Microbial Growth & Control of Microbial Growth

$100

$200

$300

$400

$500

$100 $100$100 $100

$200 $200 $200 $200

$300 $300 $300 $300

$400 $400 $400 $400

$500 $500 $500 $500

Physical Requirements

for Growth

ChemicalRequirements

for Growth

Growth of Bacterial Cultures

Control of Growth

Miscellaneous

FINAL ROUND

Topic 1: Physical Requirements

$100 Question

How is a Psychrophile different from a Psychrotroph?

BACK TO GAME

ANSWER

Topic 1: Physical Requirements

$100 Answer

How is a Psychrophile different from a Psychrotroph?

A Psychrophile is a microbe that can grow at C, grows optimally at 15C, and usually won’t grow at 25C.

A Psychrotroph is a microbe that can grow at C, grows optimally at 20-30C, and usually won’t grow above 40C.

BACK TO GAME

Topic 1: Physical Requirements

$200 Question

Which one of the following is most likely to cause food spoilage in your refrigerator?

a. Psychrophile

b. Thermophile

c. Psychrotroph

d. Mesophile

BACK TO GAME

ANSWER

Topic 1: Physical Requirements

$200 Answer

Which one of the following is most likely to cause food spoilage in your refrigerator?

a. Psychrophile

b. Thermophile

c. Psychrotroph (correct answer)

d. Mesophile

BACK TO GAME

Topic 1: Physical Requirements

$300 Question

What type of organism is Listeria monocytogenes?

a. Psychrophile

b. Thermophile

c. Psychrotroph

d. Mesophile

BACK TO GAME

ANSWER

Topic 1: Physical Requirements

$300 Answer

What type of organism is Listeria monocytogenes?

a. Psychrophile

b. Thermophile

c. Psychrotroph (correct answer)

d. Mesophile

BACK TO GAME

Topic 1: Physical Requirements

$400 Question

What happens to most cells when they are exposed to a salt water solution?

A)Nothing

B)The cell swells and may undergo osmotic lysis

C)The cell immediately divides

D)The cell undergoes plasmolysis and shrinks

BACK TO GAME

ANSWER

Topic 1: Physical Requirements

$400 Answer

What happens to most cells when they are exposed to a salt water solution?

A)Nothing

B)The cell swells and may undergo osmotic lysis

C)The cell immediately divides

D)The cell undergoes plasmolysis and shrinks (correct answer)

BACK TO GAME

Topic 1: Physical Requirements

$500 Question

Where might a hyperthermophile live?

a. At the ocean floor

b. In a human body

c. In acid

d. In salt water

BACK TO GAME

ANSWER

Topic 1: Physical Requirements

$500 Answer

Where might a hyperthermophile live?

a. At the ocean floor (correct answer)

b. In a human body

c. In acid

d. In salt water

BACK TO GAME

Topic 2: Chemical Requirements

$100 Question

Chemoautotrophs and photoautotrophs derive their carbon from

a. Carbon dioxide

b. Proteins

c. Lipids

d. Carbohydrates

BACK TO GAME

ANSWER

Topic 2: Chemical Requirements

$100 Answer

Chemoautotrophs and photoautotrophs derive their carbon from

a. Carbon dioxide (correct answer)

b. Proteins

c. Lipids

d. Carbohydrates

BACK TO GAME

Topic 2: Chemical Requirements

$200 Question

Microbial metabolism is responsible for biogeochemical cycles.

A)True

B)False

BACK TO GAME

ANSWER

Topic 2: Chemical Requirements

$200 Answer

Microbial metabolism is responsible for biogeochemical cycles.

A)True (correct answer)

B)False

BACK TO GAME

Topic 2: Chemical Requirements

$300 Question

In which of the above tubes are Facultative Anaerobes growing?

BACK TO GAME

ANSWER

A EDCB

Topic 2: Chemical Requirements

$300 Answer

In which of the above tubes are Facultative Anaerobes growing?

Correct Answer: BBACK TO GAME

A B C D E

Topic 2: Chemical Requirements

$400 Question

All organisms require amino acids to make proteins. How might amino acids be acquired?

a. Kreb cycle intermediates

b. Environment

c. Glycolysis intermediates

d. All of the above

BACK TO GAME

ANSWER

Topic 2: Chemical Requirements

$400 Answer

All organisms require amino acids to make proteins. How might amino acids be acquired?

a. Kreb cycle intermediates

b. Environment

c. Glycolysis intermediates

d. All of the above (correct answer)

BACK TO GAME

Topic 2: Chemical Requirements

$500 Question

Give an example of a biofilm residing inside the body of an animal.

BACK TO GAME

ANSWER

Topic 2: Chemical Requirements

$500 Answer

Give an example of a biofilm inside the body of an animal.

Examples include: digestive systems, bacterial endocarditis, on teeth

BACK TO GAME

Topic 3: Growth of Bacterial Cultures

$100 Question

Generation time can best be defined as

a. The length of time it takes for lag phase

b. The duration of log phase

c. The length of time it takes for a cell to divide

d. The amount of time it takes the cell to replicate its chromosome

BACK TO GAME

ANSWER

Topic 3: Growth of Bacterial Cultures

$100 Answer

Generation time can best be defined as

a. The length of time it takes for lag phase

b. The duration of log phase

c. The length of time it takes for a cell to divide (correct answer)

d. The amount of time it takes the cell to replicate its chromosome

BACK TO GAME

Topic 3: Growth of Bacterial Cultures

$200 Question

Why can’t obligate anaerobes live in the presence of oxygen (yes, they die, but why?)

BACK TO GAME

ANSWER

Topic 3: Growth of Bacterial Cultures

$200 Answer

Why can’t obligate anaerobes live in the presence of atmospheric oxygen (yes, they die, but why?)

Correct answer: Obligate anaerobes do not produce the enzymes (superoxide dismutase, catalase, peroxidase) necessary to neutralize the toxic forms oxygen takes in the cell

BACK TO GAME

Topic 3: Growth of Bacterial Cultures

$300 Question

What is happening in cell A?

BACK TO GAME

ANSWER

A

B

C

Topic 3: Growth of Bacterial Cultures

$300 Answer

BACK TO GAME

What is happening in cell A?

Correct answer:

DNA Replication

A

B

C

Topic 3: Growth of Bacterial Cultures

$400 Question

Which of the areas in the bacterial growth curve represent the lag phase?

BACK TO GAME

ANSWER

Topic 3: Growth of Bacterial Cultures

$400 Answer

Which of the areas in the bacterial growth curve represent the lag phase?

Correct Answer: 1BACK TO GAME

Topic 3: Growth of Bacterial Cultures

$500 Question

Why did the population level off at area 3?

BACK TO GAME

ANSWER

Topic 3: Growth of Bacterial Cultures

$500 Answer

Why did the population level off at area 3?

Correct answer: An increase in wastes and decrease in nutrients in an enclosed environment.

BACK TO GAME

Topic 4: Control of Microbial Growth

$100 Question

In this graph, an antimicrobial agent was applied. Was this antimicrobial agent

Bacteriostatic or BactericidalBACK TO GAME

ANSWER

Topic 4: Control of Microbial Growth

$100 Answer

In this graph, an antimicrobial agent was applied. Was this antimicrobial agent

Bacteriostatic (correct answer)BACK TO GAME

Topic 4: Control of Microbial Growth

$200 Question

What will increase the effectiveness of most antiseptics and disinfectants?

A)Large number of microbes present

B)Presence of endospores

C)Presence of organic matter

D)Presence of biofilms

E)None of the aboveBACK TO GAME

ANSWER

Topic 4: Control of Microbial Growth

$200 Answer

What will increase the effectiveness of most antiseptics and disinfectants?

A)Large number of microbes present

B)Presence of endospores

C)Presence of organic matter

D)Presence of biofilms

E)None of the above (correct answer)

BACK TO GAME

Topic 4: Control of Microbial Growth

$300 Question

What works better- Dry heat or Moist heat?

BACK TO GAME

ANSWER

Topic 4: Control of Microbial Growth

$300 Answer

What works better- Dry heat or Moist heat?

Moist heat (correct answer)

BACK TO GAME

Topic 4: Control of Microbial Growth

$400 Question

Radiation primarily affects

A)Plasma membranes

B)Protein synthesis

C)DNA

D)Protein structure

BACK TO GAME

ANSWER

Topic 4: Control of Microbial Growth

$400 Answer

Radiation primarily affects

A)Plasma membranes

B)Protein synthesis

C)DNA (correct answer)

D)Protein structure

BACK TO GAME

Topic 4: Control of Microbial Growth

$500 Question

Pasteurization is the same as complete sterilization.

A)True

B)False

BACK TO GAME

ANSWER

Topic 4: Control of Microbial Growth

$500 Answer

Pasteurization is the same as complete sterilization.

A)True

B)False (correct answer)

BACK TO GAME

Topic 5: Misc.

$100 Question

What are the building blocks of DNA and RNA called?

BACK TO GAME

ANSWER

Topic 5: Misc.

$100 Answer

What are the building blocks of DNA and RNA called?

Nucleotides (correct answer)

BACK TO GAME

Topic 5: Misc.

$200 Question

Which is the deoxyribose?

BACK TO GAME

ANSWERD

C

B

A

Topic 5: Misc.

$200 Answer

Correct Answer: A

BACK TO GAME

Topic 5: Misc.

$300 Question

Nitrogen bases can be ‘complimentary’. What does that mean?

BACK TO GAME

ANSWER

Topic 5: Misc.

$300 Answer

Nitrogen bases can be ‘complimentary’. What does that mean?

Correct answer: A only forms weak hydrogen bonds with T and C only forms weak hydrogen bonds with G.

BACK TO GAME

Topic 5: Misc.

$400 Question

A ‘gene’ is a section of DNA that codes for a functional product, such as…..

BACK TO GAME

ANSWER

Topic 5: Misc.

$400 Answer

A ‘gene’ is a section of DNA that codes for a functional product, such as…..

Correct Answer: A protein (primarily)

BACK TO GAME

Topic 5: Misc.

$500 Question

In the Keepers of the Biosphere video, relationships between organisms in the rain forest were examined. Fungi in the rain forest had a symbiotic relationship with what organism?

BACK TO GAME

ANSWER

Topic 5: Misc.

$500 Answer

In the Keepers of the Biosphere video, relationships between organisms in the rain forest were examined. Fungi in the rain forest had a symbiotic relationship with what organism?

Correct Answer: Ants

BACK TO GAME

FINAL ROUND Question

An experiment began with 5 cells and

ended with 160 cells. How many

generations did the cells go through?

a. 20

b. 6

c. 4

d. 5BACK TO GAME

ANSWER

FINAL ROUND Answer

An experiment began with 5 cells and ended with 160 cells. How many generations did the cells go through?

a. 20

b. 6

c. 4

d. 5 (correct answer)

BACK TO GAME