Classifications and Microbial Growth-BIOL-107
Classifications and Microbial Growth
Question 1
The discovery that cells were the building blocks of multicellular organisms is credited to:
Hooke
Schleiden and Schwann
Darwin
Pasteur
Question 2
In the time of Aristotle, organisms were categorized into _______.
5 kingdoms
3 domains
3 domains
1 kingdom
2 kingdoms
Question 3
Which method developed at the end of the 1980s lead to a major change in how scientists categorized organsims?
Bacterial Culture
Using the Electron Microscope
Using the Electron Microscope
DNA squencing
Inoculation
Question 4
Which of the following is NOT a domain discovered by Carl Woese?
E. Coli
Bacteria
Bacteria
Archaea
Eukarya
Question 5
Which three of the statements are in Virchow’s cell theory?
Living cells can arise from non-living matter.
A cell is the basic unit of life
All living things consist of cells
Only complex organisms are organized into cells.
All cell come from pre-existing cells
Question 6
The last universal common ancestor (LUCA) was eukaryotic.
True
False
False
Question 7
The only type of cell on Earth for 2 billion years was
Eukaryotic
Both
Both
Prokaryotic
Question 8
Cells in Eukarya and in Archaea all have genomic DNA that is wrapped around proteins called histones.
True
False
Question 9
Which of the following kingdoms is NOT under the domain Eukarya?
Fungi
Virus
Animals
Protista
Plants
Question 10
In the organism Canus familiaris, Canus is referred to as:
the species
the genus
the kingdom
Question 11
In the organism Canis familiaris, familiaris is referred to as:
the genus
the species
the species
the kingdom
Question 12
________ media contains ingredients that do not allow certain types of bacteria to proliferate, while allowing rapid growth of another type.
Differential
Selective
Question 13
A rapid test for a bacterium is what kind of determinative scheme?
Differential Staining
Culture Characteristics
Morphology
Biochemical
Question 14
Microbial growth refers to a change in
cell size
cell number
Question 15
Bacteria can grow well at any temperature.
True
False
Question 16
If you have a soil sample containing many different bacteria, what is a method that would allow you to isolate a single kind?
changing the pH of the sample
streaking a plate
streaking a plate
growing in nutrient broth
changing the growth temperature
Question 17
Microorganisms that require oxygen to survive are called
Obligate anaerobes
Aerotolerant anaerobes
Facultative anaerobes
Obligate aerobes
Question 18
Calculate how many bacterial cells are going to be formed after 3 generations starting with one cell
512
64
64
32
1000
8
Question 19
Nutrient broth is normally solid at the room temperature.
True
False
False
Question 20
If a scientist takes 1mL of bacteria and adds 14 mL of sterile water to dilute the bacteria, what is the dilution factor?
1/14
1/15
1/15
1/5
1/10
1/100
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