forums.com/gallery/27/medium_660366_14_04_17_2_21_30_278052227.png)
![The cystic fibrosis protein is a membrane protein. The CFTR protein is located in the plasma membran](https://biology-forums.com/gallery/44/medium_6_25_01_22_7_04_28_44145484.jpeg)