Bacterial nutrition and growth (Lec 2) (Set 1)

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30 Questions

Which type of bacteria grows best between 20-40 °C?

Mesophiles

What is the temperature range in which hyperthermophiles grow best?

Above 80 °C

Which type of bacteria requires oxygen for growth?

Obligate aerobes

Which type of bacteria can grow with or without oxygen?

Facultative anaerobes

Which type of bacteria grows best in alkaline habitats?

Alkaliphiles

Which type of bacteria grows best below 15 °C and cannot grow above 20 °C?

Psychrophiles

Which type of bacteria can grow in the presence or absence of oxygen?

Facultative anaerobes

Which type of bacteria grows best in acidic habitats?

Acidophiles

Which type of bacteria requires high salt concentration for growth?

Extreme halophiles

What is the temperature range in which thermophiles grow best?

45-80 °C

Which of the following is a macroelement required for bacterial growth?

Carbon

Which of the following is a microelement required for bacterial growth?

Copper

Which of the following is a component of complex media used for bacterial growth?

Proteins

Which of the following is a method for measuring bacterial growth?

Counting bacterial by microscopy

What is the term used to describe the time needed for a bacterial population to double in size?

Doubling time

Which of the following is true about viable but nonculturable bacteria?

They are in a state of very low metabolic activity and do not divide

Which of the following is NOT a factor that can affect bacterial growth?

Turbidity

Which of the following is true about facultative anaerobes?

They can grow with or without oxygen

Which of the following is the correct temperature range for mesophiles?

20-40 °C

Which of the following is true about hyperthermophiles?

They grow best above 80 °C

True or false: Bacteriolytic agents inhibit bacterial growth by lysing bacterial cells.

True

True or false: Mesophiles are bacteria that grow best below 15 °C and cannot grow above 20 °C.

False

True or false: Acidophiles are bacteria that grow best in alkaline habitats.

False

True or false: Hyperthermophiles can grow at temperatures above 80 °C.

True

True or false: Halophiles are bacteria that grow in habitats with high salt concentration.

True

True or false: Oxygen is required for the growth of obligate anaerobes.

False

True or false: Psychrophiles can grow above 20 °C.

False

True or false: Acidophiles grow best in alkaline habitats.

False

True or false: Hyperthermophiles can grow at temperatures below 80 °C.

False

True or false: Halophiles require high salt concentration for growth.

True

Test your knowledge on the nutritional requirements of bacteria in this quiz. Explore the macro and micro elements necessary for bacterial growth and how they contribute to the synthesis of cell material. Learn about the main nutritional elements that play a crucial role in the culture and development of bacteria.

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