Biology: Test: Microbiology

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During a latent infection caused by a virus, the viral replication is...until some outside stimulant causes the virus to enter the lytic cycle.

postponed indefinitely

A virion is able to recognize the correct host cell when the...of the host cell and the viral attachment protein of the virion match up

receptor site

One of the limitations of the light microscope is the...

resolving power

Select the kingdoms where all eukaryotes are classified.

Protista Animalia Fungi Plantae

Agaricus bisporis

common edible mushroom

Viruses which typically have a lipid covering called an envelope are released from the host cell through...

viral budding

Select the false statement about diatoms.

Diatoms provide plants with a source of fertilizer.

The fuzzy-looking structures in a mold colony are called sporangium.

False

In common mold, the...is the tiny stalk-like structure that support the fruiting bodies where spores are produced and released.

stolon

Ceratocystis ulmi

elm tree parasite

Bacteria share genetic material through the processes called bacterial conjugation, transformation, and...

transduction

Bacteria which are part of the normal flora may cause disease when the immune system is compromised. This ailment is called a(n)...

opportunistic infection

Two parts of the Plasmodium erythrocytic cycle affect the human host in the follow ways. The...is responsible for the clinical symptoms of malaria in one human host, and the...releases spores into the human's blood that make it possible for the malaria to be passed on to a... and then to another human.

asexual portion , sexual portion, mosquito

Saccharomyces cerevisiae

baker's yeast

During the feeding phase of the cellular slime mold, the organism exists as an amoeba-like body of...that feed on organic material, bacteria, and fungus. If food becomes scarce, some of the cells of the slime mold emit a...that other slime mold cells react to and they gather into a larger, single slimy mass. This is the slug phase because the mass looks and acts much like a slug. From the slug phase,...will evolve and individual spores are released that are capable of becoming new individual amoeba-like cells, and they enter the feeding phase.

cells, chemicals, fruiting bodies

Thermoacidophiles thrive in...environments.

hot, acidic

The thread-like structures which are the building blocks of fungi are called...

hyphae

Through the process of... , an amoeba creates a food vacuole where digestion continues.

phagocytosis

Which substance is responsible for the red color in red algae?

phycoerythrin

The earth's oceans have a salinity of approximately 3.5% while the Dead Sea has a salinity of approximately...

30%-35%

The members of the phylum...are all parasitic.

Apicomplexa

...is composed of large deposits of the silicon exoskeletons of members of the phylum Bacillariophyta.

Diatomaceous earth

Fungi are prokaryotes.

False

Select reasons that members of the phylum Chytridiomycota are sometimes grouped in the kingdom Protista, rather than the kingdom Fungi.

Most members are aquatic. The reproductive cells have flagellum.

...is the material found in the bacterial cell wall that forms a molecular basis of the Gram stain

Peptidoglycan

Who is credited with discovering penicillin?

Sir Alexander Fleming

Select reasons why euglena have in the past been classified as protozoans.

They are motile. They have no cell wall. They have a pellicle.

A zygospore is the product of sexual reproduction.

True

The cell wall of fungi is composed of chitin, the same material found in the exoskeleton of a lobster.

True

Which phylum is NOT part of the kingdom Protista?

Zygomycota

Which item is NOT associated with the phylum Rhodophyta?

algin

Fungi are commonly grouped as sac fungi or club fungi, based on the structure of their fruiting bodies.

True

...is the structure within a protozoan where enzymes are secreted to digest.

food vacuole

The Anopheles mosquito is the...for malaria.

insect vector

Rickettsia is an example of an...which can only replicate inside a host cell.

obligate intracellular parasite

All known diseases caused by prions affect the...of the host organism.

nervous system

The insect vector for Plasmodium vivax is the

Anopheles mosquito

...is a group of bacteria that used to be classified as algae.

Cyanobacteria

...is caused by four known Plasmodium species which rely on a mosquito insect vector.

Malaria

Penicillium chrysogenum

produces common antibiotic

Select the kingdoms where all prokaryotes are classified.

Eubacteria Archaea

Ascomycota is an example of a kingdom.

False

First,...stain is applied, a series of rinses are used, and then a...stain is applied. A...bacteria culture will stain purple or blue, while a...bacteria culture will stain pink.

crystal violet safranine Gram-positive Gram-negative

...is the structure which is not part of the process of phagocytosis in a ciliate.

cytoplasmic bridge

The break-down of complex molecules into simpler ones is called...

fermentation

The kingdom...contains prokaryotic organisms.

Eubacteria


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