Sometimes higher plants animal too perform anaerobic respiration

Yes, you're right! While aerobic respiration is the primary way that higher plants and animals generate energy, they can also perform anaerobic respiration under certain conditions. Here's why and how:

Reason for Anaerobic Respiration 

• Oxygen Deficiency: When oxygen is limited, cells can't perform aerobic respiration efficiently. This can happen in situations like:
  • Intense physical activity in animals (muscles don't get enough oxygen)   
  • Waterlogged soil for plants (roots can't access oxygen)
• Survival Mechanism: Anaerobic respiration is a less efficient way to produce energy, but it allows organisms to survive short periods of oxygen deprivation.  

How Anaerobic Respiration Works

• Plants:
  • In plants, anaerobic respiration is called fermentation.   
  • It breaks down glucose into ethanol and carbon dioxide.   
  • This process produces much less ATP (energy) than aerobic respiration.  
• Animals:
  • In animals, anaerobic respiration is called lactic acid fermentation.   
  • It breaks down glucose into lactic acid.
  • This also produces less ATP than aerobic respiration.