chapter 12 and 13
7 and 8 Sporangiospore and Zygospore
in table 12.1, which of these spores are characteristic of Rhizopus?
humans are the intermediate host and mosquitoes are both the definitive host and vector
in the malaria parasite life cycle
plasmodial slime mold
in the microscope, you observe miltinuleated amoeba cells with sporangia that forms spores. This is a
a segmented genome
what contributes to antigenic shift in influenza viruses?
intestinal contents
what do tapeworms eat?
houseflies
which of the following arthropods does NOT transmit diseases by sucking blood from a human host?
green algae
which of the following groups of algea does not produce compounds that are toxic to humans?
ascomycete
which of the following is a nucleated, unicellular organism that, if you changed the incubation temperature would form filaments with conidiospores?
DNA Polymerase
which of the following is most likely a product of an early gene?
biochemical test
which of the following is not used to as criterion to classify viruses?
Euglena
which of the following organism is photosutrophic protozoan?
mosquito-Pneumocystis
which of the following pair is mismatched?
2 and 5 sporangiospore- formed within hyphae chlamydoconidium- formed in a sac
which of the following pairs are mismatched?
anamorphs--lack Spores
which of the following pairs is mismatched?
cestodes-all are free living
which of the following pairs is mismatched?
coenocytic hyphae - hyphae with cross-walls
which of the following pairs is mismatched?
green algae- prokaryotic
which of the following pairs is mismatched?
2,3,4,1 Dna synthesis, Transcription, Translation, Maturation
which of the following places these items in the correct order for DNA-virus replication?
all are parasites
which of the following statement about helminths is FALSE?
viruses use their own catabolic enzymes
which of the following statements about viruses are false?
fungal spores are highly resistant to heat and chemical agents
which of the following statements is FALSE?
it causes lysis of host cells
which of the following statements is NOT true of lysogeny
most are pathogenic for humans
which of the following statements regarding fungi is FALSE?
Nearly all protozoa cause disease
which of the following statements regarding protozoa is FALSE?
reproductive system
which of the following tends to be more complex in a parasitic helminth than in free-living helminths?
sythesis of double stranded RNA from an RNA template
which of the following would be the first step in biosynthesis of a virus with a minus strand of RNA?
only found on nonenveloped viruses
which of the statements about viral spikes is FALSE?
presence of receptor sites on the cell membrane
A virus's ability to infect an animal cell depends primarily upon the
release
An envelope is acquired during which of the following steps?
cold sores
An example of a latent viral infection is
Fungus
Ringworm is caused by a
they have chlorophyll
Which of the following statements about the oomycote algae is FALSE?
the prophage makes the host cell immune to infection by other phages
Which of the following statements is FALSE?
the virus causing the death of the infected cells in the patient
a lytic virus has infected a patient. Which of the following would best describe what is happening inside the patient?
has the same genetic information and ecological niche
a viral species is a group of viruses that
infectious piece of RNA without a capsid
a viriod is a
Adult
A definitive host harbors which stage of a parasite?
the disease process occurs gradually over a long period of time
A persistent infection is one in which
have highly developed digestive and nervous systems
All of the following are characteristic of theplatyhelminthes EXCEPT that they
lysozyme
Bacteriophages derive all of the following from the host except
Mosiquito-definitve host
Below are paired items referring to the heart worm Dirofilaria immits . Which of the pairs is mismatched?
continuous cell lines can be maintained through an indefinite number of generations
Continuous cell lines differ from primary cell lines in that
DNA Polymerase
Generally, in an infection caused by a DNA-containing virus, the host animal cell supplies all of the following except
lack mitochondria
Giardia and trichomonas are unusual eukaryotes because they
gastrointestinal route
Helminthic diseases are usually transmitted to humans by
2 and 6 Ascospore and conidospore
In table 12.1, which of these spores are characteristic of Penicillum?
RNA- dependent RNA polymerase
Most RNA viruses carry which of the following enzymes
causing tumors to develop
Oncogenic Viruses
can tolerate low-moisture conditions
Seventeen patients in ten hospitals had cutaneous caused by Rhizopus. In all seventeen patients, Elastoplast bandages were placed over sterile gauze pads to cover wounds. fourteen of the patients had surgical wounds, two had venous line insertion sites, and one had a bite wound. Lesions present when the bandages were removed ranged from vesiculopustular eruptions to ulcerations and skin necrosis requiring debridement. Fungi are most likely than bacteria to contaminate bandages because they
phage DNA is incorporated into host cell DNA
The definition of lysogeny is
cooking fish eating
The life cycle of the fish tapeworm is similar to that of the beef tapeworm. Which of the following is the most effective preventive measure?
humans are the definitive host and crayfish are the intermediate host
Three weeks after a river rafting trip, three family members experienced symptoms of coughing, fever, and chest pain. During the rafting trip, the family had consumed crayfish that they caught along the river banks. An examination of the patients' sputum revealed helminths eggs, and serum samples were positive for antibodies to Paragonimus. All of the family members recovered following treatment with praziquantel. In the Paragonimus.life cycle,
culture media
Which of the following is NOT utilized to culture viruses
PrPSC
Which of the following is necessary for replication prion
eliminate Anopheles
Which of the following is the most effective control for mallar
they cannot reproduce themselves outside a host
Which of the following statements provides the most significant support for the idea that viruses are nonliving chemicals
Lichens are very tolerant to pollution
Which of the following statements regarding lichens is FALSE?
All are unicellular
Which of the following statesments about algae is FALSE?
synthesis of DNA
Which one of the following steps does not occur during multiplication of a picornavirus?
cellular slime mold
You observe a mass ambeoba-like cells that swarm together, form a stalk, and produce spores. this is a
plaque
a clear area against a confluent "lawn" of bacteria is called a
They are classified as plants
all of the following are characteristic of algae EXCEPT
prion
an infectious protein
oomycote alga
assume you have isolated a mutlicellular heterotrophic organism that produces coenocytic hyphae, motile zoospores, and cellulose cells walls. It is most likely a
biosynthesis
bacteriophages and animal viruses do not differ significantly in which one of the following steps?
viruses are not composed of cells
how do viruses differ from bacteria?
intermediate host
if a larva of Echinococcus granulosus is found in humans, humans are the
b
in figure 13.1, which structure is a complex virus
5 Chlamydoconidium
in table 12.1, which if a thick-walled spore formed as a segment within a hypha?
latent viruses
some viruses, such a human herpesvirus 1, infect a cell without causing symptoms. These are called
they distribute nutrients by cytoplasmic streaming
the cells of plasmodial slime molds can grow to several centimeters in diameter because
cysticercus
the encysted larva of the beef tapeworm is called a
synthesis of -RNA strand
the following steps occur during biosynthesis of a + strand RNA Virus. What is the third step?
uncoating
the following steps occur during multiplication of herpesviruses. Which is the third step?
synthesis of double stranded DNA
the following steps occur during multiplication of retroviruses. Which is the forth step?
budding
the mechanism whereby an enveloped virus leaves a host cell is called
cancer following injection of cell-free filtrates
the most conclusive evidence that viruses cause cancers is provided by
caposomers
the structures illustrated in figure 13.1 are composed of
togavirus
this virus has a single, positive strand of RNA,and possesses an envelope. To which group does it most likely belong?
