MICROBIOLOGY BIO250 STRAIGHTERLINE FULL COURSE GRADED EXAMS 1,2,3,4,5,6 MIDTERM EXAM (2 VERSIONS) AND FINAL EXAM AGRADE
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Course
MICROBIOLOGY BIO250
Institution
MICROBIOLOGY BIO250
MICROBIOLOGY BIO250
STRAIGHTERLINE FULL COURSE GRADED
EXAMS 1,2,3,4,5,6 MIDTERM EXAM (2
VERSIONS) AND FINAL EXAM AGRADE
Straighterline Microbiology Exam 1 BIO250_Saylor_V5
Grade: 81.00 out of 90.00 (90%)
1. Among the types of microorganisms, the are noncellular.
a. viruses
b. helminths
...
MICROBIOLOGY BIO250 STRAIGHTERLINE FULL COURSE GRADED EXAMS 1,2,3,4,5,6 MIDTERM EXAM (2 VERSIONS) AND FINAL EXAM AGRADE Straighterline Microbiology Exam 1 BIO250_Saylor_V5 Grade: 81.00 out of 90.00 (90%) 1. Among the types of microorganisms, the are noncellular. a. viruses b. helminths c. protozoans d. bacteria 2. The wavelength of light used and the numerical aperture governs . 3. What is the maximum number of electrons in the first energy shell of an atom? b. 4 c. 8 d. 18 e. 32 a. 2 a. illumination c. magnification d. size of the field e. contrast b. resolution 4. Thioglycolate medium contains the following: yeast extract, pancreatic digest of casein, glucose, L -cysteine, sodium chloride, sodium thioglycolate, and agar. It is considered a complex medium because a. both yeast extract and pancreatic digest of casein are not chemically defined. b. it has multiple ingredients for a broad range of nutrients. c. depending on their oxygen utilization pattern, organisms will grow differently on it. d. thioglycolate has a carbon -sulfur bond that many microbes cannot break enzymatically. 5. Which of the following is not a pyrimidine? a. Uracil 6. The first cells appeared about billion years ago. 7. Which of the following is not an inoculating tool? 8. In the cell cytoplasm, molecules of ATP are a . 9. Burning coal produces sulfur dioxide in the atmosphere. When combined with rain that falls into bodies of water, this leads to 10. Which type of medium would be the best choice when shipping a sample of bacteria from a clinic to a laboratory for testing? b. Eosin -methylene blue agar c. Blood agar d. Thioglycolate medium a. Transport medium a. an increase in pH level of the water. b. a greater concentration of OH- ions in the water. d. no change in the pH level of the water. c. a decrease in the pH level of the water. a. solute (correct answer) b. solvent b. Loop c. Needle d. Pipette e. Swab a. Petri dish a. 5 b. 4.5 d. 2 e. 1 c. 3.5 c. Thymine d. Cytosine b. Adenine
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