This method was used to collect data that dealt with everyday life experiences. The experiment examined the participants' emotions, the way they coped with daily stress, and how these factors together affected heart rate. Under Different Nutrient Conditions - Millions of microorganisms live in and on the human body. When a bacterium is able to cause a disease, it is referred to as a pathogenic bacterium. To combat the threat of pathogenic bacteria, the human body relies on the immune system, a vital part of which are macrophages.
Macrophages engulf and eliminate foreign materials through the process of phagocytosis.
RAW cells are the macrophage cell lines of mice, and are commonly used in laboratory settings to examine phagocytosis. Previous research leads up to the conclusion that RAW cells may not be sufficient enough to eliminate foreign microorganisms. The basis of our research is to find out whether or not RAW cells are a sufficient substitute for true macrophages found within the body. The relevance of this research and how it affects the scientific community is that years of scientific research incorporated the idea that RAW cells and other cell lines were sufficient substitutes for macrophages, but our research questions that idea. Based on the knowledge acquired, RAW cells are supposed to kill foreign microorganisms, but previous research has found that E. coli bacteria can survive within RAW cells.