Gram negative cells contain cell membrane and envelope (pick all that apply) Select one or more: a. stain red b. thick cell wall composed of peptidoglycan and lipopolysaccharides c. contain nuclear pores that transport proteins and nutrients into the mitochondria d. thin cell wall composed of lipopolysaccharides and peptidoglycan e. can result in endotoxin release and shock reactions f. All of the above pertain to eukaryotic cells g. All of the above pertain to gram positive cells h. thick cell wall composed of peptidoglycan

Gram negative cells contain cell membrane and envelope (pick all that apply) Select one or more: a. stain red b. thick cell wall composed of peptidoglycan and lipopolysaccharides c. contain nuclear pores that transport proteins and nutrients into the mitochondria d. thin cell wall composed of lipopolysaccharides and peptidoglycan e. can result in endotoxin release and shock reactions f. All of the above pertain to eukaryotic cells g. All of the above pertain to gram positive cells h. thick cell wall composed of peptidoglycan

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter22: Prokaryotes: Bacteria And Archaea

Section: Chapter Questions

Problem 2VCQ: Figure 22.16 Which of the following statements is true? Gram-positive bacteria have a single cell...

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A patient is experiencing high fever and body aches from an infected skin wound. You suspect a bacterial infection and perform a Gram stain from a pustular exudate why are you able to rule out an ENDOTOXIN as the cause of the fever and from the image, which organism do you suspect? The bacteria is purple(+).
Which of the following statement about normal flora is INCORRECT? Question 3 options: A On Sabouraud's agar, yeast will appear as small creamy colonies and mold will have large fuzzy colonies B Alpha and gamma hemolysis is produced by Streptococcus species C Normal flora never cause disease D A healthy person can carry pathogens like MRSA and Proprionibacterium acnes on our skin E The growth of S. aureus turns the color of MSA to yellow
Which of the following statements is true? Select one: O a. Gram-positive bacterial walls have a relatively thin layer of peptidoglycan anchored to the acids O b. Peptidoglycan is a fatty acid O c. The cell walls of bacteria are composed of peptidoglycan O d. Peptidoglycan is found mainly in the cell walls of fungi, algae and plants
A 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 wall
Which 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.
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.
The broth culture of Bacillus subtilis showed growth even after extended heating in a waterbath, while Serratia marcescens did not. This is due to: a. Bacillus subtilis is Gram-positive, while Serratia marcescens is Gram-negative b. Bacillus subtilis is a spore former c. the pigment of Serratia marcescens absorbs more radiation than other cells d. Bacillus subtilis has enzymes that protect it from ozone
Lipid A is a toxin commonly found in parasitic protists. gram-positive bacteria. viruses. gram-negative bacteria. fungal cell walls. mycoplasmas.
Describe the cross - section side view of a Gram - negative cell . Clearly state where the following would be located or write the letters in order of appearance from the outside to the inside . If any of these structures are not present , make sure to leave them out . A ) peptidoglycan ; ( B ) periplasm ; ( C ) porin ; ( D ) LPS ; ( E ) teichoic acids ; ( F ) plasma membrane : ( G ) outer membrane : ( H ) nucleoid
was 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 wall
Imagine a microbiologist performed a series of Gram stains but forgot to perform the destain step during the stains. Which type(s) of erroneous results would the scientist observe? Cells that are actually gram-negative would appear gram-positive Cells that are actually gram-positive would appear gram-negative Both gram-negative and gram-positive cells would appear to be the opposite
Which of the following statement/s is/are true about gram negative bacteria Cell wall has thin peptidoglycan layer Cell wall lipid content is very low Lipopolyscharride layer is present All of the above