Igcse Model Questions Vol1 2023 Biology Question 4
Practice practical question 4 from the 2023 Igcse Model Questions Vol1 Biology examination. This question covers Respiration, Temperature effect, Gas collection, Enzyme activity .
A group of students are measuring the rate of respiration in germinating beans using a gas‑pressure syringe. Five freshly soaked beans are placed in a sealed syringe at three different temperatures. The volume of gas (CO₂) collected over each 30‑minute period is recorded as follows: | Temperature (°C) | Volume of CO₂ (mL) per 30 min | |------------------|--------------------------------| | 20 | 0.45 | | 30 | 0.78 | | 40 | 0.30 | Assume the syringe is calibrated and the pressure remains constant throughout the experiment. Answer the following:
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This is Igcse Model Questions Vol1 2023 Biology Question 4. It is one of the practical questions from the 2023 Igcse Model Questions Vol1 Biology examination.
The question covers Respiration, Temperature effect, Gas collection, Enzyme activity .
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