PRESCOTTS GENERAL MICROBIOLOGY
11th Edition
ISBN: 9781307412420
Author: WILLEY
Publisher: MCG/CREATE
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 23.4, Problem 4CC
What kind of genetic evidence, in addition to 16S rRNA sequences, might have demonstrated that Negativicutes should be considered Gram positive?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
what kind of experiment can prove that azithromycin (antibiotics) has has an effect of on Quorum Sensing in Pseudomonas aeruginiosa.
Explain the importance of the Gram positve structure:- They contain a thick peptidoglycan layer and cytoplasmic lipid membrane.- These bacteria lack an outer membrane.- Have a lower lipid content and more teichoic acids.- They move around with the help of locomotion organs such as cilia and flagella.
Bacteroides and Escherichia are both gram-negative rods round in the large intestines. Why are they in different phyla?
Chapter 23 Solutions
PRESCOTTS GENERAL MICROBIOLOGY
Ch. 23.1 - MICRO INQUIRY Refer to table 24.2 and determine...Ch. 23.1 - MICRO INQUIRY Why do Mycobacterium spp. have...Ch. 23.1 - Prob. 3MICh. 23.1 - Prob. 1.1CCCh. 23.1 - Prob. 1.2CCCh. 23.1 - Retrieve, Infer, Apply Why are actinobacteria of...Ch. 23.1 - Prob. 1.4CCCh. 23.1 - Retrieve, Infer, Apply Compare the morphology and...Ch. 23.1 - Prob. 1.6CCCh. 23.1 - Prob. 1.7CC
Ch. 23.1 - Prob. 1.8CCCh. 23.1 - Retrieve, Infer, Apply List the distinguishing...Ch. 23.1 - Prob. 2.2CCCh. 23.1 - Prob. 2.3CCCh. 23.1 - Retrieve, Infer, Apply Describe three ways in...Ch. 23.1 - Briefly describe the defining properties of genera...Ch. 23.1 - Prob. 2.6CCCh. 23.1 - Examine the ingredients list on a commercial...Ch. 23.2 - What growth or survival advantage might this type...Ch. 23.2 - What is the net yield of ATP for each glucose that...Ch. 23.2 - Prob. 3MICh. 23.2 - Prob. 1CCCh. 23.2 - Prob. 2CCCh. 23.2 - Prob. 3CCCh. 23.2 - Prob. 4CCCh. 23.2 - How are various species of Streptococcus...Ch. 23.2 - Of what practical importance are leuconostocs?...Ch. 23.2 - What is the difference between -hemolysis and...Ch. 23.3 - The presence of an electron transport chain in a...Ch. 23.3 - In addition to its Gram-staining characteristics,...Ch. 23.3 - What are the two sources of electrons for the H....Ch. 23.4 - Prob. 1CCCh. 23.4 - Suggest why C. tetani uses a sodium motive force...Ch. 23.4 - Prob. 3CCCh. 23.4 - What kind of genetic evidence, in addition to 16S...Ch. 23 - Prob. 1RCCh. 23 - Prob. 2RCCh. 23 - Prob. 3RCCh. 23 - Prob. 4RCCh. 23 - Prob. 5RCCh. 23 - Prob. 6RCCh. 23 - Prob. 7RCCh. 23 - Prob. 8RCCh. 23 - Prob. 9RCCh. 23 - Prob. 10RCCh. 23 - Even though actinobacteria are high G + C...Ch. 23 - Given that mycolic acids are essential for...Ch. 23 - Prob. 3ALCh. 23 - Prob. 4ALCh. 23 - Prob. 5ALCh. 23 - What physiological properties might account for...Ch. 23 - S. aureus strains that are resistant to...Ch. 23 - Prob. 8AL
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
- How does the shape of a bacteria cell affect the bacteria’s survival in the environment? To answer this question: Calculate the surface-to-volume ratio of a coccus, assuming it is a perfect sphere. Where radius (r) = 0.91 μm. surface-to-volume ratio of a coccus = ________________ Calculate the surface-to-volume ratio of a bacillus, assuming it is a cylinder. Where r = 0.5 μm and height (h) = 4 μm surface-to-volume ratio of a bacillus = _________________________ The values provided for the radius of the coccus and the radius and height for the bacillus will give approximately the same volume for the coccus and the bacillus. However, the surface area will differ. Now compare the surface-to-volume ratio of a coccus to a bacillus calculated with these values. Which has the higher surface area for the same amount of volume? Considering the coccus and bacillus of equal volume from the question above, Which is more likely to survive in a dry environment? Explain your answer.…arrow_forwardList 2 reasons why a bacterium that should be gram positive might turn out gram negative.arrow_forwardMacConkey agar is often used to differentiate E. coli from other Gram-negative rods. The recipe for MacConkey agar is given in the table. Suppose you plated a mixed culture of Escherichia coli, Bacillus subtilis, and Streptococcus pyogenes onto a MacConkey agar plate. Which species would grow, and how would they appear? Why would the others NOT grow?arrow_forward
- Why did my B. subtitlis have a growth colonies on the MAC and EMB plate? There was an apparent growth, but no colour change on the MAC plate. The EMB plate had growth and a colour change of a deep, red colour. What does this say about about B. subtilis as a gram-positive and lactose fermentor ?arrow_forwardWhat are some reasons a Gram positive cell might appear Gram negative?arrow_forwardWhich one of the following statements about the Gram stain is false? A-In the Gram stain, a dye called crystal violet is used to stain the cells purple. B-Gram positive cells end up being stained purple. C-Gram negative cells have thinner peptidoglycan layers than Gram positive bacteria. D-In the Gram stain, alcohol is used to kill the bacteria E-Gram negative cells end up being stained pink or red.arrow_forward
- The smear prepared from the gram-positive control shown gram-negative results. Describe 3 reasons why this incorrect reaction could occur Can the possession of flagella by bacteria be utilized for classification purposes? Explain.arrow_forwardWhich of the following are TRUE of yeast? Yeast are Gram-positive cells.Yeast are Gram-positive cells. Yeast are Gram-negative cells.Yeast are Gram-negative cells. Yeast are neither Gram-positive or Gram-negative cells.Yeast are neither Gram-positive or Gram-negative cells. Yeast have a peptidoglycan cell wall.Yeast have a peptidoglycan cell wall. Yeast do not have a cell wall.arrow_forwardWhy is aseptic urine collection important when cultures are ordered? If you counted 20 colonies from a 0.01-ml inoculum of a 1:10 dilution of urine, how many organisms per milliliter of specimen would you report? Is this number significant? What can you learn from visual inspection of a urine specimen? How would you relate these to the microorganisms present in the sample? How are UTIs acquired/transmitted? Explain why E. coli is frequently implicated in cystitis in females.arrow_forward
- Which of the following statements is a reason why Acid-Fast Bacteria resist the Gram stain a) Because their cell wall architecture varies from both gram-negative and gram-positive bacteria. b) Because they lack the peptidoglycan layer. c) Because they have a thick peptidoglycan layer. d) Because they have a thick layer of fatty acids.arrow_forwardWhich of the following is TRUE regarding Gram negative bacteria? a- Their cell wall is composed of a large proportion of sugars b- Their cell wall does not absorb the Gram stain and turns pink c- Their cell wall is composed of a small proportion of peptidoglycan d- Two of the above statements are truearrow_forwardWhy might bacteria use quorum sensing to regulate genes needed for virulence? How might this reason be related to the rationale behind using quorum sensing to establish a symbiotic relationship?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
What Is A Virus ? ; Author: Peekaboo Kidz;https://www.youtube.com/watch?v=YS7vsBgWszI;License: Standard YouTube License, CC-BY