The formation of foam is evidence that

A) photosynthesis

B) protein synthesis

C) respiration

D) cell division

Is taking place because

A) oxygen

B) yeast

C) carbon dioxide

D) glucose

Is a product of

A) protein synthesis

B) respiration

C) cell division

D) photosynthesis

C) respiration

C) carbon dioxide

B) respiration

Explanation:

In the process of respiration at cellular level, glucose is com busted in the presence of oxygen to produce carbon dioxide and water.  

The chemical equation is as follows -  

C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy  

The carbon dioxide released at the end of respiration is responsible for producing the foam especially during the cell respiration in anaerobic condition.  

Hence, correct options are

C) respiration

C) carbon dioxide

B) respiration

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