Classifications and Microbial Growth-BIOL-107

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

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

DNA squencing

Inoculation

Question 4
Which of the following is NOT a domain discovered by Carl Woese?

E. Coli
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

Question 7
The only type of cell on Earth for 2 billion years was

Eukaryotic
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 familiarisCanus is referred to as:
the species

the genus

the kingdom

Question 11
In the organism Canis familiarisfamiliaris is referred to as:

the genus
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

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

32

1000

8
Question 19
Nutrient broth is normally solid at the room temperature.

True
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

1/5
1/10

1/100

Classifications and Microbial Growth-BIOL-107
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