• It's a process where cells produce energy.
• Rate of cell respiration can be measured by
  • Oxygen Uptake: Amount of O2 taken in. 🌬
  • Carbon Dioxide Production: Amount of CO2 given off. 💨
  • Glucose Consumption: Amount of glucose used. 🍬

🌍 Real-World Example: Imagine you're baking a cake 🎂. The ingredients you put in (oxygen, glucose) and the outcomes (carbon dioxide) can determine how well the cake rises!

• Used to measure aerobic respiration (using oxygen).
• Respirometer Components: 🔬
  • Sealed container: Place the organism/tissue here.
  • Base (like potassium hydroxide): Captures the CO₂.
  • Capillary tube with fluid: Shows air volume changes.

Respirometers are like little labs for tiny creatures!

🌍 Real-World Example: Think of a submarine 🌊🚤. Just as a submarine measures oxygen levels to ensure the safety of its crew, a respirometer measures oxygen to understand the rate of respiration!

• CO₂ produced increases air volume; oxygen consumed decreases it.
• Only the changes in oxygen matter here, since the base captures all CO₂.
• The fluid's movement in the capillary tube shows oxygen consumption.
• To get a rate (amount/time), divide the oxygen volume used by time.

🌍 Real-World Example: If you're tracking how fast you eat ice cream 🍦, and you eat 5 scoops in 5 minutes, your rate is 1 scoop per minute!