Which of the following is false about strict aerobes?
a. they can detoxify reactive oxygen species (ROS)
b. they require oxygen for energy metabolism
c. in a nutrient broth tube, they would be found only at the top
d. all of these statements are true
Answer: d. all of these statements are true
You might also like to view...
An endocervical swab was collected from a 26-year-old woman with a purulent discharge. The Gram stain revealed the following: • Many white blood cells (WBCs) • Moderate gram-negative diplococci • Moderate gram-negative coccobacilli • Few yeast Based on these findings, what would be the next course of action?
a. Report the isolation of Neisseria gonorr-hoeae. b. Work up the yeast. c. Report the Gram stain, and follow up with culture. d. Request a new specimen; this one is con-taminated.
A yellow-pigmented, gram-negative rod on blood agar that is oxidase-positive, motile by wet mount, and has the ability to oxidize glucose, xylose, and sucrose is most likely which of the following?
a. Treponema b. Leptospira c. Borrelia d. Sphingomonas
Which of the following occurs fourth in the eutrophication process?
a. Bacteria use oxygen to decompose plant material. b. Prolific plant and algal growth occurs. c. Nutrients enter the body of water. d. A drop in oxygen occurs that may cause a fish kill. e. Plants and algae die during winter months.
Reinforcement would eventually
A. reduce the formation of hybrids. B. increase the fitness of hybrids. C. favor and therefore increase the formation of hybrids. D. have no effect on hybrid formation.