Respiration

• What is the primary source of energy for the body?

  Food
• What is respiration in the context of energy?


  It is the process of transforming energy from the breakdown of glucose.
• Is respiration the same as breathing in and out?


  No, respiration is not breathing in and out.
• Where does respiration occur in the body?


  In every cell of the body continuously.
• Do plants also undergo respiration?


  Yes, respiration occurs in plants too.
• What is the main purpose of respiration for living organisms?


  To transfer energy from food to their cells.
• What type of reaction is respiration classified as?


  Exothermic
• How does respiration affect the environment?


  It transfers energy to the environment.
• What are three examples of how organisms use energy transferred by respiration?


  • To build larger molecules from smaller ones (e.g., proteins from amino acids)
  • To allow muscles to contract for movement
  • To maintain body temperature in mammals and birds
• Why is respiration considered important?


  It releases energy from glucose.
• What is cyanide's effect on respiration?


  It stops respiration by inhibiting enzymes involved in the process.
• Which organs are affected first by cyanide poisoning and why?


  The brain, heart, and liver are affected first due to their high energy demands.