Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 6, Problem 1CAE
Clinical Applications and Evaluation
1. Assume that after washing your hands, you leave ten bacterial cells on a new bar of soap. You then decide to do a plate count of the soap after it was left in the soap dish for 24 hours. You dilute 1 g of the soap 1:106 and plate it on heterotrophic plate count agar. After 24 hours of incubation, there are 168 colonies. How many bacteria were on the soap? How did they get there?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Please answer fast
Dilution Problem. A culture of Staphylococcus is diluted as follows:
(1) 20mL are added to 80mL of water.
(2) 10uL from (1) are then added to 9.99mL of water.
(3) A 10-2 dilution is made from tube # (2).
(4) 100uL from (3) are plated for a pour plate and incubated.
Growth Problem.A culture with approximately 2x103 cells/mL were incubated. After 3 hours, the number of cells had increased to 3x105.
a) How long was the generation time in minutes?b) How many generations have occurred
1. TRUE or FALSE. Relative to a 24 hour culture of endospore forming bacteria, a 72 hour culture would contain more endospores.
Microbiology question. Chose the right answer
Chapter 6 Solutions
Microbiology: An Introduction
Ch. 6 - Prob. 1RCh. 6 - Prob. 2RCh. 6 - Prob. 3RCh. 6 - Seven methods of measuring microbial growth were...Ch. 6 - By deep-freezing, bacteria can be stored without...Ch. 6 - A pastry chef accidentally inoculated a cream pie...Ch. 6 - Nitrogen and phosphorus added to beaches following...Ch. 6 - Differentiate complex and chemically defined...Ch. 6 - DRAW IT Draw the following growth curves for E....Ch. 6 - NAME IT A prokaryotic cell hitched a ride to Earth...
Ch. 6 - Two culture media were inoculated with four...Ch. 6 - Two culture media were inoculated with four...Ch. 6 - Use the following graph to answer questions 3 and...Ch. 6 - Use the following graph to answer questions 3 and...Ch. 6 - Assume you inoculated 100 facultatively anaerobic...Ch. 6 - The term trace elements refers to a. the elements...Ch. 6 - Which one of the following temperatures would most...Ch. 6 - Which of the following is not a characteristic of...Ch. 6 - Which of the following types of media would not be...Ch. 6 - An organism that has peroxidase and superoxide...Ch. 6 - E. coli was incubated with aeration in a nutrient...Ch. 6 - Clostridium and Streptococcus are both...Ch. 6 - Most laboratory media contain a fermentable...Ch. 6 - Flask A contains yeast cells in glucose-minimal...Ch. 6 - Clinical Applications and Evaluation 1. Assume...Ch. 6 - Heat lamps are commonly used to maintain foods at...Ch. 6 - The number of bacteria in saliva samples was...
Additional Science Textbook Solutions
Find more solutions based on key concepts
The correct term for production of offspring. Introduction: Reproduction is an important life process for most ...
Biology Illinois Edition (Glencoe Science)
Some people compare DNA to a blueprint stored in the office of a construction company. Explain how this analogy...
Biology: Concepts and Investigations
The term ‘spore’.
Biology Science Notebook
Why is it necessary to be in a pressurized cabin when flying at 30,000 feet?
Anatomy & Physiology (6th Edition)
Propose a model for the assembly of a flagellum in a typical Gram-positive cell envelope.
Prescott's Microbiology
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
- 3 answer and explain the rationalearrow_forwardAnswer question 3arrow_forwardHelping tags: Biology, Food Microbiology, Spore formers, sulfide spoilage spores 25 g of sugar sample was obtained from the production line for analysis of raw ingredients. It was diluted to 250 ml and was heated at 100 deg Celsius for 5 minutes. After cooling, 20 ml of the sample solution was divided equally among 6 tubes of sulfite agar. After incubation, the following counts were obtained: 35, 26, 29, 32, 34, and 31. Compute for the number of sulfide spoilage spores and express the count per 50 g of sugar. . . . WILL UPVOTE, just pls help me answer the question and show COMPLETE solution.arrow_forward
- Phenol Red Test Question:arrow_forwardSubculture and Colony Morphology Descriptions Following identification of the Gram-negative isolate and Gram-positive isolate, you next subculture each onto fresh nutrient agar plates. Briefly describe the subculture process in three or so sentences and what this allowed you to achieve; follow this with colony morphology descriptions of each. Description: Isolate A – Describe: Colony morphology: Medium & incubation temperature: Isolate B – Describe: Colony morphology: Medium & incubation temperature:arrow_forwardMicrobiology question. Can you please choose the write answer and explain why it’s right and others are wrong.arrow_forward
- BONUS (15 points) The fallowing series of dilution was prepared from a specimen to determine the number of bacteria. There were 62 colonies on the agar plate prepared by transferring 0.3 ml from the tube number 4. Calculate the dilution factors for each tube. What is the cell concentration in the original specimen? Calculate the total number of cells in tube number 2. étv A) F12 F9 F10 F7 % & %3D delete 5 { T Y J Karrow_forwardMicrobiology question. Can you please choose the write answer and explain why it’s right and others are wrong.arrow_forwardMicrobiology question. Please choose the right answers.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Bacterial Endospore Formation -Biology Pundit; Author: Biology Pundit;https://www.youtube.com/watch?v=6_sinRhE8zA;License: Standard YouTube License, CC-BY