A-LevelBiologyTransport in plants9700/12 · Feb/Mar 2021 · Q281 Mark
Which statement about the role of co-transporter proteins in the movement of sucrose is correct?
ACo-transporter proteins pump hydrogen ions into phloem sieve tubes along with sucrose.
BHydrogen ions diffuse through co-transporter proteins with sucrose into companion cells.
CPlasmodesmata move sucrose into phloem sieve tubes via co-transporter proteins.
DSucrose is moved through co-transporter proteins by active transport.
✓ Correct answer
B: Hydrogen ions diffuse through co-transporter proteins with sucrose into companion cells.
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Transport in plants and see which topics are most likely to come up next.
Sign up free →