Bacteriophages Bacteriophages, or simply phages, are viruses that infect bacteria. They possess a protein shell surrounding the phage genome, which with few exceptions is composed of DNA. A bacteriophage attaches to specific receptors on its Read More…
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Medical Lab The medical lab is divided into 4 sections which are as follows Clinical Chemistry Microbiology Histology Heamatology Clinical Chemistry This is a section of the medical laboratory which deals in analysing the chemical Read More…
Introductory Organic Chemistry TMA 2 Question 1: The decarboxylation of carboxylic acid yields which of the following compound A. Alkylhalides B. Alkanes C. Alkynes D. Alkenes The answer is B. Alkanes Question 2 : An Read More…
Introductory Organic Chemistry TMA1 Question 1: Reactions that lead to the attachment of an alkyl group to a molecular fragment are called A. estenfication B. Carbonization C. Alkylation D. Dealkylation The answer is C. Alkylation Read More…
Bacterial cells are between 0.3 and 5lm in size. They have three basic forms: cocci, straight rods, and curved or spiral rods. The nucleoid consists of a very thin, long, circular DNA molecular double strand Read More…
Epidemiological Terminologies Epidemiology investigates the distribution of diseases, their physiological variables and social consequences in human populations, and the factors that influence disease distribution (World Health Organization [WHO] definition). The field covered by this discipline Read More…
Clostridium difficile (PSEUDOMEMBRANOUS COLITIS) Clostridium difficile causes antibiotic-associated diarrhea (AAD) and more serious intestinal conditions such as colitis and pseudomembranous colitis in humans. These conditions generally result from overgrowth of Clostridium difficile in the colon, Read More…
Clostridium botulinum (BOTULISM) It is a serious paralytic illness caused by Clostridium botulinum. The toxin (only types A, B, E and F cause illness in humans) binds to receptors on peripheral nerves, where acetylcholine is Read More…
Clostridium perfringens (GAS GANGRENE) Clostridium perfringens, a gram positive rod, causes wound colonization (gas gangrene) after soil, and to a lesser extent intestinal tract, contamination. The organism produces several tissue degrading enzymes (including lecithinase [alpha Read More…
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