ICSE Class 9: Respiration Videos | Respiration in yeast

• Explain calorie  
  
• Constraints on suppply of oxygen? Condition of hospitals related to oxygen? Measures taken to solve the crisis?
• Respiration is what type reaction
  
• Is carbon dioxide essential for our daily life? It is harmful for us then also,  is it essential for human being sometimes? 
• Will the world survive without nitrogen? 
• In cellular respiration when the glucose enters the cytoplasm of the cell does it become pyruvate or pyruvic acid?
• What is known as the energy currency of the cell ?
• Are there any organisms that can live without oxygen?
• If food will not be oxidized then what will happen?  
• The exchange of gases between alveolar air and alveolar capillaries takes place by active transport 

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