Clostridium, lactobacillus, and propionibacterium all a. use sulfur compounds as terminal electron acceptors. b. oxidize inorganic compounds. c. oxidize organic compounds. d. use organic compounds as terminal electron acceptors. e. oxidize organic compounds and use organic compounds as terminal electron acceptors.

Oxidize organic compounds AND use organic compounds as terminal electron acceptors. (Ans. E)

Explanation:

Anaerobes are the organism that does not require oxygen for their growth. The anaerobes are subdivided into three main classes:

1) Obligate anaerobes: These organisms use anaerobic metabolism to grow and killed in the presence of oxygen. Obligate anaerobe examples are Clostridium and Propionibacterium.

2) Facultative anaerobes: These organisms prefer to grow using aerobic metabolism processes and switch to anaerobic metabolism in the absence of oxygen. An example of facultative anaerobic bacteria is Lactobacillus.

3) Aerotolerent anaerobes: These organisms use anaerobic metabolism to grow and can survive in both conditions (oxygen and oxygen-free environment).

Anaerobic bacteria, oxidize organic compounds rather than oxygen & use organic compounds as terminal electron acceptors. Anaerobic bacteria release hydrogen sulfide gas as they decompose algae in the water. This process is also known as Anaerobic Respiration, in which formation of ATP without oxygen.

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