Carbohydrates, which were once regarded as energy-yielding molecules, are now known to combine with the cell surfaces and influence cell-to-cell communication, the immune system, the ability of various agents to make us sick, and the progression of cancer. ... By presenting a sugar from Hemophilus influenzae type b to the immune system, the vaccine primes the system to destroy the virus once it enters the body. ... Selectins bind loosely to specific carbohydrates on the surface of white blood cells of the immune system. ... Researchers are therefore attempting to incorporate such sugars into...

• Word Count: 657
• Approx Pages: 3
• Grade Level: Undergraduate

All types of marijuana contain THC (delta-9-tetrahydrocannabinol) which is the main active chemical in the drug. Marijuana's effects on the user depend on it's strength or potency, which is related to the amount of THC it contains. The THC content of marijuana has been increasing since the 1970s. ...

• Word Count: 524
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Smoking can affect up to 10 systems of the body including the respiratory, circulatory, immune, reproductive, digestive and central nervous system (Better Health Australia). ... The Ontario health care system spends $1.6 billion a year on tobacco-related disease (Ontario Ministry of Health and Long-Term Care). ...

• Word Count: 614
• Approx Pages: 2
• Has Bibliography
• Grade Level: Undergraduate

The New Age Of Cancer Treatment In 1971 President Richard Nixon declared a war on cancer and predicted a cure in the near future. As of today there is no complete cure but many advances have been made due to the completion of the human genome sequence. Because of this advancement, scientists h...

• Word Count: 630
• Approx Pages: 3
• Grade Level: High School

If exposed to some of the other chemicals in second-hand smoke, the risk of a stroke, a heart attack or lung cancer is greatly increased and damage can be done to your skin and digestive system as well. ... Other implications include eye, nose and throat irritation, excess phlegm and an affect on the cardiovascular system. ...

• Word Count: 1168
• Approx Pages: 5
• Grade Level: Undergraduate

Biological Basis Lung cancer is the uncontrolled growth of abnormal cells in one or both of the lungs. While normal lung tissue cells reproduce and develop into healthy lung tissue, these abnormal cells reproduce rapidly and never grow into normal lung tissue. Lumps of cancer cells called tumors th...

• Word Count: 1232
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School