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Micro
| Question | Answer |
|---|---|
| Describe the structure of Mycobacterium tuberculosis | a rod-shaped, gram-positive-like organism, typical cytoplasmic membrane and peptidoglycan cell wall layers,waxy lipids |
| Explain the transmission, symptoms, and treatment of tuberculosis | spread via respiratory droplets, symptoms include fever, night sweats, coughing, and wasting (loss of weight), Treatment is usually with triple antibiotic therapy for six months to two years |
| Describe the disease diphtheria | caused by the diphtherotoxin, which inhibits the 80S ribosomes of the host, affects the heart and nervous system, and can cause death, pseudomembrane forms in the pharynx, can cause asphyxiation. This membrane removed may bleed to death |
| Explain the disease pertussis. | mainly afflicts young children. The latter name comes from the paroxysmal sound, or whoop, generated when the coughing finally stops enough that a labored gasp can be inspired. subconjunctival hemorrhaging occurs. |
| Name the two systems used to classify streptococci. | The C carbohydrates are called group A, group B, etc., a system of classification developed by Rebecca Lancefield, A second method of grouping is based on the hemolytic reaction of bacteria on blood agar |
| Describe Strep. agalactiae (group B strep) | While the bacteria are generally harmless (normal) flora to the female, the newborn develops a serious disease. Strep. agalactiae causes about 40 percent of newborn septicemia, often resulting in death; it also causes serious meningitis in newborns |
| Identify the five layers of Streptococcus pyogenes | Cell layers from the inside are as follows: · Cytoplasmic membrane · The cell wall: peptidoglycan (PG) · C carbohydrate · M protein · Capsule of hyaluronic acid |
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