BIOL 2117 OPENSTAX MICROBIOLOGY
CHAPTER FOURTEEN ANTIMICROBIAL DRUGS
QUESTION SET 2026 ANSWERS INCLUDED
◉ Who proposed the Germ Theory of Disease?. Answer: Koch
◉ Which of the following is a Scientific Name. Answer: Streptococcus
Pyogenes
◉ You are observing a cell through a microscope and note that it has no
apparent nucleus. You conclude that it most likely. Answer: Has a
peptidoglycan cell wall
◉ Eukaryotic cells differ from prokaryotic cells because they. Answer:
Have a nucleus
◉ In the name MYCOBACTERIUM tuberculosis, tuberculosis is the.
Answer: Specific epithet
◉ You are looking at a white cottony growth on a culture medium.
Microscopic examination reveals it is multicellular. Which of the
following statements could NEVER be true about this organism?.
Answer: Is a bacterium
, ◉ Place the steps of the Gram stain in the correct order: 1-Alcohol-
acetone; 2-Crystal violet; 3-Safranin; 4-Iodine.. Answer: 2-4-1-3
◉ The purpose of the mordant in the Gram Stain is. Answer: To prevent
the crystal violet from leaving the cells
◉ What color are the gram-positive bacteria after adding the primary
stain in the Gram Stain?. Answer: Purple
◉ What color are the gram-negative bacteria after addition of the
mordant in the Gram stain?. Answer: Purple
◉ What color are the gram-negative bacteria after addition of the
decolorizing agent in the Gram stain?. Answer: Colorless
◉ What color are the gram-positive bacteria after the counterstain in the
Gram stain?. Answer: Purple
◉ What color are the gram-negative bacteria after completing the Gram
Stain?. Answer: Red
◉ Gram + and Gram - cells can be differentiated after which step in the
Gram stain?. Answer: Alcohol-acetone
CHAPTER FOURTEEN ANTIMICROBIAL DRUGS
QUESTION SET 2026 ANSWERS INCLUDED
◉ Who proposed the Germ Theory of Disease?. Answer: Koch
◉ Which of the following is a Scientific Name. Answer: Streptococcus
Pyogenes
◉ You are observing a cell through a microscope and note that it has no
apparent nucleus. You conclude that it most likely. Answer: Has a
peptidoglycan cell wall
◉ Eukaryotic cells differ from prokaryotic cells because they. Answer:
Have a nucleus
◉ In the name MYCOBACTERIUM tuberculosis, tuberculosis is the.
Answer: Specific epithet
◉ You are looking at a white cottony growth on a culture medium.
Microscopic examination reveals it is multicellular. Which of the
following statements could NEVER be true about this organism?.
Answer: Is a bacterium
, ◉ Place the steps of the Gram stain in the correct order: 1-Alcohol-
acetone; 2-Crystal violet; 3-Safranin; 4-Iodine.. Answer: 2-4-1-3
◉ The purpose of the mordant in the Gram Stain is. Answer: To prevent
the crystal violet from leaving the cells
◉ What color are the gram-positive bacteria after adding the primary
stain in the Gram Stain?. Answer: Purple
◉ What color are the gram-negative bacteria after addition of the
mordant in the Gram stain?. Answer: Purple
◉ What color are the gram-negative bacteria after addition of the
decolorizing agent in the Gram stain?. Answer: Colorless
◉ What color are the gram-positive bacteria after the counterstain in the
Gram stain?. Answer: Purple
◉ What color are the gram-negative bacteria after completing the Gram
Stain?. Answer: Red
◉ Gram + and Gram - cells can be differentiated after which step in the
Gram stain?. Answer: Alcohol-acetone
