MICROBIOLOGY FUND.:CLINICAL APPR-ACCESS
3rd Edition
ISBN: 2810022612789
Author: Cowan
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2, Problem 12Q
There is a type of differential medium that can reveal whether bacteria growing on it produce and secrete an enzyme that breaks down DNA. Why would a bacterium secrete an enzyme that destroys DNA?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
You inoculated a culture with an initial cell count of 6.5x10^3 cells. The generation time for this organism is 25 minutes. You grew the culture for 10 hours.
a) How many generations occurred?b) How many cells will be present after the 10 hours?
The laboratory that you are working in does not have a microscope or motility medium. Now, how will you determine if a disease-causing bacterium is plants is motile or non-motile?
Why is it important to follow sterile technique?
What can happen to cause gram-positive bacteria to appear gram-negative?
Chapter 2 Solutions
MICROBIOLOGY FUND.:CLINICAL APPR-ACCESS
Ch. 2.1 - Explain what the Five Is are and what each step...Ch. 2.1 - Discuss three physical states of media and when...Ch. 2.1 - Compare and contrast selective and differential...Ch. 2.1 - Provide brief definitions for defined media and...Ch. 2.1 - Medical Moment The Making of the Flu Vaccine: An...Ch. 2.1 - Prob. 1NPCh. 2.1 - Prob. 2NPCh. 2.2 - Prob. 5AYPCh. 2.2 - Prob. 6AYPCh. 2.2 - Prob. 7AYP
Ch. 2.2 - Give examples of simple, differential, and special...Ch. 2.2 - Prob. 3NPCh. 2.2 - Medical Moment Gram-Positive Versus Gram-Negative...Ch. 2 - The identities of microorganisms on our planet a....Ch. 2 - Prob. 2QCh. 2 - Often bacteria that are freshly isolated from a...Ch. 2 - Which of these types of organisms is least likely...Ch. 2 - Prob. 5QCh. 2 - Some bacteria can produce a structure called an...Ch. 2 - A fastidious organism must be grown on what type...Ch. 2 - Write a short paragraph to differentiate among the...Ch. 2 - Prob. 9QCh. 2 - Viruses are commonly grown in/on a. animal cells...Ch. 2 - Can you devise a growth medium with ingredients...Ch. 2 - There is a type of differential medium that can...Ch. 2 - Prob. 13QCh. 2 - Several bacteria live naturally in a material on...Ch. 2 - Archaea often grow naturally in extreme...Ch. 2 - Prob. 16QCh. 2 - After performing the streak plate procedure on a...Ch. 2 - You are a scientist studying a marsh area...Ch. 2 - Prob. 19QCh. 2 - Prob. 20QCh. 2 - You perform the special stain for bacterial...Ch. 2 - Prob. 1VC
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
- In the experiment by Bernard Davis, bacterial F+cells and F- cells were growing while separated by a filter. Filter pores allowed the passage of the liquid medium but not the bacteria cells. As a result: 1) prototype colonies grew well on minimal medium 2) F+ cells were converted to F- cells despite the physical separation 3)F- cells were converted F+ cells despite the physical separation 4)F+ cells were not converted to F- cells because of the physical separation 5) F- cells were not converted to F+ cells because of the physical separation 6)there was no growth of prototypes on minimal mediumarrow_forwardYou are incubating cells for 3 hours. The initial number of cells present in the sample were 102. After the incubation period, you find that the culture now has 104 cells. What is the generation time in minutes?arrow_forwardConsidering you can’t identify bacteria from a Gram stain, why might a physician perform a Gram stain on a sample before prescribing an antibiotic?arrow_forward
- You are using bacterium E.coli to synthesize a protein from recombinant DNA. The protein remains in the bacterium, so you must lyse the cell in order obtain the protein. Describe the steps you will take to disrupt the microbe.arrow_forwardIn a plate count, 1 mL of culture is spread on a plate and incubated for 24 hours. 250 colonies are counted. Answer the question below. there were _____cells in the 1 mL of culture that was spread on the plate. If the culture was diluted 1:100 prior to plating, how many cells were there per mL in the original culture? _________arrow_forwardDuring the process of conjugation between two bacteria, each bacterium transfers some of its DNA into the other bacterium. True Falsearrow_forward
- Which Part Of The Bacteria Actually Gets Stained?arrow_forwardThe presence of colonies on the bacterial plate post transformation suggests which of the following? Group of answer choices The colonies contain the transformed plasmid and are not resistant to the antibiotic The colonies contain the transformed plasmid and are resistant to the antibiotic The colonies do not contain the transformed plasmid and are not resistant to the antibiotic The colonies do not contain the transformed plasmid and are resistant to the antibioticarrow_forwardThe process of collecting characteristics of your unknown bacterium can be helped by the use of a dichotomous key. A dichotomous key is a flowchart that can be used to identify an organism. a) in your own words explain how to create and use a dichotomous key to identify unknown bacteriaarrow_forward
- Draw a 4-inch circle. Draw out the streaking pattern used to isolate single colonies on a plate.arrow_forwardHow to isolate collagen from fish skin in the laboratory? Please write down each step in detail. Which chemicals are used and how much used. Why are they used, write them in detail. the main steps are as follows Washing and cutting of raw material Chemical pretreatment Extraction Precipitation Freeze-dryingarrow_forwardA certain species of bacterium was grown with either glucose or sucrose as a carbon source. After a period of incubation, the number of cells (x106) was determined. Is there a difference in growth rate of the bacterium between the two carbon sources? Glucose Sucrose 6.3 5.8 5.7 6.2 6.8 6.0 6.1 5.1 5.2 5.8arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Essentials Health Info Management Principles/Prac...Health & NutritionISBN:9780357191651Author:BowiePublisher:Cengage
Essentials Health Info Management Principles/Prac...
Health & Nutrition
ISBN:9780357191651
Author:Bowie
Publisher:Cengage
Bacterial Structure and Functions; Author: Osmosis;https://www.youtube.com/watch?v=b15Hy3jCPDs;License: Standard youtube license