BIO 250 Microbiology QUIZ 3 - {2022} | BIO250 Microbiology QUIZ 3 - A Grade

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Question 1 Correct 4.50 points out of 4.50 When microbes live independently but cooperate and share nutrients, it is called ______. Select one: a. symbiosis b. antibiosis c. mutualism d. synergis... m The correct answer is: synergism E. coli bacteria normally live in the human gut and produce vitamin K that the body uses. This is best termed a ______ relationship. Select one: a. parasiticb. saprobicc. antagonistic d. mutualistic Question 2 Correct 4.50 points out of 4.50 The correct answer is: mutualistic The phase of the bacterial growth curve in which the rate of multiplication equals the rate of cell death is the ______. Select one:a. lag phase b. exponential phase c. stationary phase d. death phasee. telophase Question 3 Correct 4.50 points out of 4.50 The correct answer is: stationary phase The phase of the bacterial growth curve that shows the maximum rate of cell division is the ______. Select one: a. lag phaseb. exponential phase c. stationary phase d. death phasee. prophase Question 4 Correct 4.50 points out of 4.50 The correct answer is: exponential phase The movement of molecules from an area of high concentration to an area of lower concentration is called ______. Select one:a. facilitated diffusion b. diffusionc. active transport d. osmosise. endocytosis Question 5 Correct 4.50 points out of 4.50 The correct answer is: diffusion Facilitated diffusion is limited by Select one: a. the substrate concentration.b. carrier proteins in the membrane.c. the size of the pores in the membrane. d. osmotic pressure.e. the size of the cell. Question 6 Correct 4.50 points out of 4.50 The correct answer is: carrier proteins in the membrane. Nutrient absorption is mediated by the ______. Select one:a. cell wall b. peptidoglycan layerc. proteins in the periplasmic space d. cell membranee. nuclear membrane Question 7 Correct 4.50 points out of 4.50 The correct answer is: cell membrane Intermediates from the Krebs cycle can be converted to amino acids by the process of ______. Select one: a. aminationb. deaminationc. phosphorylation d. beta oxidatione. [Show More]

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