Question

Saved Review the many ways in which microbes process oxygen by completing each sentence. Microaerophiles aerobe With respect to oxygen requirements, an can use gaseous oxygen and possesses enzymes to process toxic oxygen products. facultative anaerobes aerobe cannot grow Expanding on this classification, an without oxygen. Anaerobes obligate Still other organisms, called .. prefer oxygen but can grow in its absence. are aerobes, but they can only tolerate very minute concentrations of oxygen in their environment. represent a group of organisms whose members lack the required enzymes needed for using oxygen in respiration and may not be able to tolerate any free oxygen in their environment Reset

Answer 1

1. Aerobes

Aerobes contain enzymes for using oxygen in respiration .They can be microaerophilic, obligate aerobes,

Example: Bacillus,pseudomonas aeruginosa.

2.obligate

Obligate meaning strict. Obligate aerobes will not grow in the absence of oxygen.They cannot ferment or respire anaerobically.

Example: Mycobacterium tuberculosis,almost all the algae are obligate aerobes.

3. Facultative anaerobes

They prefer oxygen but can grow even in the absence of oxygen .They can metabolise energy both aerobically and anaerobically.

Example: staphylococcus species, streptococcus species

4. Microaerophiles

Microaerophiles are aerobes which will grow even in minute amount of oxygen.They are poisoned by high concentration of oxygen.

Example: Campylobacter species

5. Anaerobes

Anaerobes does not contain enzymes for using oxygen in respiration . Anaerobes can be obligate, facultative,aerotolerant

Example: Clostridium perfringens.