BIOL 1407 EXAM 1 CHAPTERS 20-23
EXAM QUESTIONS AND ANSWERS
The general characteristics of viruses include___ - Correct Answers -E. a,b,c are
correct
A virus (virion) is composed of two basic parts; ____ and ____ - Correct Answers -B.
nucleic acid, protein capsid
which type of virus life cycle results in the replicated viruses causing a lysis of the host
cell - Correct Answers -A. lytic
Chickenpox (Varicella) and shingles are both caused by the same type of virus. What is
the name of this virus? - Correct Answers -A. varicella-zoster
A species name consists of which of the following word combinations? - Correct
Answers -A. genus, specific epithet
A prion is an infectious agent that is classified as a - Correct Answers -B. protein
Which statement about the taxonomic classification system is correct? - Correct
Answers -D. subspecies are the most specific category of classification
What invention lead to the discovery of viruses? - Correct Answers -D. electron
microscope
Approximately how many different species of life have been named and described on
Earth? - Correct Answers -B. about 2 million
Vaccines prepared to prevent viral infections are prepared by using - Correct Answers -
E. a,b,c are correct
The virus capsid is composed of small subunits called - Correct Answers -B.
capsomeres
___ is defined as the reconstruction and study of evolutionary relationships - Correct
Answers -C. systematics
What is the genome of a retrovirus - Correct Answers -B. ssRNA
, Today, most biologists group organisms based on which of the following
characteristics? - Correct Answers -A. DNA?RNA sequences
Viruses can be classified by all of the following ways EXCEPT - Correct Answers -B.
type of metabolic pathways
Prokaryotes that are ___ intake carbon dioxide from the atmosphere and get light
energy from the Sun. - Correct Answers -C. photoautotrophs
A _____ phylogenetic tree has a single lineage at it's base that represents the most
recent ancestor of the tree - Correct Answers -A. rooted
Which of the following terms is NOT correctly matched to its definition? - Correct
Answers -B. Clade- all of the species in a branched phylogram
The "spikes" on the capsid of a virus are used by the virus to bind to the cell membrane
of cells. What type of chemical are these spikes composed of? - Correct Answers -B.
glycoproteins
which of the following is the correct way to write the scientific name of the red maple? -
Correct Answers -A. Acer Rubrum
What color will members of the Domain Archaea be if you stain them with a Gram stain?
- Correct Answers -D. they do not take a gram stain
Bacteriophages are viruses that infect___ - Correct Answers -B. bacteria
The fact that infectious diseases are caused by specific microorganisms is known as the
- Correct Answers -C. germ theory
The capsule of bacteria - Correct Answers -E. a,b,c are correct
Prokaryotes are classified into the Domains ____ and ____ - Correct Answers -C.
Archaea, Bacteria
Approximately what percentage of microorganisms cause human disease? - Correct
Answers -A. <1%
Most bacteria are about ___ in size - Correct Answers -B. 1 um
The one chromosome of bacteria is found in which part of the bacterial cell - Correct
Answers -D. nucleoid
Which of the following bacterial cell parts is NOT correctly matched to its function -
Correct Answers -D. pili- cell excretion
EXAM QUESTIONS AND ANSWERS
The general characteristics of viruses include___ - Correct Answers -E. a,b,c are
correct
A virus (virion) is composed of two basic parts; ____ and ____ - Correct Answers -B.
nucleic acid, protein capsid
which type of virus life cycle results in the replicated viruses causing a lysis of the host
cell - Correct Answers -A. lytic
Chickenpox (Varicella) and shingles are both caused by the same type of virus. What is
the name of this virus? - Correct Answers -A. varicella-zoster
A species name consists of which of the following word combinations? - Correct
Answers -A. genus, specific epithet
A prion is an infectious agent that is classified as a - Correct Answers -B. protein
Which statement about the taxonomic classification system is correct? - Correct
Answers -D. subspecies are the most specific category of classification
What invention lead to the discovery of viruses? - Correct Answers -D. electron
microscope
Approximately how many different species of life have been named and described on
Earth? - Correct Answers -B. about 2 million
Vaccines prepared to prevent viral infections are prepared by using - Correct Answers -
E. a,b,c are correct
The virus capsid is composed of small subunits called - Correct Answers -B.
capsomeres
___ is defined as the reconstruction and study of evolutionary relationships - Correct
Answers -C. systematics
What is the genome of a retrovirus - Correct Answers -B. ssRNA
, Today, most biologists group organisms based on which of the following
characteristics? - Correct Answers -A. DNA?RNA sequences
Viruses can be classified by all of the following ways EXCEPT - Correct Answers -B.
type of metabolic pathways
Prokaryotes that are ___ intake carbon dioxide from the atmosphere and get light
energy from the Sun. - Correct Answers -C. photoautotrophs
A _____ phylogenetic tree has a single lineage at it's base that represents the most
recent ancestor of the tree - Correct Answers -A. rooted
Which of the following terms is NOT correctly matched to its definition? - Correct
Answers -B. Clade- all of the species in a branched phylogram
The "spikes" on the capsid of a virus are used by the virus to bind to the cell membrane
of cells. What type of chemical are these spikes composed of? - Correct Answers -B.
glycoproteins
which of the following is the correct way to write the scientific name of the red maple? -
Correct Answers -A. Acer Rubrum
What color will members of the Domain Archaea be if you stain them with a Gram stain?
- Correct Answers -D. they do not take a gram stain
Bacteriophages are viruses that infect___ - Correct Answers -B. bacteria
The fact that infectious diseases are caused by specific microorganisms is known as the
- Correct Answers -C. germ theory
The capsule of bacteria - Correct Answers -E. a,b,c are correct
Prokaryotes are classified into the Domains ____ and ____ - Correct Answers -C.
Archaea, Bacteria
Approximately what percentage of microorganisms cause human disease? - Correct
Answers -A. <1%
Most bacteria are about ___ in size - Correct Answers -B. 1 um
The one chromosome of bacteria is found in which part of the bacterial cell - Correct
Answers -D. nucleoid
Which of the following bacterial cell parts is NOT correctly matched to its function -
Correct Answers -D. pili- cell excretion
