BIO 250 (BIO250)

BIO 250 FINAL EXAM (MICROBIOLOGY ) | 60 QUESTIONS AND 100% CORRECT ANSWERS LATEST 2024 - STRAIGHTERLINE

Bio safety levels (BSL) measure what? correct answer: an organisms controllability, infectivity, virulence, pathogenicity, antibiotic resistance, vaccine, treatment, mortality. BSL 1 correct answer: does not normally cause disease in people BSL 2 correct answer: Associated with disease BSL 3 correct answer: indigenous/exotic agents that may have serious or lethal consequences and with potential for aerosol transmission BSL 4 correct answer: dangerous/exotic agents of a life-thre...

Bio 250 straighterline test 1 prep Questions With Complete Solutions

Straighterline Micro 250 final prep Questions With Solutions Which class of eukaryotic microorganisms can be subdivided into groups such as Mastigophora, Sarcodina, Ciliophora, and Apicomplexa? A. Helminths B. Algae C. Protozoa D. Fungi - ANS Protozoa Genetic material can be excised from one chromosome and directly integrated into another via A. conjugation. B. transformation. C. transduction. D. transposons. - ANS transposons. Which immune cell secretes numero...

1. An irregular cluster of spherical cells would be called a/an a. Palisades b. Sarcina c. Staphylococcus d. Streptococcus e. Spirilla 2. The study of the immune response to infection caused by microorganisms is a. Hypersensitivity b. Epidemiology c. Immunology d. Morbidity e. Geomicrobiology 3. What is the maximum number of electrons in the first energy shell of an atom? a. 2 b. 4 c. 8 d. 18 e. 32 4. The movement of molecules from an area of high concentration to an area of l...

1-What microbial process was responsible for changing Earth’s atmosphere from one without oxygen to one with oxygen? Select one: a. anaerobic respiration b. decomposition c. oxygenic photosynthesis d. temperature regulation 2-In the nitrogen cycle, which of the following phases involves the release of nitrogen as into the Earth’s atmosphere? Select one: a. ammonification b. denitrification c. nitrification d. nitrogen fixation 3-Farmers commonly inoculate legume crops with Rhi...

Studies by Emil von Behring and Shibasaburo Kitasato demonstrated that inactivated toxins can induce the synthesis of antitoxins in the blood of rabbits. These antitoxins (antibodies) are the basis of Select one: a. humoral immunity. Correct b. cell-mediated immunity. c. antibiotic immunity. d. phagocyte-mediated immunity. Feedback The correct answer is: humoral immunity. Question 2 Correct 4.50 points out of 4.50 Not flaggedFlag question Question text Whose work on spontaneous gen...

1. In the nitrogen cycle, which of the following steps involves removal of nitrogen from the atmosphere by bacteria? a. Ammonification b. Denitrification c. Nitrification d. Nitrogen fixation Answer is d. In nitrogen fixation, nitrogen is removed from the atmosphere by nitrogen-fixing bacteria and converted to ammonia 2. If enough H+ ions are added to pure water to raise the H+ concentration of the solution to ten times higher than the original concentration, what is the resulting OH- ...

1. What microbial process was responsible for changing Earth's atmosphere from one without oxygen to one with oxygen? Oxygenic photosynthesis 2. In the nitrogen cycle, which of the following phases involves the release of Nitrogen into the Earth's atmosphere? Denitrification 3. Farmers commonly inoculate legume crops with Rhizobium bacteria for which of the following purposes? The two form a symbiotic relationship increasing the plant's access to nitrogen. 4. In the secondary ...