AGR 400 Midterm Study Guide Questions With Complete Solutions

Accustaph what does it test and results correct answer: latex slide agglutination test to identify if the bacteria is staphylococcus aureus. Positive is agglutination means Staphylococcus aureus. Negative is no agglutination which is NOT Staphylococcus aureus Actinomyces viscosus correct answer: - Actinobacter - Catalase positive - Anaerobic - Gram positive branching rods - Causes pyothorax (dogs) - infection and fluid accumulation in thoracic cavity - Horses: Cutaneous pustules - Differentiate from pyothorax caused by Nocardia species Aerobes correct answer: requires O2 ex:Leptospira spp Microaerophilic correct answer: Requires less O2 levels in environment ex: camplylobacter fetus Obligate anaerobes correct answer: Survive only briefly in O2, oxygen is toxic and can kill them ex: Clostridium tetani Anaerobes correct answer: Unable to grow in O2 ex: Clostridium tetani Facultative anaerobes correct answer: Grow in both O2 and lack of O2 ex: E. Coli Antifungal drugs correct answer: - Can cause injury to the plasma membrane of cells - Amphoterecin-B, Nystatin, Ketoconazole and Myconazole Polymyxin