Alkaliphiles Study guides, Class notes & Summaries

What is microbial growth? - increase in the number of cells What are the two general requirements for microbial growth? - physical: temperature, pH, osmotic pressure chemical: types of nutrients, growth factors A bacterium has just encountered a new environment. What are its three basic choices with respect to growth in this new environment? - Adapt- allows growth to continue Tolerate- survive without growth DIE What are a bacterium's cardinal temperatures? Do all bacteria have the same...

OpenStax Microbiology Test Bank Chapter 9: Microbial Growth * = Correct answer Multiple Choice 1. Bacteria most commonly reproduce using which of the following methods? A. binary fission* B. budding C. meiosis D. mitosis 2. Which structure separates new daughter cells in binary fission? A. the crescent B. the division septum* C. the FtsZ D. the spindle apparatus 3. Which of the following is another term for generation time? A. doubling time* B. growth rate C. mitotic index ...

ATP is a Select one: a. by-product of ADP that breaks down phosphates for photosynthesis. b. catalyst for all chemical reactions that occur in the cell. c. long chain of nucleotides responsible for protein synthesis. d. nucleotide that releases and stores energy in the cell. A viral capsid is composed of Select one: a. carbohydrates. b. lipids. c. enzymes. d. proteins. Which of these are NOT considered living organisms? Select one: a. monera b. plants c. protists d. viruses Fin...

extremophiles - Answer microbes that can grow at harsh conditions such as boiling mud pits or the arctic circle hyperthermophile - Answer survive at >70℃ thermophile - Answer optimal growth between 45 and 70℃ mesophile - Answer 25-45℃ (human body temp) psychrotrophs - Answer prefers 15-30℃ psychrophiles - Answer -5-15℃ neutrophile - Answer pH of 7 alkaliphiles - Answer >8.5 pH Acidophiles - Answer <5.5 pH Halotolerant - Answer survive up to 10% solut...

OpenStax Microbiology Test Bank Chapter 9: Microbial Growth * = Correct answer Multiple Choice 1. Bacteria most commonly reproduce using which of the following methods? A. binary fission* B. budding C. meiosis D. mitosis 2. Which structure separates new daughter cells in binary fission? A. the crescent B. the division septum* C. the FtsZ D. the spindle apparatus 3. Which of the following is another term for generation time? A. doubling time* B. growth rate C. mitotic index ...

OpenStax Microbiology Test Bank Chapter 9: Microbial Growth * = Correct answer Multiple Choice 1. Bacteria most commonly reproduce using which of the following methods? A. binary fission* B. budding C. meiosis D. mitosis 2. Which structure separates new daughter cells in binary fission? A. the crescent B. the division septum* C. the FtsZ D. the spindle apparatus 3. Which of the following is another term for generation time? A. doubling time* B. growth rate C. mitotic index ...

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...

OpenStax Microbiology Test Bank Chapter 9: Microbial Growth * = Correct answer Multiple Choice 1. Bacteria most commonly reproduce using which of the following methods? A. binary fission* B. budding C. meiosis D. mitosis 2. Which structure separates new daughter cells in binary fission? A. the crescent B. the division septum* C. the FtsZ D. the spindle apparatus 3. Which of the following is another term for generation time? A. doubling time* B. growth rate C. mitotic index ...

OpenStax Microbiology Test Bank Chapter 9: Microbial Growth * = Correct answer Multiple Choice 1.Bacteria most commonly reproduce using which of the following methods? A.binary fission* B.budding C.meiosis D.mitosis 2.Which structure separates new daughter cells in binary fission? A.the crescent B.the division septum* C.the FtsZ D.the spindle apparatus 3.Which of the following is another term for generation time? A.doubling time* B.growth rate C.mitotic index D.replication ...

OpenStax Microbiology Test Bank Chapter 9: Microbial Growth Page 1 of 17 Chapter 9: Microbial Growth * = Correct answer Multiple Choice 1. Bacteria most commonly reproduce using which of the following methods? A. binary fission* B. budding C. meiosis D. mitosis Difficulty: Easy ASM Standard: N/A 2. Which structure separates new daughter cells in binary fission? A. the crescent B. the division septum* C. the FtsZ D. the spindle apparatus Difficulty: Easy ASM Standard: N/A 3. W...