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
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Which of the following statement/s is/are true about gram positive bacteria
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- 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 aboveWhich statement about the cellular arrangments of bacteria is NOT correct? Spiral bacteria are typically single. A diplobacillus arrangement consists of two cocci adhering to one another. A chain of bacilli is called a streptobacillus arrangement. A cube-shaped arrangement of cocci is a sarcina. A square-shaped arrangement of cocci is a tetrad.Gram-negative bacteria are not killed by penicillin because they: do not have ribosomes. have an outer membrane layer covering their peptidoglycan cell wall. have two layers of peptidoglycan. do not have peptidoglycan. their ribosomes are protected with their own outer membrane layer.
- Which of the following is present in both gram-positive and gramnegativecell walls?a. an outer membrane. c. teichoic acidb. peptidoglycan d.lipopolysaccharidesWhich of the following is not considered a microorganism?a. algab. bacteriumc. protozoand. mushroomMicrobiologists use the Gram stain to differentiate among two groups of bacteria. How do Gram-positive and Gram-negative bacteria differ? Question 1 options: the presence or absence of peptidoglycan in the cell wall the presence or absence of muramic acid in the cell wall the presence or absence of outer plasma membrane the lipid composition of plasma membrane none of the above.
- Bacteria in the phylum Firmicutes are distinguished from the phylum Actinobacteria on the basis of their spiral shapes. the presence of LPS in their membranes. their Gram stain reaction. the low G + C content of their DNA. the high G + C content of their DNA.Which of the following is NOT a characteristic for bacteria in general? Plasma membrane has no saccharide units Sterols is one of its major outer membrane component Genome present in the nucleiod region of the cytosol Granules are mostly polysaccharide in natureDescribe 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
- If a scientist were trying to separate Klebsiella, Proteus, Shigella, and Vibrio into two separate categories, with two genera in each category, what is a characteristic they could use? Morphology Gram-reaction Oxygen requirement Motility ArrangementA microbiologist identifies a bacterium that is capable of degrading cellulose, lignin, chitin, latex, aromatic chemicals, and keratin. It produces metabolic byproducts that give soil a musty smell as well as some that can be used as antibiotics. Which of the following genera is being described? View Available Hint(s) for Part A Pseudomonas Campylobacter Neisseria StreptomycesPleomorphic bacteria are flexible spirals. have a slightly curved rod shape. are both bacillus and coccobacillus in shape. are roughly spherical. vary in size and shape.