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?