Brock Biology of Microorgan. -Access
14th Edition
ISBN: 9780321943736
Author: MADIGAN
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 5.10, Problem 2MQ
Describe how you could use a turbidity measurement to tell how many colonies you would expect from plating a culture of a given OD.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Explain the imporance of using a control tube with only broth when measuring turbidity in a spectrophotometer.
Do you think that you will be able to determine the CFU’s in the food samples by counting the colonies on the nutrient agar? Why or why not?
Calculate mean growth rate and generation time of a culture that increase in exponential phase from 5*102 to1*108 in 1 hours
Chapter 5 Solutions
Brock Biology of Microorgan. -Access
Ch. 5.1 - Summarize the steps that lead up to binary fission...Ch. 5.1 - Define the term generation. What is meant by the...Ch. 5.2 - Prob. 1MQCh. 5.2 - Prob. 2MQCh. 5.2 - Prob. 3MQCh. 5.3 - Prob. 1MQCh. 5.3 - Prob. 2MQCh. 5.3 - Prob. 3MQCh. 5.4 - What are autolysins and why are they necessary?
Ch. 5.4 - What is the function of bactoprenol?
Ch. 5.4 - What is transpeptidation and why is it important?
Ch. 5.5 - What is a semilogarithmic plot and what...Ch. 5.5 - Prob. 2MQCh. 5.5 - Prob. 3MQCh. 5.6 - In which phase of the growth curve do cells divide...Ch. 5.6 - Prob. 2MQCh. 5.6 - Prob. 3MQCh. 5.7 - How do microorganisms in a chemostat differ from...Ch. 5.7 - What happens in a chemostat if the dilution rate...Ch. 5.7 - Do pure cultures have to be used in a chemostat?Ch. 5.8 - What are some of the problems that can arise when...Ch. 5.8 - Using microscopic techniques, how could you tell...Ch. 5.9 - Why is a viable count more sensitive than a...Ch. 5.9 - Describe how you would dilute a bacterial culture...Ch. 5.9 - Prob. 3MQCh. 5.10 - List two advantages of using turbidity as a...Ch. 5.10 - Describe how you could use a turbidity measurement...Ch. 5.11 - How does a hyperthermophile differ from a...Ch. 5.11 - Prob. 2MQCh. 5.11 - E. coli can grow at a higher temperature in a...Ch. 5.12 - Prob. 1MQCh. 5.12 - What molecular adaptations to cold temperatures...Ch. 5.13 - Which phylogenetic domain includes species with...Ch. 5.13 - How does the membrane structure of...Ch. 5.13 - What is Taq polymerase and why is it important?Ch. 5.14 - How does the concentration of H+ change when a...Ch. 5.14 - What terms are used to describe organisms whose...Ch. 5.15 - What is the aw of pure water? What is the lower...Ch. 5.15 - What are compatible solutes, and when and why are...Ch. 5.16 - How does an obligate aerobe differ from a...Ch. 5.16 - How does a reducing agent work? Give an example of...Ch. 5.16 - How does Superoxide dismutase or superoxide...Ch. 5.17 - Why is heat an effective sterilizing agent?Ch. 5.17 - What steps are necessary to ensure the sterility...Ch. 5.17 - Distinguish between the sterilization of...Ch. 5.18 - Define D10 and explain why the killing dose for...Ch. 5.18 - Prob. 2MQCh. 5.18 - Prob. 3MQCh. 5.19 - Distinguish between the antimicrobial effects of...Ch. 5.19 - Describe how the minimum inhibitory concentration...Ch. 5.19 - Distinguish between a sterilant, a disinfectant,...Ch. 5 - Prob. 1RQCh. 5 - Describe the role of proteins present at the...Ch. 5 - Prob. 3RQCh. 5 - Describe how new peptidoglycan subunits are...Ch. 5 - Prob. 5RQCh. 5 - Describe the growth cycle of a population of...Ch. 5 - How does a chemostat regulate growth rate and cell...Ch. 5 - How does a viable count differ from a total count?Ch. 5 - How can turbidity be used as a measure of cell...Ch. 5 - Prob. 10RQCh. 5 - Prob. 11RQCh. 5 - Concerning the pH of the environment and of the...Ch. 5 - How does a halophile maintain positive water...Ch. 5 - Prob. 14RQCh. 5 - Prob. 15RQCh. 5 - Contrast the terms thermal death time and decimal...Ch. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - Describe the procedure for obtaining the minimum...Ch. 5 - Prob. 21RQCh. 5 - A medium was inoculated with 5 106 cells/ml of...Ch. 5 - Escherichia coli but not Pyrolobus fumarii will...Ch. 5 - In which direction (into or out of the cell) will...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Make an accurate colored of what you observed on the mannitol salt agar plate.arrow_forwardName and explain the culture media that can be used for cultivating non-specific and specific microorganism? b. can culture medium be placed in a freezer? why or why notarrow_forwardOn agar plate does each discrete colony represent the growth of one cell? Explain your answer. Why can a single colony on a plate be used to start a pure culture?arrow_forward
- Is the mannitol salt agar (MSA) a complex or defined medium? Explain based on Composition. What kind of media based on what kind of microorganisms it allows to growarrow_forwardYou will appreciate the abundance of soil microbes when you consider that the plate of them we generated was taken from a 10-5 dilution. Just what IS a 10-5 dilution? It is 1 in _____________________________________. Were there any fungus-like forms on the plates we prepared from the soil extract?arrow_forwardbased on the attached photo, compute the cfu/ml of 42 colonies at plate 10^5. show the complete solution and provide explanation.arrow_forward
- Explain the importance of using a control tube with only broth when measuring turbidity in a spectrophotometer.arrow_forwardexplain why you would expect to see similarities in the types of colonies on the fomite plates and the handwashing plates?arrow_forward. If you wanted to determine the number of endospores in a sample of soil, what could you do before plating it?arrow_forward
- explain the liquid growth analysis process in your own wordsarrow_forwardA sharp growth line in the SIM media is an indication of what characteristic? A) Hydrogen sulfide gas production B) Tryptophan breakdown C) Indole production D) Non-motilearrow_forwardWhat is the advantage of the plating method over an electronic cell counting method in counting cells? Why does turbidity lose reliability at high cell concentrations when the culture reaches the stationary phase?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
cell culture and growth media for Microbiology; Author: Scientist Cindy;https://www.youtube.com/watch?v=EjnQ3peWRek;License: Standard YouTube License, CC-BY