Main things on respriation

• What is the purpose of respiration in organisms?

  To release energy for living processes
• What are the two types of respiration?

  Aerobic and anaerobic respiration
• What does aerobic respiration use to produce energy?

  Glucose and oxygen
• What does anaerobic respiration use to produce energy?

  Only glucose
• What is anaerobic respiration in yeast used for?

  • Producing alcoholic drinks
  • Occurs when oxygen runs out
  • Produces ethanol and carbon dioxide
• What happens to yeast cells during beer or wine production when oxygen runs out?

  They switch to anaerobic respiration
• What are the products of anaerobic respiration in yeast?

  Ethanol and carbon dioxide
• How does yeast contribute to bread making?

  • Respires using sugar in dough
  • Produces carbon dioxide bubbles
  • Makes the bread rise
• What happens to the alcohol produced in bread during baking?

  It evaporates
• Which plants can respire anaerobically?

  • Certain plants in marshes
  • Plants in low oxygen concentrations
• What is a key characteristic of anaerobic respiration in plants?

  Occurs in low oxygen concentrations