Igcse Model Questions Vol1 2024 Biology Question 4
Practice practical question 4 from the 2024 Igcse Model Questions Vol1 Biology examination. This question covers Respiration .
Students used a closed respirometer to investigate the effect of temperature on the rate of respiration in germinating peas. The respirometer consisted of a sealed bottle containing 5.0 g of moist peas and a graduated capillary tube filled with water. As CO₂ was produced, water was displaced in the capillary. The volume of water displaced was recorded over a period of 10 minutes at two constant temperatures. Data recorded: - At 25 °C: water displaced after 10 min = 1.2 mL. - At 35 °C: water displaced after 10 min = 2.0 mL. Assume temperature and pressure remain constant and that 1 mL of water displaced corresponds to 1 mL of CO₂ at STP. Molar volume of a gas at STP = 22.4 L mol⁻¹.
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This is Igcse Model Questions Vol1 2024 Biology Question 4. It is one of the practical questions from the 2024 Igcse Model Questions Vol1 Biology examination.
The question covers Respiration .
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