BIO 250 Microbiology (BIO250)

Microbiology 250 Exam 3 Questions With Complete Solutions

Microbiology 250 Final Exam Questions With Complete Solutions

Straighterline Micro 250 Quiz 6 prep Questions With Complete Solutions

final exam straighterline microbiology Questions With Complete Solutions

BIO 250 | Microbiology Final Exam Questions and Answers (Graded A+ 2023) Straighterline BIO 250 | Microbiology Final Exam Questions and Answers (Graded A+ 2023) Straighterline BIO 250 | Microbiology Final Exam Questions and Answers (Graded A+ 2023) Straighterline

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 OHconc...

Which quantitation methods can be used to determine the number of living and dead cells in a sample? Select one: a. turbidity determination and direct microscopic count b. direct microscopic count and direct plate count c. filtration and direct plate count d. filtration and turbidity determination The correct answer is: turbidity determination and direct microscopic count Which quantitation method(s) do not require bacteria to be grown on solid media? Select one: a. turbidity determin...

Which of the following is not true of chloramines? Select one: a. Contains chlorine b. Can sanitize and disinfect c. Form trihalomethanes with organic compounds d. Is safer than free chlorine e. Treats wounds and skin surfaces Feedback The correct answer is: Form trihalomethanes with organic compounds Question2 Correct Mark 5.00 out of 5.00 Flag question Question text Which white blood cells comprise 3-7% of circulating WBC's, are phagocytic and can migrate out into body tissues ...

Who of the following provided the evidence needed to discredit the concept of spontaneous generation? Select one: a. Pasteur b. Koch c. Semmelweiss d. Lister The concept that human and animal diseases are caused by microorganisms is called the Select one: a. cell theory. b. germ theory. c. causative theory. d. disease theory. While each of these processes are believed to have evolved prior to aerobic respiration, which one is the most critical process, without which aerobic respi...

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 In the nitrogen cycle, which of the following phases involves the release of nitrogen as into the Earth’s atmosphere? Select one: a. ammonication b. denitrication c. nitrication d. nitrogen xation Final Exam 2/21 Question 3 Incorrect 0.00 points out of 5...