,Name: ___________________________ Class: _________________ Date: __________
Chapter 1
1. The key characteristic that differentiates a prokaryote from a eukaryote is the
a. absence of proteins.
b. presence of DNA.
c. absence of membrane-bound organelles.
d. presence of a cell wall.
2. Which of the following demonstrates correct scientific notation of a bacterial
organism?
a. Staphylococcus Epidermidis
b. Staphylococcus epidermidis
c. Staphylococcus epidermidis
d. Staphylococcus Epidermidis
3. A microbe that is multicellular and photosynthetic, and has cells 50 μm in size,
would most likely be a(n)
a. fungus.
b. E. coli.
c. virus.
d. alga.
,4. In the figure shown, the organism indicated with the arrow could be a
a. virus.
b. bacterium.
c. macroscopic fungus.
d. large ameba.
5. Which of the following is NOT considered a beneficial product of
microorganisms?
a. nitrogen fixation
b. production of fermented foods
c. synthesis of vitamins
d. causative agents of disease
6. Which of the following has been used for gene therapy?
a. viruses
b. archaea
c. protozoa
d. fungi
, 7. Which of the following would you NOT expect to find inhabiting the human
digestive tract?
a. yeast
b. algae
c. bacteria
d. intestinal viruses
8. The organism shown in the figure below is a(n)
a. virus.
b. bacterium.
c. archaeon.
d. eukaryote.
9. Which of the following methods for classifying life forms is MOST accurate in
distinguishing between two closely related rod-shaped bacterial organisms,
Salmonella typhimurium and Escherichia coli?
a. physical characteristics
b. method of reproduction
c. DNA sequence comparison
d. environmental habitat
Chapter 1
1. The key characteristic that differentiates a prokaryote from a eukaryote is the
a. absence of proteins.
b. presence of DNA.
c. absence of membrane-bound organelles.
d. presence of a cell wall.
2. Which of the following demonstrates correct scientific notation of a bacterial
organism?
a. Staphylococcus Epidermidis
b. Staphylococcus epidermidis
c. Staphylococcus epidermidis
d. Staphylococcus Epidermidis
3. A microbe that is multicellular and photosynthetic, and has cells 50 μm in size,
would most likely be a(n)
a. fungus.
b. E. coli.
c. virus.
d. alga.
,4. In the figure shown, the organism indicated with the arrow could be a
a. virus.
b. bacterium.
c. macroscopic fungus.
d. large ameba.
5. Which of the following is NOT considered a beneficial product of
microorganisms?
a. nitrogen fixation
b. production of fermented foods
c. synthesis of vitamins
d. causative agents of disease
6. Which of the following has been used for gene therapy?
a. viruses
b. archaea
c. protozoa
d. fungi
, 7. Which of the following would you NOT expect to find inhabiting the human
digestive tract?
a. yeast
b. algae
c. bacteria
d. intestinal viruses
8. The organism shown in the figure below is a(n)
a. virus.
b. bacterium.
c. archaeon.
d. eukaryote.
9. Which of the following methods for classifying life forms is MOST accurate in
distinguishing between two closely related rod-shaped bacterial organisms,
Salmonella typhimurium and Escherichia coli?
a. physical characteristics
b. method of reproduction
c. DNA sequence comparison
d. environmental habitat
