Question

certain organisms repire only anaerobiclly throughout their lives. name any two such organisms​

Answer 1

Answer:

YEAST and CLOSTRIDIA etc.........

Answer 2

None. And anaerobic respiration does not occur in any human cells.

A common mistake is to refer to fermentation (or glycolysis) as anaerobic respiration because it is an anaerobic alternative to aerobic respiration. Fermentation is not anaerobic respiration, and anaerobic respiration is not fermentation: they are two very different processes.

Respiration - both aerobic and anaerobic - involves a "respiratory chain" - what we usually refer to as an electron transport chain or electron transport system: it uses energy released by the flow of electrons from one carrier to another in a membrane in order to pump hydrogen ions unidirectionally across the membrane to form an electrochemical proton gradient. In fact, the protein complexes in the electron transport system are called “respiratory complexes”. The protons then flow back across the membrane through ATP synthase, which allows it to form ATP from ADP + Pi.

The key difference between aerobic respiration and anaerobic respiration is that in aerobic respiration the electron transport system's terminal electron acceptor is oxygen, whereas in anaerobic respiration the terminal electron acceptor is something other than oxygen, such as nitrate, nitrite, fumarate, DMSO, etc.

On the other hand, fermentation does not use a respiratory chain, does not generate an electrochemical proton gradient, and does not use ATP synthase to make ATP, so it is not a form of respiration. Fermentation and anaerobic respiration are two entirely different processes.

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