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Which of the following statement/s is/are true about gram negative bacteria
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- 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 aboveMycoplasmas are pleomorphic bacteria. How do the unique structural characteristics of mycoplasmas relate to their bacterial morphology? Mycoplasmas have a low G + C genome content. Mycoplasmas appear Gram negative when a Gram stain is performed. Mycoplasmas lack a cell wall. Mycoplasmas form colonies with a fried-egg appearance.A is a sticky layer of polysaccharide or protein surrounding a bacterial cell, for the purpose of adhesion to a surface or to prevent dehydration. capsule slime layer peptidoglycan layer more than one of the above
- Mycoplasmas are bacteria that lack cell walls. On the basis of this structural feature, which statement concerning mycoplasmas should be true? They are gram-negative. They are subject to lysis in hypotonic conditions. They lack a cell membrane as well. They should contain less cellulose than do bacteria that possess cell walls. They possess typical prokaryotic flagella.The rough strain of Streptococcus pneumonia is not pathogenic because it lacks the present on the pathogenic smooth strain of Streptococcus pneumoniae. cell wall O endospore capsule gas vesicles peptidoglycan flagellumA particular bacterium is said to have a streptococcus morphology and arrangement. What does this mean? the cells are rod shaped and occur in clusters the cells are round and occur in chains the cells are round and occur in clusters the cells are spiral and occur singular
- What is the proper term to describe the shape of the bacteria in this picture? Cocci Bacillus O Vibrio Spirillum PleomorphicWhich 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 natureClostridium Botulinum Physical caracteristics Shape Arrangement Gram status? Acid fast ? Capsule? Produce Endospore? Environmental Condition required for the growth Oxygen Which of these is: Obligate aerobe, obligate anaerobe, facultative anaerobe. Temperature Which of these is: Psychrophile, Mesophile, Thermophile pH Which of these is: Acidophile, Neutralophile, Alkaliphile
- Bacterial capsule helps in adherence of bacteria to surface in its environment. It also protects the bacteria from cell death * BOTH statements are TRUE BOTH statements are FALSE FIRST statement is TRUE ; SECOND statement is FALSE FIRST statement is FALSE; SECOND statement is TRUEWhich one of the terms below is NOT a stage in the typical growth curve of a bacterial cell under ideal conditions in culture? O Exponential phase Lag phase Stationary phase Leg Phase Death PhaseWhich of the following is true about cell wall of gram-positive bacteria? O Not loss primary stain after alcohol O It consists of multiple peptidoglycan layer O Option 5 O It is thicker than that associated with gram-negative bacteria. All of these