1.
The concept of a prokaryote was first fully outlined in 1962 by
A. 
B. 
C. 
D. 
2.
The genus of bacteria that undergoes cell division in random planes, forming grapelike clusters of round bacteria, are the __________.
3.
Bacteria that do not have a fixed shape are said to be __________.
4.
A branched network of hyphae formed by the Actinomycetes is called a __________.
5.
Actinomycetes form long filaments called ___________.
6.
The term used to describe bacteria that are intermediate in shape between spherical and rod shaped is
A. 
B. 
C. 
D. 
7.
Bacterial cells that are variable in shape are called
A. 
B. 
C. 
D. 
8.
Square planar arrangement of cells that forms when round bacteria remain attached to each other during reproduction are called
A. 
B. 
C. 
D. 
9.
Flexible bacteria with a helical shape are called
A. 
B. 
C. 
D. 
10.
Rigid bacteria with a helical cell shape are called
A. 
B. 
C. 
D. 
11.
The term used to describe bacteria that are shaped like curved rods is
A. 
B. 
C. 
D. 
12.
The term used to describe bacteria that are rod shaped is
A. 
B. 
C. 
D. 
13.
The term used to describe bacteria that have a spherical shape is
A. 
B. 
C. 
D. 
14.
Sterol-like molecules called hopanoids are thought to be important for the structural integrity of many bacteria because of their suspected role in membrane stabilization.
15.
The cytoplasmic membrane of bacteria
A. 
Retains the cytoplasm and its contents.
B. 
Acts as a selectively permeable barrier, allowing some molecules to pass while preventing the
movement of others.
C. 
Is the major site of ATP synthesis in aerobes.
D. 
16.
The lipopolysaccharide (LPS) that is found in the outer membrane of gram-negative bacteria is also known as
A. 
B. 
C. 
D. 
17.
Which of the following is/are true of capsules?
A. 
They help bacteria escape phagocytosis by host cells.
B. 
They retain water and help prevent desiccation of the bacteria.
C. 
They prevent entry of many bacterial viruses.
D. 
18.
Proteins that are loosely associated with the cytoplasmic membrane are called __________ proteins.
A. 
B. 
C. 
D. 
19.
Proteins that are embedded within the cytoplasmic membrane and not easily extracted are called __________ proteins.
A. 
B. 
C. 
D. 
20.
Shrinkage of the plasma membrane away from the cell wall when the bacterium is placed in a hypertonic environment is called
A. 
B. 
C. 
D. 
21.
Lipids with polar and nonpolar ends are said to be
A. 
B. 
C. 
D. 
22.
Although penicillin inhibits peptidoglycan synthesis, bacterial cells will continue to grow normally in the presence of penicillin in a(n) __________ environment.
A. 
B. 
C. 
D. 
23.
All of the following statements about the periplasmic space are true except:
A. 
It is found only in gram-positive bacteria.
B. 
It is located between the plasma membrane and outer membrane of gram-negative bacteria.
C. 
T contains hydrolytic enzymes and binding proteins involved in nutrient acquisition.
D. 
24.
Which of the following protects bacteria from lysis in dilute solutions and helps to determine their cellular morphology or shape?
A. 
B. 
C. 
D. 
25.
Sortase is a protein enzyme of bacteria that
A. 
Plays a key role in directing proteins to the periplasm.
B. 
Catalyzes covalent attachment of some surface proteins to peptidoglycan.
C. 
Directs secretion of proteins across the outer membrane.
D. 
Functions by transporting flagellum proteins to their extracellular site of assembly.