Why is immersion oil often used when viewing specimens under the microscope?
A) To increase the resolution
B) To slow bacterial movement so you can see cells better
C) To stain the cells blue
D) To reduce the amount of heat reaching the slide from the light source
E) To prevent the smear from drying out
A) To increase the resolution
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Candida albicans is normally found in the vagina but does not usually cause disease because the acidic pH created by the lactobacilli prevents their overgrowth.
Answer the following statement true (T) or false (F)
In a cell,
a. energy-releasing reactions are coupled to energy-absorbing reactions. b. there are many more energy-absorbing reactions than energy-releasing reactions. c. energy-absorbing reactions and energy-releasing reactions are unlinked. d. energy-absorbing reactions are coupled to energy-releasing reactions via electron carriers. e. more energy is used up than is produced.
Which of the following characteristics refers to the microscope's ability to show two separate entities as separate and distinct?
A. refraction B. resolving power C. magnification D. All of these choices are correct.
Which of the following would produce the most ATP?
A. This prediction cannot be made from the information provided. B. Both cultures would produce the same amount of ATP. C. E. coli growing in a sealed glucose broth for 48 hours D. E. coli growing in a well-aerated glucose broth for 48 hours