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WorksheetsTaxonomy Microorganisms Review
Total questions: 26
Worksheet time: 14mins
A virus’s protein coat, or __________, protects the virus and helps trick a host cell to take in the virus.
carapace
cell wall
capsid
carpel
Viruses that infect bacteria are called...
bacteroids
retroviruses
bacilli
bacteriophages
The kind of infection in which viruses replicate and viral enzymes rupture the bacterium's cell wall is called the _____ cycle
lytic
lysogenic
lysosomic
lysozymic
The kind of viral infection in which a virus may remain inactive for many cell divisions is called the _________ cycle
lytic
lysogenic
lysosomic
lysozymic
Which characteristic distinguishes viruses from microorganisms such as bacteria and amoebae?
viruses are parasitic
viruses can evolve
viruses contain strands of DNA
viruses can reproduce only inside a host cell
Which statement is most useful for explaining why HIV is classified as a retrovirus?
The genetic information of the virus is copied from RNA to DNA
The genetic information of the virus is inserted into the DNA of the host cell
The genetic information of the virus is transcribed and translated to form new viral parts
The parts of the virus assemble into new viruses and burst from the host cell
The genetic material of a bacteriophage that is incorporated into the genome of a host bacterium, which separates to produce phages if activated, is called....
A virophage
A nucleotide-phage
A prophage
A retrophage
Which statement BEST explains why biologists now classify prokaryotes into two distinct categories, the bacteria and the archaea?
Archaea are small, cellular, and lack nuclei
Archaea and bacteria have different sizes and shapes
Genetically, archaea are in some ways more similar to eukaryotes than to bacteria
Archaea can live in high temperature environments
Which bacteria shape does NOT fit?
Bacilli
Cocci
Spirilla
Rotilla
A bacterium reproduces asexually by dividing to form two new bacterial cells. What is the name of the process by which most bacteria reproduce?
Meiosis
Mitosis
Budding
Binary Fission
When antibiotics were first developed, most infectious diseases could be controlled by them. Today, certain bacteria are resistant to many antibiotics. One possible explanation for this change is that...
the antibiotics killed most of the bacteria that did not have a genetic variation for resistance
the bacteria needed to change in order to produce more antibiotics
some of the bacteria learned how to resist the antibiotics
antibiotics have become weaker over the years
The graph represents the results of an investigation of the growth of three identical bacterial cultures incubated at different temperatures. Which inference can be made from this graph?
Temperature is unrelated to the reproductive rate of bacteria
Live activities in bacteria slow down at high temperatures
Bacteria cannot grow at a temperature of 5 C
Refrigeration will most likely slow the growth of these bacteria
Contain ribosomes
Viruses
Bacteria
Both viruses and bacteria
Bacteria that live in anoxic (no oxygen) environments are called...
aerobes
anaerobes
extremophobes
decomposers
What kind of Archaea would you find in places such as volcanoes and hot vents on the ocean floor?
Thermophiles
Cyanobacteria
Plasmophiles
Halophiles
The process of a bacteria extending a pilus to another bacteria and transferring a plasmid of DNA is called...
fission
fertilization
conjugation
transformation
The resting/dormant structure that helps bacteria survive suboptimal conditions is a...
endospore
exospore
capsid
peptidoglycan wall
Some bacteria use oil, or other pollutants, instead of glucose to perform cellular respiration. This process can help clean the environment. This process is called...
alternative respiration
anaerobic respiration
biotherapeudics
bioremediation
Why do gram positive bacteria retain a violet gram stain?
They have a thick capsule
They have a thick layer of peptidoglycan in their cell wall
They have a thin layer of peptidoglycan in their cell wall
They have free protons that are attracted to the violet stain
The Three Domains are...
Bacteria
Eubacteria
Archaea
Eukarya
Animalia
The system for naming organisms is known as:
Binomial Clature
Nomenclature
Binomial Nomenclature
None of the above
Check all that apply: The Scientific Name of an Organism must....
Be italicized
The whole first word is capitalized
Be in the Latin translation
Go in the order: Genus, Species
All of the above
Why do you never catch the same cold twice?
Plasma B cells remember the antigens
Memory B cells remember the antigens
Killer T cells kill the rhinovirus with efficiency
You get a vaccine for the common cold every year
What is the best definition of a pathogen?
A disease causing bacteria
A disease causing virus
A disease causing agent
An infectious protein particle
A useful Classification system does NOT
Show relationships
Reveal evolutionary trends
Use different scientific names for the same organism
Change the taxon of an organism based on new data
Which is NOT a kingdom?
Protista
Mammalia
Fungi
Eubacteria
