Question

please help solve

match the right curve letter in answer choices to the question correct answer Log no. of cells K Time which line best depicts a facultative anaerobe in the absence of O2? Choose... which line best illustrates the growth of a facultative anaerobe incubated aerobically? Choose... which line shows the growth of an obligate aerobe incubated anaerobically? Choose... which line best depicts an obligate anaerobe in the presence of O2? Choose...

Answer 1

Q1) A facultative anaerobe is the organism that generally prefer aerobic conditions but can survive anaerobic conditions temporarily. Therefore a facultative aerobe will show slow growth in absence of oxygen (Curve B)

A facultative anaerobe incubated aerobically will grow faster as they generally prefer aerobic conditions for growth (Curve A)

An obligate aerobe can survive only in aerobic conditions. Under anaerobic conditions, they show no growth (Curve C)

An obligate anaerobe grows only under anaerobic conditions. Under aerobic conditions they show no growth (Curve C)

Q2) I think it represents the capsule around the cell wall ( as it is neatly organized and tightly surrounding the cell) that protects the bacterial cell from phagocytosis.

Therefore option C is correct.

Thank you