COMPLETE QUESTIONS AND SOLUTIONS
GRADED A+
◉ Which of the following organisms shows the proper use of binomial
nomenclature. Answer: Escherichia coli (italicized)
◉ The type of microscope in which you would see brightly illuminated
specimens against a black background is. Answer: dark-field
◉ 6.5% NaCl broth favors the growth of Gram positive organisms,
while inhibiting the growth of Gram negative organisms, this media is.
Answer: selective
◉ A pure culture contains. Answer: only one identified species of
microorganism
◉ Which statement is true of all ions that are cations. Answer: The ion
has more protons than electrons
◉ Which of the following is not a polymer. Answer: glucose
, ◉ Koch's postulates are criteria used to establish that. Answer: a specific
microbe is the cause of a specific disease
◉ Which of the following is not a differential stain based on the
information below. Answer: methylene blue stain - one stain
◉ You have a solution with a pH of 6. What is the hydroxide ion
concentration [OH-]. Answer: 10^-8 M
◉ Which of the following functional groups is mismatched to the
organic compound in which it is typically contained. Answer: phosphate
- carbohydrates
◉ Which one is not a cause of infectious death worldwide. Answer:
Ebola
◉ MSA agar favors the growth of Gram positive bacteria, while
inhibiting the growth of Gram negative bacteria. S. aureus produce
yellow colonies when growing on MSA agar, while S. epidermis grows
pink. This agar is. Answer: A (selective) & B (differential)
◉ The five I's of studying microorganisms include all of the following
except. Answer: infection