BIO 2460 Q&A Bundle

A bacterial species that cannot tolerate the presence of oxygen and will only grow in the absence of oxygen is classified as a. obligate aerobe b. obligate anaerobe c. facultative aerobe d. mcroaerophile e. aerotolerant anaerobe b A bacterial isolate is subcultured to two blood agar plates, one of...

Which of the following is not a major element of a microbial cell? a. nitrogen b. oxygen c. copper d. hydrogen e. carbon c Surfactants work by A. Coating the organism preventing interaction with its environment B. Blocking transport into the organism C. Blocking transport out from the organism D....

The term prokaryotes refers to which of the following? unicellular organisms that have no nucleus The term microbiota refers to which of the following? all microorganisms in a certain region of the human body Which of the following refers to the type of interaction between two prokaryotic populati...

Signs objective and measurable. Can be measured by a clinician. -body temp. (98.6 F) -heart rate (60-100 beats per minute) -breathing rate (12-18 breaths per minute) -blood pressure (between 90/60 and 120/80 mm Hg) Symptoms Subjective. Felt by the patient but cannot be clinically confirmed or objec...

What are the five basic techniques Microbiologists use to manipulate, grow, examine, and characterize MOs Inoculation; Incubation; Isolation; Inspection; Identification Sterile Complete absence of viable microbe Aspetic Prevention of infection or contamination Pure culture Growth of single specie...

4 basic steps of bacterial reproduction 1. Growth of cell size & increase in cell components 2. Replication of DNA 3. Division of the cytoplasm (cytokineses) 4. Septum formation and division of daughter cells Generation time time takes to double population E. Coli generation time 20 minutes B. Su...

Binary Fission 1. Growth of cell size and increase in cell components 2. Replication of DNA 3. Division of the cytoplasm (cytokinesis) 4. Septum formation and division of daughter cells Binary fission step 1 (1. Growth of cell size and increase in cell components) "The most common mechanism of cel...

What is Microbiology The specialized area of biology that deals with organisms too small to be seen with the naked eye 6 Characteristics of All Living Things Have cells, grow and develop, reproduce, respond to stimuli, regulate their metabolic activity 5 Major Groups of Microorganisms Bacteria, Al...

Which of the following methods would be used to measure the concentration of bacterial contamination in processed peanut butter? A. turbidity measurement B. total plate count C. dry weight measurement D. direct counting of bacteria on a calibrated slide B In which phase would you expect to observe...

Which of the following would be a sign of an infection? A. muscle aches B. headache C. fever D. nausea C Which of the following is an example of a noncommunicable infectious disease? A. infection with a respiratory virus B. food poisoning due to a performed bacterial toxin in food C. skin infecti...

Aerobic respiration is an example of... chemoheterotrophy Bacteria living in a freshwater stream that are moved to salty seawater would... become dehydrated due to the loss of water The antiparallel arrangement within DNA molecules refers to... one helix that runs from the 5' to 3' direction and...

5 Major Groups of Microbes 1)Bacteria 2)Viruses 3)Fungi 4)Algae 5)Protozoa When bacteria, archaea, eukaryotes arise Arose 2.9 Billion years ago Important roles microbes play on earth for life to exist Roles include: -life-nutrient cycling -decomposition -maintain atmosphere -regula...