Anaerobic Respiration


 
 
Concept Explanation
 

Anaerobic Respiration

Anaerobic Respiration: The organisms like yeast and some bacteria which carry out aerobic respiration are known as anaerobes. The word anaerobic means in the absence of oxygen. In this process energy is released from food by breaking it down chemically but the reactions do not use oxygen though they often produce carbon dioxide. A common example of anaerobic respiration is the action of yeast on sugar solution. The sugar is not completely oxidized to carbon dioxide and water but is converted to carbon dioxide and alcohol. This process is called fermentation and is shown by the following word equation

                                          Glucose   large rightarrow  Ethyl alcohol + Carbon dioxide + Energy

The processes of brewing (to make fermented alcoholic beverages) Bread-making rely on anaerobic respiration by yeast. Anaerobic respiration takes place in small steps and needs several different enzymes. The energy produced by anaerobic respiration is much less that produced by aerobic respiration. Besides yeast, certain types of bacteria and some body tissues also respire anaerobically.

Sample Questions
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Question : 1

The respiration carried in the absence of oxygen is called 

Right Option : B
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Question : 2

Anaerobic respiration is also termed as _______________

Right Option : A
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Question : 3

In anaerobic respiration, glucose is broken down into

Right Option : C
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