Master Investigating the Rate of Respiration fast ⚡ – clear explanations, OCR-aligned.
You’ll cover
• How respiration rate can be measured and investigated experimentally using respirometers.
• What a respirometer measures during respiration.
• Why carbon dioxide is absorbed in respirometer experiments using substances such as soda lime or potassium hydroxide.
• How movement of coloured fluid in capillary tubing is used to measure oxygen consumption.
• Calculation of oxygen consumption and respiration rate from displacement and time measurements.
• Practical uses of respirometers in investigations with different organisms and conditions.
What’s included
• Labelled diagrams of a simple respirometer and a U-tube manometer respirometer.
• Diagram showing the main components of a respirometer apparatus.
• Worked example demonstrating how oxygen consumption and respiration rate are calculated.
• Table outlining practical investigations using respirometers with different organisms and variables.
• Table showing experimental approaches for investigating aerobic respiration in yeast.
• Table showing experimental approaches for investigating anaerobic respiration in yeast.
Format
Web-based textbook topic. Mobile/desktop friendly. Access with no time limit, updates included.