AAB MT MicrobiologyExam Questions with 100% verified Answers | Already passed|Graded A+

What term describes the morphology of organisms that vary in shape and size? - Pleomorphic Capsules are the basis of which test? - Serotyping A mucoid colony on blood agar medium indicates that which of the following characteristics may be present? - Organism has a capsule. What are dark staining granules called? - Metachromatic Which of the following organisms are non-motile? - Shigella and Klebsiella In the bacterial growth cycle, growth ceases because nutrients are exhausted or toxic metabolic products have accumulated in which phase? - Stationary phase Which of the following genera of bacteria form spores? - Bacillus and Clostridium What term is used to describe bacteria that grow in the absence of atmospheric oxygen and obtain oxygen from oxygen-containing compounds? - Anaerobes What is the temperature at which bacteria grow best known as? - Optimum On blood agar plates a small zone of alpha hemolysis surrounded by a zone of beta hemolysis after refrigeration is known as what type of hemolysis? - Alpha-prime hemolysis What is the most effective method of sterilization? - Autoclaving Which of the following is used for quality control for the dry heat oven? - Bacillus subtilis