section 4 respiration flashcards

• what is respiration?

  • chemical reaction that released energy from glucose
• what is the purpose of respiration?

  • respiration used to make ATP - which stores energy needed for many cell processes
  • cell requires energy - ATP molecules break down and energy released
• what is aerobic respiration?

  • plenty of oxygen available - most efficient way to transfer energy from glucose
  • produces lots of ATP - 32 molecules per molecule of glucose
• what is anaerobic respiration?

  • anaerobic respiration is lack of oxygen and very poor at converting glucose to energy
  • releases much less per glucose molecules than aerobic - 2 molecules of ATP produced
  • glucose partially broken down - lactic acid produces
  • lactic acid builds up in muscles - gets painful and leads to cramps
• what is the word equation for aerobic respiration?

  • glucose + oxygen - carbon dioxide + water (+ energy)
• what is the chemical equation for aerobic respiration?

  • C6H12O6 + 6O2 - 6CO2 + 6H20
• what is the word equation for anaerobic respiration?

  • glucose - lactic acid (+ energy)
• what is the word equation for anaerobic respiration in plants?

  • glucose - ethanol +carbon dioxide (+ energy)