Factors affecting bacterial growth

Psychrophiles are those bacteria that able to grow under........

• 0-20 C

• 25 - 40 C

• 50 - 60 C

• 70 - 110 C

Tags

NGSS.MS-LS1-5

The chemical growth requirements essential for bacterial growth are ...?

• Water,carbon,Nitrogen & sulphur

• Water

• Water,carbon,oxygen,phosphorus,Nitrogen,sulphur and other trace elements

• Environmental waste

All human pathogenic Bacteria are able to get their food source from organic compounds. They are called__________.

• Autotrophs

• Heterotrophs

• Chemotrophs

• Saprophytes

Bacteria that obtain their carbon source from carbon ioxide are called?

• Chemotrophs

• Autotrophs

• Heterotrophs

• Saprophytes

When we refer to 'growth' with bacteria, we are talking about the population and not the size of the bacteria.

• False

• True

Aseptic technique refers to carrying out a procedure under controlled conditions in a manner that will minimise the chance of contamination.

• True

• False

Microorganisms that can be found thriving in icy-cold climates would be considered...

• Barophiles

• Thermophiles

• Mesophiles

• Psychrophiles

• Bibliophile

Tags

NGSS.HS-LS4-4

Which term best describes a bacteria that can't exist in the presence of oxygen?

• Obligate aerobe

• Facultative aerobe

• Obligate anaerobe

• Facultative anaerobe

• Microaerophlile

Tags

NGSS.HS-LS2-3

The bacterium which obtain its energy from chemicals is known as a ...

• Phototroph

• Chemotroph

• Autotroph

• Heterotroph

The bacteria which grows best above 45°C are called...

• Psychrophilic

• Mesosphilic

• Thermophilic

• Any of these

Tags

NGSS.MS-LS1-5