Bio 4C/D: Viruses and Bacteria (Ch. 20 - HOLT)
Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
|
1.
|
We
know viruses are not alive because a. | they are not cellular. | c. | they cannot use energy. | b. | they cannot make
proteins. | d. | All of the
above | | | | |
|
|
|
2.
|
The
study of viruses is a part of biology because a. | they belong to the kingdom
Monera. | c. | they are living
organisms. | b. | they are about to become
extinct. | d. | they are active
inside living cells. | | | | |
|
|
|
3.
|
The
tobacco mosaic virus a. | is able to be crystallized. | c. | is smaller than a bacterium. | b. | causes disease
in tobacco plants. | d. | All of the
above | | | | |
|
|
|
4.
|
Viruses a. | are cellular organisms. | b. | reproduce only
in living cells. | c. | have nuclei and organelles. | d. | are surrounded
by a polysaccharide coat. | | |
|
|
|
5.
|
A
viral disease that causes painful swelling of a salivary gland is a. | mumps. | c. | polio. | b. | AIDS. | d. | measles. | | | | |
|
|
|
6.
|
Viruses are a. | photosynthetic. | c. | parasitic. | b. | chemosynthetic. | d. | All of the
above | | | | |
|
|
|
7.
|
A
typical virus consists of a. | a protein coat and a cytoplasm core. | b. | a carbohydrate
coat and a nucleic acid core. | c. | a protein coat and a nucleic acid
core. | d. | a polysaccharide coat and a nucleic acid
core. | | |
|
|
|
|
|
|
8.
|
Refer
to the illustration above. Which structure represents RNA? a. | structure
B | c. | structure
D | b. | structure
C | d. | structure
E | | | | |
|
|
|
9.
|
A
membranous envelope surrounding some viruses may be composed of a. | lipids. | c. | glycoproteins. | b. | proteins. | d. | All of the above | | | | |
|
|
|
10.
|
The
capsid of a virus is the a. | protective outer coat. | c. | nucleus. | b. | cell
membrane. | d. | cell wall and
membrane complex. | | | | |
|
|
|
11.
|
All
viruses have a. | cytoplasm. | c. | mitochondria. | b. | ribosomes. | d. | None of the above | | | | |
|
|
|
12.
|
An
animal virus enters its host cell by a. | being injected into the cell. | b. | penetrating a
rip in the cell wall. | c. | punching a hole in the cell membrane. | d. | endocytosis
across the cell membrane. | | |
|
|
|
13.
|
The
cycle of viral infection, replication, and cell destruction is called the a. | lysogenic
cycle. | c. | lytic
cycle. | b. | metabolic cycle. | d. | None of the above | | | | |
|
|
|
14.
|
A
pathogen is an agent that is a. | beneficial to humans. | c. | harmful to living organisms. | b. | harmful only to
plants. | d. | nearly
extinct. | | | | |
|
|
|
|
|
|
15.
|
Refer
to the illustration above. The shape represented by Organism A applies to the bacterial
genus a. | Streptococcus, which causes strep throat. | b. | Leptospira, which can cause urinary tract infections in
humans. | c. | Bacillus, which produces
antibiotics. | d. | Penicillium, which produces
penicillin. | | |
|
|
|
16.
|
Refer
to the illustration above. The shape represented by Organism C is called a. | coccus. | c. | bacillus. | b. | spirillum. | d. | filamentous. | | | | |
|
|
|
17.
|
Bacterial endospores a. | occur where there is plenty of available
food. | b. | allow certain species to survive harsh environmental
conditions. | c. | are similar to human tumors. | d. | can cause growth
abnormalities in plants. | | |
|
|
|
18.
|
Bacteria can be classified according to their a. | type of cell
walls. | c. | Gram-staining
characteristics. | b. | methods of obtaining energy. | d. | All of the above | | | | |
|
|
|
19.
|
photosynthetic bacteria : sunlight:: a. | chemotrophic
bacteria : dead organisms | b. | chemoautotrophic bacteria : inorganic
molecules | c. | photosynthesis : nitrification | d. | heterotrophic
bacteria : photosynthesis | | |
|
|
|
20.
|
Nitrogen-fixing bacteria a. | repair nitrogen-damaged legume roots. | b. | damage the
environment by using atmospheric oxygen to produce toxic nitrogen
compounds. | c. | convert atmospheric nitrogen into
ammonia. | d. | convert ammonia in the soil into nitrogen
gas. | | |
|
|
|
21.
|
Bacteria that cause botulism may survive in canned food for a long time
because a. | the can was left
open. | b. | some cans may contain viruses that protect the
bacteria. | c. | the bacteria may form endospores. | d. | sterilized cans
do not have enough oxygen to harm the bacteria. | | |
|
|
|
22.
|
Alexander Fleming, a British bacteriologist, is credited with the discovery
of a. | photosynthetic
bacteria. | c. | tuberculosis. | b. | antibodies. | d. | penicillin. | | | | |
|
|
|
23.
|
Antibiotics are ineffective against viral infections because a. | viruses are
protected inside their host cells. | b. | viruses have enzymes that inactivate the
antibiotics. | c. | antibiotics interfere with metabolic processes that viruses do
not perform. | d. | viral protein coats block the antibiotics from entering the
virus. | | |
|
|
|
24.
|
A
bacterial disease carried from rodents to humans by fleas is a. | tuberculosis. | c. | cholera. | b. | bubonic plague. | d. | Lyme disease. | | | | |
|
|
|
25.
|
Lyme
disease : ticks:: a. | tuberculosis :
food and feces | c. | typhus :
lice | b. | cholera : human
tubercles | d. | bubonic plague :
fleas | | | | |
|