02c Culture media and microbial population growth

What is the process of growing bacteria in controlled laboratory conditions called?

• Incubation

• Inoculation

• Culturing

• Fermentation

Which of the following is **NOT** necessary for bacterial culture?

• Nutrients

• Optimal temperature

• Antibiotics

• Aerobic/anaerobic conditions

Liquid media used for growing pure bacterial cultures is commonly known as:

• Agar

• Broth

• Petri dish

• Chocolate agar

In solid media, agar is used because it:

• Provides nutrients

• Solidifies into a jelly

• Increases bacterial growth

• Selects for specific bacteria

Which method is typically used to isolate individual colonies of bacteria?

• Spread plate method

• Streak plate method

• Pour plate method

• Serial dilution

Which statement best describes a bacterial colony?

• A mass of genetically identical cells originating from a single parent cell

• A mixture of different bacterial species

• A liquid culture with millions of bacterial cells

• A group of bacteria from different environments

What type of media prevents the growth of most microorganisms but supports a specific one?

• Differential media

• Enrichment media

• Selective media

• Nutrient media

MacConkey agar is used to select for which type of bacteria?

• Gram-positive

• Gram-negative

• Anaerobic

• Fungi

Which medium is designed to differentiate bacteria based on their ability to digest red blood cells?

• Nutrient agar

• Blood agar

• Mannitol salt agar

• MacConkey agar

Which of the following is **NOT** a stage of the bacterial growth curve?

• Lag phase

• Log phase

• Decline phase

• Elongation phase