The diagram illustrates the apparatus used for measuring the rate of respiration in germinating seeds. As respiration occurs in the seeds, the bubble of coloured water travels along the glass tube. The temperature is raised from $20^{\circ}\text{C}$ to $40^{\circ}\text{C}$. What change occurs in the bubble’s movement as the temperature rises?
- AThe bubble moves more quickly towards the seeds at $40^{\circ}\text{C}$ than at $20^{\circ}\text{C}$.
- BThe bubble moves more quickly away from the seeds at $40^{\circ}\text{C}$ than at $20^{\circ}\text{C}$.
- CThe bubble moves more quickly towards the seeds at $20^{\circ}\text{C}$ than at $40^{\circ}\text{C}$.
- DThe bubble moves more quickly away from the seeds at $20^{\circ}\text{C}$ than at $40^{\circ}\text{C}$.