Biol 2117 - Study guides, Class notes & Summaries

What types of enzymes are typically constitutively expressed? Ans- enzymes in constant demand In an experiment exploring the expression of DNA repair enzymes, phage exposed to UV light had low infectivity, but when both phage and host cell E. coli were exposed to UV light, normal levels of infectivity resulted. From these data we can infer Ans- host cell genes were used to repair phage DNA The lacZ gene was used in an experiment testing for the expression of gene X. About half the re...

Which of the following is an example of a noncommunicable infectious disease A. infection with a respiratory virus B. food poisoning due to a preformed bacterial toxin in food C. skin infection acquired from a dog bite infection acquired from the stick of a contaminated needle Ans- B. food poisoning due to a preformed bacterial toxin in food which of the following is a pathogen that could not be identified by the original Koch's postulates A. S. aureus B. P. aeruginosa C. HIV D. S. ...

Which of the following is an example of a noncommunicable infectious disease A. infection with a respiratory virus B. food poisoning due to a preformed bacterial toxin in food C. skin infection acquired from a dog bite infection acquired from the stick of a contaminated needle - B. food poisoning due to a preformed bacterial toxin in food which of the following is a pathogen that could not be identified by the original Koch's postulates A. S. aureus B. P. aeruginosa C. HIV D. S. en...

What types of enzymes are typically constitutively expressed? - enzymes in constant demand In an experiment exploring the expression of DNA repair enzymes, phage exposed to UV light had low infectivity, but when both phage and host cell E. coli were exposed to UV light, normal levels of infectivity resulted. From these data we can infer - host cell genes were used to repair phage DNA The lacZ gene was used in an experiment testing for the expression of gene X. About half the resultin...

Immunity - involves a specific defensive response when a host is invaded by foreign organisms the immune system recognizes foreign substances as not belonging to the body and responds. Antigen - is a substance that provokes an immune response. Immune response - may generate specialized lymphocytes or antibodies specific for the antigen. Acquired immunity - is the protection an organism develops during its lifetime. Active immunity - involves an immune response within the individual. P...

Direct Methods of Measuring Microbial Growth Dilutions, Filtration, microscope count Indirect Methods of Measuring Microbial Growth Turbidity, dry weight, metabolic activity Antisepsis removing pathogens from living tissue Disinfection removing pathogens from non-living objects -cidal killing

BIOL 2117 MICROBIOLOGY MODULE EXAM 2

Vocabulary: atmosphere, biomass, biosphere, carbon reservoir, carbon sink, fossil fuel, geosphere, greenhouse gas, hydrosphere, lithosphere, photosynthesis Prior Knowledge Questions (Do these BEFORE using the Gizmo.) In the process of photosynthesis, plants take in carbon dioxide (CO2) from the atmosphere and water (H2O) from the soil. Using the energy of sunlight, plants build molecules of glucose (C6H12O6) and oxygen (O2). 1. How do plants on Earth affect the amount of carbon in Earth’...

BIOL 2117 OpenStax Microbiology Test Bank Chapter 14: Antimicrobial Drugs

Which of the following is an example of a noncommunicable infectious disease A. infection with a respiratory virus B. food poisoning due to a preformed bacterial toxin in food C. skin infection acquired from a dog bite infection acquired from the stick of a contaminated needle - B. food poisoning due to a preformed bacterial toxin in food which of the following is a pathogen that could not be identified by the original Koch's postulates A. S. aureus B. P. aeruginosa C. HIV D. S. en...