LSU BIOL 2051 Microbiology Lab Midterm Organisms
Questions with 100% Verified Answers Latest Update
Question: Streptococcus mutans
Answer:
rod-shaped, filamentous; capsule produces dextran and levan which are used by the
bacteria to adhere to tooth enamel; not motile
Question: Staphylococcus epidermis
Answer:
spherical, single coccus; gram positive; very small and can hide within larger colony; not
motile
Question: Vibrio natriegens
Answer:
spherical, single coccus; motile
Question: Escherichia coli
Answer:
rod shaped, bacilli; no endospore; non acid-fast; 2.5 um; motile
Question: Spirosoma linguale
Answer:
spiral, single; gram negative; motile
, Question: Bacillus megaterium
Answer:
large, rod shaped; streptobacilli (chains); central endospore; 4 um
Question: Streptomyces coelicolor
Answer:
spherical, single coccus
Question: Micrococcus luteus
Answer:
spherical, diplococcus; motile
Question: Deinococcus radiodurans
Answer:
spherical, diplococcus; not motile
Question: Mycobacterium
Answer:
genus that are pathogenic to humans and animals; may grow very slowly or not at all on
artificial media; use in acid-fast stain; aerobic, non-endospore forming, nonmotile, rod
shaped bacteria that contain mycolic acids; some found in soil; cells take on compact,
wrinkled appearance; cell wall is hydrophobic
Questions with 100% Verified Answers Latest Update
Question: Streptococcus mutans
Answer:
rod-shaped, filamentous; capsule produces dextran and levan which are used by the
bacteria to adhere to tooth enamel; not motile
Question: Staphylococcus epidermis
Answer:
spherical, single coccus; gram positive; very small and can hide within larger colony; not
motile
Question: Vibrio natriegens
Answer:
spherical, single coccus; motile
Question: Escherichia coli
Answer:
rod shaped, bacilli; no endospore; non acid-fast; 2.5 um; motile
Question: Spirosoma linguale
Answer:
spiral, single; gram negative; motile
, Question: Bacillus megaterium
Answer:
large, rod shaped; streptobacilli (chains); central endospore; 4 um
Question: Streptomyces coelicolor
Answer:
spherical, single coccus
Question: Micrococcus luteus
Answer:
spherical, diplococcus; motile
Question: Deinococcus radiodurans
Answer:
spherical, diplococcus; not motile
Question: Mycobacterium
Answer:
genus that are pathogenic to humans and animals; may grow very slowly or not at all on
artificial media; use in acid-fast stain; aerobic, non-endospore forming, nonmotile, rod
shaped bacteria that contain mycolic acids; some found in soil; cells take on compact,
wrinkled appearance; cell wall is hydrophobic