Topic Responses - Essay Example

Responses 6 criteria that aided the physician to come up with a diagnosis in Bens case. What was the diagnosis? one type of molecule, tissue, gland and membrane involved in the etiology of this disease.The diagnosis on Ben’s case was cystic fibrosis. The 6 criteria used to get the diagnosis of the given case were: The patient had features of pancreatitis, had high blood sugar levels, had respiratory problems, frequent straining (Cohen, 2012). On conducting sweat test, it turned out positive.

The tissues often affected by this type of condition include the respiratory system lining, gastrointestinal system lining, pancreatic ducts epithelia and renal tubules lining (Cohen, 2012). 2. With regards to stem cell research and applications in healthcare, where do you stand? Are you for it or against it? Explain your answer.Stem cell research entails investigations on basic cells that have the ability to create other cells. Stem cell research has always been a controversial issue, but from my perspective, I believe it will have a lot of advantages (Cohen, 2012).

Stem cell research will provide a breakthrough in medicine through coming up with means of treating some of the incurable diseases present todays (Cohen, 2012). With proper advancement of this field and proper channeling of the knowledge in stem cell, management of some incurable diseases might become possible in the future when they can manage to make the stem cells regenerate newer cells (Cohen, 2012).3. How does a virus differ from a bacterial cell? Bacteria are unicellular living microorganisms whereas viruses are nonliving.

Viruses often live in a host in order to multiply whereas bacteria can even grow on any non-living surface (Cohen, 2012). Furthermore, viruses often invade a given host’s cells and then turn the given cell’s genetic material to make their own products (Cohen, 2012). Bacteria on the other hand carry their machineries needed for growth and multiplication with them. Viruses only carry information inform of DNA or RNA packaged in a proteins coat (Cohen, 2012).Describe one method of identifying a bacterial species.

The commonest method used in identification of most bacterial species is the gram staining method (Cohen, 2012). This method is often used in identifying gram positive and gram negative bacteria on their basis of their cell wall properties. The first stain applied is the crystal violet, which then the bacteria is treated with a given mordant (Cohen, 2012). Later, the bacteria is washed by a decolorizing agent like alcohol then stained with safranin (red dye). Gram positives will be stained violet while gram negatives pink (Cohen, 2012).

Differentiate between Gram staining principles and Acid Fast staining principles. What is the major difference? Acid fast staining is often used for bacteria that are not gram staining. It is mostly used for acid fast bacteria like mycobacterium (Cohen, 2012). Acid fast bacteria often possess large quantities of lipid substances in their cells walls referred to as mycolic acid. Mycolic acids often resist gram staining. Acid fast bacteria often exhibit bright red coloration upon staining (Cohen, 2012). 4. As a kid, Paul spent many hours sailing competitively at the seashore without sunscreen.

Amazingly, in his adult life, that little lump by his left nostril very easily took him back to his sailing experience. How right!! Going back to the organization of a human body, for this cancer etiology and development, can you identify: cell, a tissue, a body system, a carcinogen, a nucleic acid, a primary preventive agent, and a type of tertiary prevention?Paul might be a Caucasian based on his history because he competitively spent most of his teenage life sailing competitively. In addition, squamous cell carcinoma has a higher incidence in the Caucasian groups when compared to others.

Squamous cell carcinoma like the name implies often affects tissues lined with squamous cell type (Cohen, 2012). Examples of such areas include exposed surfaces like the skin tissue, mouth, lips, and genitalia. There are many risk factors to squamous cell carcinoma, the common one is exposure to ultra violet rays (Cohen, 2012). U.V often results to DNA damage and if it is for a long time might result to carcinogenesis. Another risk factor is light skin, old age, immunosuppression, smoking, and family history of skin cancer (Cohen, 2012).

Preventive strategies for this cancer entail the use of sunscreens on sun exposed areas, yearly skin checkups, avoiding smoking, use of protective cloths, avoiding tanning beds, and avoid certain medications (Cohen, 2012). ReferenceCohen, B. J. (2012). Memmler’s The Human Body in Health and Disease. New York: Lippincott Williams & Wilkin.