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

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

Psychrophiles

Thermophiles

Mesophiles (correct)

Hyperthermophiles

What is the temperature range in which hyperthermophiles grow best?

Above 80 °C (correct)

45-80 °C

20-40 °C

Below 15 °C

Which type of bacteria requires oxygen for growth?

Aerotolerant anaerobes

Obligate anaerobes

Facultative anaerobes

Obligate aerobes (correct)

Which type of bacteria can grow with or without oxygen?

Facultative anaerobes Signup and view all the answers

Which type of bacteria grows best in alkaline habitats?

Alkaliphiles Signup and view all the answers

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

Psychrophiles Signup and view all the answers

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

Facultative anaerobes Signup and view all the answers

Which type of bacteria grows best in acidic habitats?

Acidophiles Signup and view all the answers

Which type of bacteria requires high salt concentration for growth?

Extreme halophiles Signup and view all the answers

What is the temperature range in which thermophiles grow best?

45-80 °C Signup and view all the answers

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

Carbon Signup and view all the answers

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

Copper Signup and view all the answers

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

Proteins Signup and view all the answers

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

Counting bacterial by microscopy Signup and view all the answers

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

Doubling time Signup and view all the answers

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 Signup and view all the answers

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

Turbidity Signup and view all the answers

Which of the following is true about facultative anaerobes?

They can grow with or without oxygen Signup and view all the answers

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

20-40 °C Signup and view all the answers

Which of the following is true about hyperthermophiles?

They grow best above 80 °C Signup and view all the answers