page 07 9. A respirometer was used to measure the rate of respiration in maggots as shown in the diagram. The soda lime was present to absorb the carbon dioxide produced by the maggots during respiration. The manometer was used to measure the decrease in gas volume over a fixed time period. live maggots cotton wool soda lime manometer containing coloured fluid It was found that the decrease in gas volume, and hence the oxygen consumed, in the respirometer was 0.24 cm3 per gram of maggots. The experiment was repeated with identical conditions except that the soda lime was replaced with an equal volume of plastic beads, allowing the measurement of the net change in both carbon dioxide and oxygen. The net change in volume in this experiment was found to be a decrease of 0.07 cm3 per gram of maggots. The respiratory quotient is calculated using the equation: volume of carbon dioxide produced Respiratory quotient volume of oxygen consumed  Calculate the respiratory quotient for the maggots in this experiment. A 0.29 B 0.71 C 1.41 D 3.43 10. The diagram represents a cell in which stage of mitosis? A Metaphase B Prophase C Telophase D Anaphase [Turn over