Microorganisms Flashcards

1
Q

What are saprobionts?

A

organisms that hydrolyse waste material and dead organic matter, through extracellular digestion

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2
Q

What is extracellular digestion also known as?

A

Saprobiotic nutrition

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3
Q

Describe the role of bacteria in ammonification

A

produce enzymes that hydrolyse proteins/urea/DNA/RNA in waste material, converting it into ammonium ions. (during extracellular digestion/soprabiotic nutrition)

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4
Q

What are the 4 types of microorganism involved in the nitrogen cycle?

A
  • nitrogen fixing bacteria
  • nitrifying bacteria
  • denitrifying bacteria
  • saprobionts
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5
Q

What is the plant and fungi complex called?

A

mycorrhizae

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6
Q

What bacteria converts N2 into NH4+?

A

nitrogen fixing

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7
Q

What is the specific name of the bacteria found in root nodules?

A

rhizobium

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8
Q

What do saprobionts break down?

A

nitrogen-containing compounds SUCH AS DNA/PROTEINS in waste/dead material

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9
Q

What is different about denitrifying bacteria?

A

they require anaerobic conditions to convert NO3 into N2

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10
Q

What bacteria are involved in ammonification?

A

saprobionts

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11
Q

What bacteria are involved in nitrification?

A

nitrifying

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