BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 28, Problem 3U
Gram-positive (+) and gram-negative (−) bacteria are characterized by differences in
a. the cell wall: gram+ have peptidoglycan, gram– have pseudo-peptidoglycan.
b. the plasma membrane: gram+ have ester-linked lipids, gram– have ether-linked lipids.
c. the cell wall: gram+ have a thick layer of peptidoglycan and gram– have an outer membrane.
d. chromosomal structure: gram+ have circular chromosomes, gram– have linear chromosomes.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Which of the following is NOT true about gram-positive and gram-negative bacteria?
a. None of the other four answers (all are true)
b. Gram-negatives have thicker cell walls than gram-positives
c. Cell walls are made of peptidoglycan in both gram-positives and gram-negatives
d. Peptidoglycan has a carbohydrate (NAG/NAM) backbone cross-linked by chains of amino acids
e. Gram-negatives have an outer membrane outside of the cell wall, composed of lipopolysaccharide
Which of the following statement about the bacterial cell wall is INCORRECT?
a. The cell wall is relatively nonpermeable and restricts the passage of sugars and amino acids.
b. Gram-positive cells have more peptidoglycan in theircell walls than Gram-negative cells.
c. Gram-negative cells have a membrane both inside andoutside their cell walls.
d. The cell wall establishes a bacterium’s shape as a coccus,bacillus, or spirillum.
Gram negative bacteria lose crystal violet colour
after alcohol treatment because of:
Select one:
a. Thick lipid layer, and thick peptidoglycan layer O
b. Thin lipid content, and thin peptidoglycan layer O
c. Thick lipid layer, and thin peptidoglycan layer
d. Absence of peptidoglycan layer
e. Thin lipid layer, and thick peptidoglycan layer O
Chapter 28 Solutions
BIOLOGY VOL. II
Ch. 28 - Prob. 1UCh. 28 - A cell that can use energy from the sun, and CO2...Ch. 28 - Gram-positive (+) and gram-negative () bacteria...Ch. 28 - Which of the following characteristics is unique...Ch. 28 - The horizontal transfer of DNA using a plasmid is...Ch. 28 - The disease tuberculosis is a. caused by a...Ch. 28 - Prokaryotes participate in the global cycling of...Ch. 28 - Which of the following is typically NOT associated...Ch. 28 - The mechanisms of DNA exchange in prokaryotes...Ch. 28 - The cell wall in both gram-positive and...
Ch. 28 - The three domains of life a. represent variations...Ch. 28 - Ulcers and tooth decay do not appear related, but...Ch. 28 - Bacteria lack independent internal membrane...Ch. 28 - Plants cannot fix nitrogen, yet some plants do NOT...Ch. 28 - If a new form of carbon fixation was discovered...Ch. 28 - Prob. 2SCh. 28 - Use of multiple antibiotics is not a bad idea if...Ch. 28 - Soil-based nitrogen-fixing bacteria appear to be...
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 do Gram-negative bacteria differ from Gram-positivebacteria?a. They are not pathogenic.b. Their peptidoglycan cell wall is thinner.c. Gram-negative bacteria cannot be Gram stained.d. They possess a single plasma membrane.e. Gram-negative bacteria do not photosynthesize.arrow_forwardA bacterium has the following characteristics:∙ It adheres to the human intestinal lining using a feature that protects it from phagocytes, bacteriophages, and dehydration∙ It can survive being boiled∙ It contains no plasmids and relatively little peptidoglycanWhich of the following characteristics allows this bacterium to adhere to the intestinal lining? Group of answer choices A. fimbriae B. pili C. an endospore D. a flagellumarrow_forwardDexaclomycin is an antibiotic that inhibits peptidoglycan formation. Given this information, what type of bacteria would dexaclomycin be most effective against? O a. Both Gram-negative and Gram-positive O b. Gram-negative c. O c. Gram-positive O d. This antibiotic would not be effective against either Gram-positive or Gram-negative bacteriaarrow_forward
- Match each group of bacteria with its best description. high G+C bacterial low G+C bacteria nonproteobacteria Proteobacteria deeply branching bacterial A. many thrive at high temperatures and in harsh environments; believed to similarities with ancient bacteria B. gram-positive group that includes the Actinobacteria C. gram-positive group that includes the Bacilli D. "gram-negative bacteria including the spirochetes, E. large group of gram-negative GFC group, and planctomy bacteria that includes five diverse classesarrow_forwardwas used by Joseph Lister to clean wounds and surgical instruments: A.Antibiotics b.Chlorine water Carbonic acid dAntitoxins e. Carbolic acid Which one of the following does not apply to the bacterial glycocalyx? It is not responsible for virulency b .It allows the organism to resist drying C. It may allow an organism to resist phagocytosis d.It is composed of carbohydrates E. It is enclosed by the cell wallarrow_forwardThe main difference between a gram-positive and a gram-negative bacteria, is that; a. Gram-positive has an extra outer layer of LPS on its cell wall Ob. Gram-negative has an extra outer layer of LPS on its cell wall Oc. Gram-negative does not get any color, when stained d. Gram-positive are too small to be visible under the microscopearrow_forward
- In an experiment Staphylococcus, streptococcus and enterococcus are bacteria that are stained dark blue/violet by Gram stain. Which statement is False? a. all are gram-positive bacteria 15 b. all are Gram-negative bacteria c. all are spherical bacteria d. all are prokaryotic cells e. all can cause a diseasearrow_forwardWhich of the following pairs is mismatched? a. catalase: hydrogen peroxide production b. bactericidal permeability-increasing protein: binds LPS and kills Gram-negative bacteria c. elastase: basement membrane degradation d. NADPH oxidase: superoxide radical production e. gelatinase: iron sequestration f. paracrine: acts on neighboring cells.arrow_forwardWhich of the following is present in both gram-positive and gram-negative cell walls?a. an outer membrane b. peptidoglycanc. teichoic acidd. lipopolysaccharidesarrow_forward
- The colonies growing on the surface of solid media represent: Select one: a. A group of different bacteria b. A single bacterium c. A single cell d. Many cells of the same bacterium e. Can not tellarrow_forwardA bacterium has the following characteristics: I. It adheres to the human intestinal lining using a feature that protects it from phagocytes , bacteriophages, and dehydration. II. It can survive being boiled. III. It contains no plasmids and relatively little peptidoglycan. Which of the following characteristics allows this bacteria to survive in a human who is taking penicillin pills? A. gram-negative cell wall B. peptidoglycan in the cell wall C. lipopolysaccharides in the cytoplasm D. long polypeptides in the cell wallarrow_forwardWe will perform a gram stain on our samples, so be sure to bring your instructions on gram staining. Will this procedure stain all cells? A. Yes, all prokaryotic and eukaryotic cells will be stained purple or pink. B. All prokaryotic cells will be stained. Eukaryotic cells will not be stained. C.Mycobacteria and a few other groups with special cell wall structures will not be stained. All other prokaryotic cells will be stained. Eukaryotic cells will be stained pink. D. Mycobacteria and a few other groups with special cell wall structures will not be stained. All other prokaryotic cells will be stained. Eukaryotic cells will be stained purple.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Bacterial Structure and Functions; Author: Osmosis;https://www.youtube.com/watch?v=b15Hy3jCPDs;License: Standard youtube license