EPPN 154 Test #2

Which of the following is not a characteristic of viruses? -Enveloped capsid -Cell wall with peptidoglycan -Non-enveloped capsid -Obligate parasite

-Cell wall with peptidoglycan

Which is the last step in virual replication? -packaging and assembly of virions -attachment -penetration -release of virus particles -genome replication, transcription, and translation

-release of virus particles

Antibiotics that inhibit cell wall synthesis primarily target which cell wall component? -The peptidoglycan -The plasma membrane -Peripheral membrane proteins -Integral membrane proteins

-the peptidoglycan

Can virused be "cultured"? -true -false

-true

Cool moist conditions will induce zoospore formation -true -false

-true

Which is the last stage of slime mold life cycle? -culmination of migration and formation of the fruiting body -amoebae in preaggregation stage -mature fruiting bdoy composed of stalk and head -migration of the flug formed from aggregrated amoebae

-mature fruiting body composed of stalk and head

Endosymbiosis has had a significant impact on evolution -true -false

-true

Zygomycota are: -most common type of fungi to observe when exploring outdoors -most common type of fungi to find growing on old bread -most common type of fungi to closely associate with plant root systems

-most common type of fungi to find growing on old bread

Fungi can be single cellular or multicellular -true -false

-true

Which of the following is a characteristic of fungi? -Able to ferment -Inhabit symbiotic associations with plants -Synthesize antibiotics -Parasites of plants and animals -All of the above

-All of the above

Which if the following is not a term used to characterize animal viral infections? -Virulent -Lysogenic -Transformation -Persistent -Latent

-Lysogenic

Whic of the following RNA serves as template for protein synthesis? -Messenger RNA -Transfer RNA -ribosomal RNA

-Messenger RNA

Which type of RNA serves as the genetic template (blueprint) utilized by the ribosome during the process of translation? -Transfer RNA (tRNA) -Messenger RNAs (mRNA) -Ribosomal RNAs (rRNA) -RNA polymerase

-Messenger RNAs (mRNA)

Which of the following characters does not describe a fungus? -Eukaryotic -Prokaryotic -Haploid -Diploid

-Prokaryotic

DNA synthesis is: -Replication -Transcription -Translation

-Replication

Which of the following is not a possible receptor for bacteriophage? -Cell wall lipopolysaccharides -Cell wall proteins -Ribosomes -Teichoic acids -flagella

-Ribosomes

Which of the following does not describe a possibility for the genetic makeup of viruses? -Single stranded RNA genome -Single stranded DNA genome -Single stranded DNA and RNA genome -Double stranded DNA Genome -Double stranded RNA genome

-Single stranded DNA and RNA genome

Genome replicaiton of viruses requires live cells -True -False

-True

Viruses hav DNA or RNA but never both as their genetic makeup -true -False

-True

The 3-nucleotide sequence (located on mRNA) that signals the beginning of a gene to be translated is known as: -a codon -a start codon -a stop codon -an anticodon

-a start codon

Phage is another term for which non-living, infectious agent? -an endospore -teichoic acid -a virus -a bacterium

-a virus

How do fungi get their nutrients? -adsorption -photosynthesis -absorption

-absorption

Which is the first stage of a slime mold life cycle? -migration of the slug formed from aggregated amoebae -amoebae n preaggregation stage -aggregation of amoebae -mature fruiting body composed of stalk and head

-amoebae in preaggregation stage

A persister cell is an individual bacterial cell that can survive -in an autoclave -an antibiotic treatment -the hot pools of Yellowstone National Park -the frigid temperatures of Moscow, ID

-an antibiotic treatment

Which is the first step in virual replication? -penetration -attachment -release -packaging and assembly of virions -genome replicaiton, transcription, and translation

-attachment

Endosymbiosis did not occur multiple times in multiple species because of the prevalence of mitochondria and chloroplasts in today's eukaryotic cells -true -false

-false

Endosymbiosis is the process by which mitcochondria and chloroplasts are removed from eukaryotic cells -true -false

-false

Hyphae do not grow in a polar fashion -true -false

-false

Viruses have susceptibility to a broad spectrum of antibiotics -true -false

-false

Zoosporangia cannot germinate directly -true -false

-false

viruses are always composed of capsid, envelope and nucleic acid. -true -false

-false

Viruses are susceptible to broad spectrum antibiotics -True -False

False