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Microbiology Top Hat questions || with Error-free Solutions.
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  • Microbiology Top Hat
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  • Microbiology Top Hat

Fungi differ from bacteria in that fungi correct answers Have chitin cells walls The arguments supporting spontaneous generation were finally disproved by correct answers Pasteur Which of the following contributes to the emergence of new infectious diseases? correct answers Evolutionary chang...

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  • September 12, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • fungi differ from bacteria in that fungi

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  • Microbiology Top Hat
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Microbiology Top Hat questions || with Error-free Solutions.
Fungi differ from bacteria in that fungi correct answers Have chitin cells walls

The arguments supporting spontaneous generation were finally disproved by correct answers
Pasteur

Which of the following contributes to the emergence of new infectious diseases? correct answers
Evolutionary changes in existing organisms

Electron microscopy has greater _______ than light microscopy, because the wavelengths of
visible light are much larger than the wavelengths of electrons. correct answers Resolution

The use of the Gram stain in microbiology is important because it differentiates correct answers
bacterial cells with different types of cell walls

The Golgi complex functions to correct answers modify and transport proteins to the plasma
membrane

A microbe growing in a refrigerator is likely correct answers mesophilic

Which of the following elements is NOT correctly matched with its cellular function?
a) magnesium and potassium- required as cofactors for enzymes
b) phosphorus- used for production of carbohydrates
c) nitrogen- needed for amino acid synthesis
d) phosphorus- incorporated into nucleic acids correct answers b) used for production of
carbohydrates

The time between inoculation and the beginning of growth is usually called the correct answers
lag phase

Application of heat to living cells can result in all of the following EXCEPT
a) decreased thermal death time.
b) damage to nucleic acids
c) alteration of membrane permeability
d) denaturation of enzymes correct answers YIKES IDK IDK IDK **** WHY DIDNT I TAKE
NOTES

Which of the following methods is used to preserve food by slowing the metabolic processes of
foodborne microbes?
a)freezing
b) lyphilization
c) lyophilization
d) nonionizing radiation correct answers freezing (??)

Transfer RNA (tRNA) molecules

, a) are only present in the nucleus or eukaryotes
b) function to transfer ribonuleotides to RNA polymerase during transcription
c) function to transfer the correct amino acids to the ribosome during translation
d) contain codons that bind to ribosomes during translation correct answers UGH IDK

How are plasmids different than chromosomes?
a) Plasmids are composed of single-stranded DNA
b) Plasmids carry unimportant genes that are of little significance for the ecology and
metabolism of an organism
c) Plasmids are always smal, linear pieces of DNA
d) Plasmids contain genes that are NOT essential for cellular growth and replication correct
answers d) Plasmids contain genes that are NOT essential for cellular growth and replication

If two organisms have similar rRNA sequences, you can conclude that they
a) live in the same place
b) evolved from a common ancestor
c) will both ferment lactose
d) will have different G-C ratios correct answers b) they evolved from a common ancestor

Serological testing is based on the fact that
a) antibodies cause the formation of antigens
b) bacteria clump together when mixed with any antibodies
c) antibodies react specifically with an antigen
d) all bacteria have the same antigens correct answers c) antibodies react specifically with an
antigen

Viral replication is
a) dependent on the host cell's DNA and RNA
b) independent of the host cell's DNA but dependent on the host cell's enzymes and metabolism
c) independent of both the host cell's DNA but dependent on the host cell's enzymes and
metabolism.
d) dependent on the host cell's DNA, RNA, enzymes, and metabolism correct answers b)
independent of the host cell's DNA but dependent on the host cell's enzymes and metabolism

The growth of viruses in a culture is described as a one- step curve, because correct answers
virion numbers show no increase during intracellular replication and can only be counted after
the virions burst from the host cell

A virus that kills its host is said to be correct answers lytic

Bacteriophage have a ______ complex structure than animal viruses, because ______. correct
answers More/ the bacteriophage must penetrate the peptidoglycan cell wall

Oncogenic viruses correct answers Cause tumors to develop

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