which of the following best describes the gram positive (+) cell wall:O the peptidoglycan chain wraps around the cell only 1-2 timesO a layer of polysacharrides and proteins ONLYhas an outer membrane enclosing a thin layer of peptidoglycanO the peptidoglycan chain wraps around the cell many timesO made of phospholipid bilayer only

Bacteria are classified based on the Gram staining properties. Actually this staining property is…

which of the following best describes the gram positive (+) cell wall: O the peptidoglycan chain wraps around the cell only 1-2 times O a layer of polysacharrides and proteins ONLY O has an outer membrane enclosing a thin layer of peptidoglycan O the peptidoglycan chain wraps around the cell many times O made of phospholipid bilayer only

which of the following best describes the gram positive (+) cell wall: O the peptidoglycan chain wraps around the cell only 1-2 times O a layer of polysacharrides and proteins ONLY O has an outer membrane enclosing a thin layer of peptidoglycan O the peptidoglycan chain wraps around the cell many times O made of phospholipid bilayer only

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter13: Diversity Of Microbes, Fungi, And Protists

Section: Chapter Questions

Problem 1ACQ: Figure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell...

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Figure 22.16 Which of the following statements is true? Gram-positive bacteria have a single cell wall anchored to the cell membrane by lipoteichoic acid. Pori ns allow entry of substances into both Gram-positive and Gram-negative bacteria. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin. Gram-negative bacteria have a cell wall made of peptidoglycan, whereas Gram positive bacteria have a cell wall made of lipoteichoic acid.
Figure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell wall formed from peptidoglycan. b. Gram-positive bacteria have an outer membrane. c. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin. d. Gram-negative bacteria have a cell wall made of peptidoglycan, while Gram-positive bacteria have a cell wall made of phospholipids.
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.
A 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 statements best describe the cell wall of this bacterium? Group of answer choices A. Its innermost layer is composed of a phospholipid bilayer. B. After it has been subjected to Gram staining, the cell should remain purple. C. It has an outer membrane of lipopolysaccharide. D. It is mostly composed of a complex, cross-linked polysaccharide.
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
Which of the following statement about 3 bacterial cell wall is incorrect Peptidoglycan consists of long polysaccharide chainscross-linked with amino acids. The cell wall establishes a bacterium as a coccus, bacillus, or spirillum. The cell wall is relatively nonpermeable and restricts the passage of sugars and amino acids. Gram- negative cells have a membrane both inside andoutside their cell walls. Gram-positive cells have more peptidoglycan in their cell walls gram-negative cells
Which of the following is present in both gram-positive and gram-negative cell walls?a. an outer membrane b. peptidoglycanc. teichoic acidd. lipopolysaccharides
Which of the following statement/s is/are true about gram positive bacteria Cell wall has thick peptidoglycan layer Cell wall lipid content is very low Lipopolyscharride layer is absent All of the above
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 researcher discovers a new species of bacteria in the Sahara Desert. The researcher is concerned the bacteria may be pathogenic (i.e., cause disease). What structural characteristic of the bacteria would help the researcher determine if the bacteria are pathogenic? Group of answer choices Presence of a cell wall Presence of a capsule Presence of a pilus Presence of a flagella
Which of these is most apt to be a prokaryotic cell wall function?a. transportb. motilityc. supportd. adhesion
All of these statements describe the Archaeal cell wall EXCEPT? O A. The backbone consists of NAG-NAT linkages • B. The peptide side chains don't contain D form amino acids • C. All of these actually accurately describe the cell wall D. The linkages in the backbone chain are beta-1,3 linkages O E. The cell wall functions as a semipermeable