Which statement concerning the transport of sucrose is correct?
- AATP synthesised by mitochondria of companion cells provides the energy to move sucrose from phloem sieve tube elements in leaves to sinks.
- BSucrose moves through plasmodesmata by passive diffusion from mesophyll cells through companion cells to phloem sieve tube elements.
- CThe water potential in phloem sieve tube elements becomes more negative following the entry of sucrose.
- DWater enters companion cells and hydrostatic pressure builds up to push sucrose into phloem sieve tube elements by mass flow.