Chapter 6 - Multiple Choice Flashcards
An organism that can synthesize all its required organic components from CO2 using energy from the sun is a:
a. photoautotroph
b. photoheterotroph
c. chemoautotroph
d. chemoheterotroph
a
Which of the following is not one of the six major elements microbes need to survive, grow, and reproduce?
a. oxygen
b. calcium
c. sulfur
d. nitrogen
e. carbon
b
A pathogen would most accurately be described as a:
a. parasite
b. commensal
c. saprobe
d. symbiont
a
A microbe that does not require oxygen for metabolism but will use it if available is a/n:
a. microaerophile
b. facultative anaerobe
c. obligate anaerobe
d. aerotolerant anaerobe
e. obligate aerobe
b
Which of the following is true of passive transport?
a. It requires a gradient
b. It uses the cell wall
c. It includes endocytosis
d. It only mover water
a
A cell exposed to a hypertonic environment will ______ by osmosis.
a. gain water
b. lose water
c. neither gain nor lose water
d. burst
b
Psychrophiles would be expected to grow:
a. in hot springs
b. on the human body
c. at refrigeration temperatures
d. at low pH
c
In a viable plate count, each ______ represents a _______ from the sample population.
a. cell; colony
b. colony; cell
c. hour; generation
d. cell; generation
b
