Biology 104 Test #1 Chapters 20-22

Biology 104 Test Study Questions Set 1 Chapters 20 - 22
Created Jan 31, 2010
by craigjclemson
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Side ASide B
Prokaryotes reproduce _____.
by binary fission.
Which of the following is a mismatch?
Thermophiles live in extremely cold temperatures. They actually live in extremely high temperatures.
The archaea which are found living in extremely hot acidic environments such as hot springs,...
thermoacidophiles
Which of these is the best description of a virus?
hemical complexes of RNA or DNA protected by protein shel
Which of the following characterize prions?
All of the choices characterize prions. Prions are proteinaceous infectious particles that...
Endospores _____.
can survive for hundreds of years.
The _____ have a number of mechanisms to survive in environments that are high in salt.
halophiles
The primary source of genetic variability in prokaryotes is _____.
mutations
Which of these diseases could NOT be treated with antibiotics?
nfluenza is not treated with antibiotics because it is caused by a virus
Poop
Stinks

Study the life cycle diagram. Label B is the ________ life cycle.
 lysogenic
Which of the following is not characteristic of a prokaryote?
nucleus

Study the life cycle diagram. Label A is the ________ life cycle.
lytic
The innermost portion of a virus' structure is made up of
either DNA or RNA
A facultative anaerobe is
an organism that can metabolize effectively in the presence or absence of oxygen. (true)
What is the correct sequence of events in the lytic cycle of a bacteriophage infection?
Attachment, Viral DNA penetration, Biosynthesis, Maturation and Release
Some, but not all, virus capsids are surrounded by _________.
a membranous envelope
Archaea and eukarya _____.
All of these
Viruses always have at least _____.
an inner core of nucleic acid
Which can have a cellular form as well as an acellular (plasmodial) form with multiple nuclei?
slime molds
Green algae are believed to be closely related to the first plants because both groups _____.
possess chlorophylls a and b
he amoeboids, cellular slime molds and plasmodial slime molds are most closely related to the...
Opisthokonts
The main function of the contractile vacuole is
eliminating excess water.
Water molds have a cell wall that contains _____.
cellulose
DNA sequencing suggests that among the green algae, the __________ are most closely related...
Chara
Fungi associate with _____ to form lichens.
green algae
Diatoms share a more recent common ancestor with dinoflagellates than with water molds. (true...
false
Which is NOT part of the correct description of a protozoan?
Protozoans may be heterotrophic, motile, and eukaryotic. They are not multicellular
Which of the characteristic(s) apply to the Supergroup Archaeplastida?
All of the characteristics apply. Archaeplastida contain plastids, are unicellular and multicellular,...
Protists which combine autotrophic and heterotrophic nutritional modes are termed:
mixotrophic
Slime molds, found in the Supergroup Amoebozoa, were once classified as fungi. What characteristics...
Slime molds lack cell walls, are flagellated cells at certain stages of the life cycle and...
rown algae store their reserve food as _____.
laminarin
Protist reproduction
rotist reproduction may be asexual or any of these sexual cycles
Supergroup Opisthokinta includes all of the following organisms EXCEPT: animals, fungi,...
Supergroup Opisthokinta includes all of the following organisms except plants. It includes...
 red tide in the ocean is caused by an increase in the number of _____.
dinoflagellates
Protists are _____.
of two types; some are unicellular, others are multicellular
Plankton are
freshwater or marine organisms that are suspended on or near the surface of water.
Which of the following depend on pseudopods for locomotion?
ameboids

What type of life cycle is this (shown at right)?
haploid
The various forms of algae are NOT considered plants because they
lack plant structures such as true roots, stems, and leaves and do not produce embryos.
A reproductive structure that produces spores by meiosis is called a _____.
sporangium
_________ is a mixotrophic protozoan that is able to combine autotrophic and heterotrophic...
Euglena is a mixotrophic protozoan that is able to combine autotrophic and heterotrophic nutritional...
Dikaryotic cells of fungi
Dikaryotic cells of fungi contain paired haploid nuclei that fail to fuse for an extended period...
In differentiating fungi from plants and animals, which of the following statements is NOT...
t is true that animals are heterotrophic by ingestion while fungi are heterotrophic by absorption....

The organism pictured at below is a
shelf fungus.
A(n) _____ fungus is the source of the antibiotic penicillin.
sac
During zygospore asexual reproduction, all structures involved are _____.
haploid
Arbuscular mycorrhizal fungi invade plant roots, with some species forming mutualistic associations...
It is true that arbuscular mycorrhizal fungi invade plant roots, with some species forming...
ome fungi and bacteria act as _____ and keep chemicals cycling through the ecosystems.
decomposers
The fruiting body of the sac fungi is called the _____.
ascocarp
Which of the following structures are NOT involved in sexual reproduction?
Conidia are not involved in sexual reproduction
ungal cells have a cell wall containing _____.
 chitin
Many human diseases caused by sac fungi are acquired from the environment. (True or false)
True
Club and Sac fungi are more closely related than Club fungi and Zygospore fungi. (T or F)
Club and Sac fungi are more closely related than Club fungi and Zygospore fung
Types of lichens include _____.
All of these
Photosynthesis is done by the _____ component of lichen.
cyanobacterium
An asexual spore produced by a sac fungus or club fungus is called a(n)
conidiospore.
When asci swell they release _____, which can be windblown to other locations.
 ascospores
he difference between septate hyphae and nonseptate hyphae is
determined by whether the hyphae have cross walls or lack cross walls.

The organism pictured at below is a
cup fungus.
AM fungi are more closely related to Sac than Club fungi. (T or F)
 False
Fungi are thought to have been the first kind of eukaryotic cells that evolved. ( T or F)
False
The _____ produced by yeast during fermentation causes bread to rise.
CO2
Which of the fungal groups is mismatched with the asexual spore produced?
None are mismatched. They are all correctly matched. Ascomycota and Basidiomycota produce conidiospores,...
Club fungi produce fruiting bodies called _____.
basidiocarps
Historians believe that the people who accused their neighbors of witchcraft in Salem, Massachusetts...
Ergot
The part of a mushroom that we eat is usually the reproductive structure that supports the...
True
The term "dikaryotic" is based on the Greek root words meaning
two nuclei
Fungal infections are difficult to treat because
fungal and human cells are so similar that it is difficult to make fungal medications that...
All fungi share a common ancestor. ( T or F)
True
One of the long, branching filaments that collectively make up the mycelium of a fungus is...
hypha
There are no fungi that _____.
Do photosynthesis
A sexual spore produced by a sac fungus is called a(n)
ascospore.
Which of the following statements about mycorrhizae is/are true?
 Fungi may enter the cortex of plant roots but do not enter the cytoplasm of plant cells....
A mutualistic relationship between soil fungi and plants' roots is called a _____.
mycorrhizae
Species of ________ are known to consume jet fuel and wall paint.
sac fungi
Fungal cells have _____.
DNA and a nucleus
When the cap of an average gilled mushroom is cut off and placed on paper, a spoke-like print...
basidiospores
Yeasts
All of the choices are correct. Yeasts are members of the ascomycota, reproduce asexually by...
The presence of ____________ indicates that the air is healthy for humans to breathe.
lichens

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