Waec Model Questions Vol1 2021 Biology Question 4

Practice practical question 4 from the 2021 Waec Model Questions Vol1 Biology examination. This question covers Respiration .

Waec Model Questions Vol1 2021 Biology Practical
Topic: Respiration
Question 4 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • BIOLOGY • practical

Students investigated the effect of temperature on the rate of respiration in germinating mung bean seeds using a closed respirometer. The seeds were placed in the respirometer and the volume of gas produced was measured over a period of 5 minutes at three different temperatures. The data obtained are shown in the table. | Temperature (°C) | Volume of gas collected in 5 min (mL) | |------------------|----------------------------------------| | 20 | 12.0 | | 30 | 18.0 | | 40 | 27.0 | Assume the gas collected is CO₂ produced by respiration.

Question Parts

( a )
Calculate the rate of respiration (in mL CO₂ min⁻¹) at each temperature.

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This is Waec Model Questions Vol1 2021 Biology Question 4. It is one of the practical questions from the 2021 Waec Model Questions Vol1 Biology examination.

The question covers Respiration .

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