Chapter 27.3 Flashcards by Alex Hargrove | Brainscape

Q

Prokaryotic metabolism

Obligate Aerobes

A

Obligate aerobes require O2 for cellular respiration

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Q

Prokaryotic metabolism

Obligate Anaerobes

A

Obligate anaerobes are poisoned by O2 and use fermentation or anaerobic respiration

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Q

Prokaryotic metabolism

Faculative Anaerobes

A

Facultative anaerobes can survive with or without O2

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Q

Nitrogen Fixation

A

In nitrogen fixation, some prokaryotes convert atmospheric nitrogen (N2) to ammonia (NH3)

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Q

Heterocysts

(or heterocytes)

A

Nitrogen-Fixing cells

In the cyanobacterium Anabaena, photosynthetic cells and heterocysts exchange metabolic products

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Q

Biofilms

A

In some prokaryotic species, metabolic cooperation occurs in surface-coating colonies called biofilms

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