Question

Anaerobic respiration in animals produces:

• A. $C{O}_2$ and $H_{2}O$
• B. Alcohol and $C{O}_2$
• C. Lactic acid and $H_{2}O$
• D. Glucose and $O_2$

Answer 1

The correct option is C Lactic acid and $H_{2}O$

In the process of anaerobic respiration, materials are incompletely oxidized into $C{O}_2$ and simple organic substances like alcohol ($C_2{H}_{2}OH$) or lactic acid . In yeast cells, anaerobic respiration (fermentation) produces carbon dioxide, ethanol (alcohol), ATP and water. In human cells, carbon dioxide is not produced in anaerobic respiration. Instead, lactate, ATP and water are produced.

So, the correct answer is 'Lactic acid and H${}_2$O'.