THE DRY CELL BATTERY CHEMISTRY: A current is produced basically by the flow of electrons. The dry cell, or Leclanche battery works by creating two electrochemically different ends (an anode and a cathode) so current passes through when a complete circuit is connected. This involves non-renewable c...

Atomic Absorption Spectrophotometers An atomic absorption spectrophotometer consists of many complex and integral pieces. These components work together to help determine the concentrations of many different elements in various products to a very precise and accurate value. The instrumentation...

The lymphatic system Although blood is thought to be the main medium of transport for material around the cell, there is another fluid that serves the cells and is a vital link between the cells and the blood circulation. About 90% of the fluid that leaks out of the capillaries eventually seeps b...

Unit 2 Biology- FUNCTIONING ORGANISMS SAC- 'Essay on transport systems' "Transport systems play an essential role in the survival of flowering plants and mammals" Transport systems play an essential role in the survival of flowering plants and mammals. These organisms re...

Water 's presence in the Living World Water is essential in the living world, it is the main component in glacier, sea and present predominantly in living cells. Water is used for drinking, washing and irrigating crops and watering livestock. It also acts as a thermal regulator by smoothing o...

The bubonic plague got its name because of the symptoms of the disease. Bubonic plague causes very painful, swollen lymph nodes called buboes. These swollen lymph nodes are mostly found first in the groin area, which is "boubon" in Latin. The disease became associated with the term "plague" beca...

INCIDENCE Breast cancer is the most common malignancy among women and has the highest fatality rate of all cancers affecting this sex. It is the leading cause of death among women aged 35-54. In 1999 an estimated 175,000 women were diagnosed with breast cancer. That is one woman every three minutes....

INCIDENCE Breast cancer is the most common malignancy among women and has the highest fatality rate of all cancers affecting this sex. It is the leading cause of death among women aged 35-54. In 1999 an estimated 175,000 women were diagnosed with breast cancer. That is one woman every thre...

*INFECTIOUS MONUCLEOSIS* I Choose Mononucleosis for my disease report because it is a contagious illness caused by the Epstein-Barr virus (EBV), mainly know as the kissing disease. Mononucleosis really interested me because the disease is mainly found in people of the ages 15 - 24 which is t...

 The body normally forms new cells only when they are needed to replace old or damaged ones. If something happens to disturb this controlled process, abnormal or excessive cells are produced. When this occurs a tumor is developed. This is known as cancer. When a tumor is developed on the bra...

The leading cause * * of * * ***breast * * *** * cancer is the use of antiperspirant. * * *** * * * *** * What? A concentration of toxins leads to cell mutations, * * a.k.a. * * ***CANCER. * * *** * Yes, ANTIPERSPIRANT. Most of the products out there are an * * *** * "antiperspirant/deodorant" com...

The Bubonic Plague has killed more people than any other plague. During the 1300’s, the Black Death, as they called it, killed nearly half the population of Europe. They called it the Black Death because of the dark color the people’s faces would turn after they died. It is caused...

Small Pox Remember having the Chicken Pox when we were little? If you never had Chicken Pox, it consists of having several small bumps that cover the entire body over and over, they itch, some would hurt, and all you would hope for would be for them to go away. Chicken Pox would last an avera...

Leukemia Acknowledge Leukemia is a cancer that starts in the organs that makes blood, specifically the bone marrow and the lymph system. Acute leukemias and chronic leukemias are the two broad types. Acute leukemias are rapid while chronic leukemias are slower. The cells that make up the blood ar...

Prostate Cancer The problem with prostate cancer is the lack of knowledge men have about the disease. The purpose of this paper is to educate men about prostate cancer, the awareness, as well as how it is diagnosed and treated. The is paper will discuss the awareness, diagnosis , and treatment ...

In 1877, Robert koch grew an organism called anthrax. He tested, demonstrated, and produced anthrax by injecting it into animals. Anthrax is an animal disease that can be transmitted to humans by direct contact with infected animals or their products. The spore-forming bacteria called Bacillus Anthr...

Skin cancer is a disease in which cancer, or malignant, cells are found in the outer layers of your skin. Your skin protects your body against heat, light, infection, and injury. It also stores water, fat, and vitamin D. Your skin consists of an outer layer called the epidermis, a...

There are three different types of skin cancer which consist of melanoma, basal cell carcinoma, and squamous cell carcinoma. Melanoma is a cancer in the pigment-producing cells in the skin. Melanoma is the eighth most common cancer in the United States and causes 1-2% of all cancer deaths. The way t...

Syphilis Sexually transmitted diseases (STDs) are communicable diseases that are spread from person to person. Of the 22-25 recognized STDs, syphilis is the most dangerous. Syphilis has many symptoms that can be prevented and treated even after they go away. Symptoms appear 10 to 90 days...

Who gets Herpes? Anyone can get Herpes including males and females. It is usually contracted through sexual contact. How many people get it worldwide? New data collected from over 20 countries confirms that Herpes is one of the most widespread sexually transmitted infections worldwide. Ap...

The "Black Death" has been reported all over Europe. New cases discovered in all cities. So far three types of "The Plague" have been found. Bubonic is the first and most common of the three. Bubonic is the only type that has had survivors, so far. The symptoms are: Enlarged...

In the beginning diseases were thought to be a kind of punishment from God, rather than an infection caused by a foreign body. Later this was found to be untrue, and we now have an entire field of science devoted to the study of these diseases, the foreign bodies that cause them, and treatments for ...

AIDS I chose AIDS as my topic, because it is one of my biggest fears. I feel I need to educate myself so I have less chance of getting the virus. AIDS contaminates up to 900,000 people. 300,000 of the people that are infected don't even know that they are. Though we know how AIDS works, we s...

AIDS is a sexually transmitted disease that is not curable. AIDS has been around since 1981, thats 31 years people have had a oncurable disease. 0ver 600,000 people have reported cases of AIDS since 1981. Evan now it was repoerted in 1981 it was actually identified in 1983. Some people that ar...

The Bacteria that causes Lyme disease is called Borrelia burgdorferi, which is transmitted by the bite of ticks. Not all types of ticks carries the bacteria that causes the disease, In the Eastern United States the deer tick is mainly responsible, but in the Western United States the black-legged ti...