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What are the phases in the bacterial growth curve?

Lag, Log, Stationary, Decline

Match correct temperatures with their Microorganisms

Psycrophiles = 12 Psycrotrophs = 03 Mesophiles = 15 hyperthermophiles = 116

Match microorganisms with their pH?

Acidophiles = 1-5 neutrophiles = 5-8 alkaliphiles = 8

Give two chemical requirements for bacterial growth.

Carbon, Oxygen Signup and view all the answers

Give 2 physical requirements for bacterial growth

PH, Osmotic pressure Signup and view all the answers

Are nutrient agar and nutrient broth General Isolation Agar?

True Signup and view all the answers

Is Mac Conkey a Enrichment agar?

False Signup and view all the answers

Mannitol salt agar and colistin Nalidixic acid are Selective agar.

True Signup and view all the answers

Salmonella can be grown on the enrichment agar and lactose fermenters can be grown using Mac Conkey Agar.

True Signup and view all the answers

What is a facultative Anaerobe?

It is a microorganism that can survive in an oxygenated environment or a non-oxygenated environment. Signup and view all the answers

Name the 3 Inoculation Tools

Loops, Swabs, Pipettes Signup and view all the answers

Loops can hold how much liquid?

0.01ml-0.001ml Signup and view all the answers

Match the streaking techniques with their corresponding functions.

Quantitative Streaking = Inner catheter culture ( urine) Dilution = Decreases concentration of bacteria Continuous streaking = Allows for more than 1 culture Radiant Streaking = Obtains pure cultures Signup and view all the answers

What are four Presumptive confirmatory Tests?

Gram stain, Coagulase, Sim, TSIA, Decarboxylase Test Signup and view all the answers

A gram-positive microorganism has a thick peptidoglycan cell layer and a thin outer lipid membrane.

True Signup and view all the answers

What microorganism does the decarboxylase test differentiate between?

Enterobacteriaceae species Signup and view all the answers

Match these microbial control methods

<h1>Decontamination = Removes the majority of microorganisms from a surface Disinfection = The removal of pathogenic microorganisms from a surface Steralization = The removal of all microorganisms from a surface</h1> Signup and view all the answers

Two sterilization methods are autoclaving and Filtration

True Signup and view all the answers

Filtration is used for solutions that can't be exposed to . Such as_.

heat, antibiotic solutions Signup and view all the answers

Autoclaving is used for bacteria that produce endospores.

True Signup and view all the answers

Assessment of sterilization.

<h1>Current gold standard = Ensures that autoclave sterilizes properly, ensuring spore forming bacteria are killed Spore Test = ensures that the method of sterilization is effective placing controls such as spore forming bacteria to then come to a conclusion</h1> = Signup and view all the answers

What are four disinfectants?

Ethyl Alcohol Signup and view all the answers

The difference between Surface Active Compounds and Quaternary compounds is?

surface active compounds are used on skin whereas Quaternary compounds are grouped to floors and bench tops. Signup and view all the answers

Surface activity, interfering Substances and pH are all factors that that can affect the ability of Disinfectants.

True Signup and view all the answers

Bacterial Growth Curve Phases Quiz

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Questions and Answers

What are the phases in the bacterial growth curve?

Match correct temperatures with their Microorganisms

Match microorganisms with their pH?

Acidophiles = 1-5 neutrophiles = 5-8 alkaliphiles = 8

Give two chemical requirements for bacterial growth.

Give 2 physical requirements for bacterial growth

Are nutrient agar and nutrient broth General Isolation Agar?

Is Mac Conkey a Enrichment agar?

Mannitol salt agar and colistin Nalidixic acid are Selective agar.

Salmonella can be grown on the enrichment agar and lactose fermenters can be grown using Mac Conkey Agar.

What is a facultative Anaerobe?

Name the 3 Inoculation Tools

Loops can hold how much liquid?

Match the streaking techniques with their corresponding functions.

What are four Presumptive confirmatory Tests?

A gram-positive microorganism has a thick peptidoglycan cell layer and a thin outer lipid membrane.

What microorganism does the decarboxylase test differentiate between?

Match these microbial control methods

Two sterilization methods are autoclaving and Filtration

Filtration is used for solutions that can't be exposed to . Such as_.

Autoclaving is used for bacteria that produce endospores.

Assessment of sterilization.

What are four disinfectants?

The difference between Surface Active Compounds and Quaternary compounds is?

Surface activity, interfering Substances and pH are all factors that that can affect the ability of Disinfectants.

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