Which of the following lists of structures consists entirely of features found in prokaryotic cells?
Select one:
a. mitochondria, cell wall, cilia, cell membrane
b. cell membrane, ribosome, cell wall, cilia
c. flagella, cell membrane, nucleus, mitochondria
d. ribosome, cell membrane, nucleus, cell wall
The bacterium in the image below can best be described as a
a. bacillus.
b. spirillum.
c. vibrio.
d. coccus.
Chloroplasts provide energy in a subset of
a. fungi.
b. archaea.
c. bacteria.
d. protists.
Which of these characteristics differentiates Domain Archaea from Domain Bacteria?
a. the presence of ribosomal RNA
b. the lack of internal organelles
c. the make-up of the cell wall
d. the absence of a nucleus
Which of the following structures can be found in both prokaryotes and eukaryotes?
a. nucleus
b. cell wall
c. mitochondria
d. chloroplast
Mixotrophic protists are capable of switching between different modes of
a. energy production.
b. growth.
c. reproduction.
d. locomotion.
The viral genome is encased within a
a. nucleus.
b. cell membrane.
c. capsid.
d. cell wall.
, The endosymbiotic theory suggests that which two eukaryotic organelles evolved from primitive
bacterial cells?
a. Golgi apparatus and nucleus
b. mitochondria and chloroplasts
c. nucleus and mitochondria
d. chloroplasts and nucleus
Cells that lack a nucleus are classified as
a. prokaryotes.
b. eukaryotes.
c. protozoans.
d. viruses.
LAB QUIZ 2
Defined media can best be described as a bacterial growth medium
a. containing only carbon and nitrogen.
b. with an unknown composition of nutrients.
c. capable of enriching for a particular type of bacteria.
d. consisting of a precise composition of nutrients.
When preparing media, unwanted organisms can be removed by
a. heating agar to 100°C to liquefy them.
b. placing media in a refrigerator to stop their division.
c. allowing agar to cool to 42°C to trap them.
d. using pressure and steam to kill them.
Stab tubes can be used to
a. determine the number of different species in a sample.
b. sterilize agar plates.
c. test the motility of a microorganism.
d. count the total number of bacteria in a sample.