8 Questions
What is the primary function of translocation in plants?
Transporting assimilates in the phloem
In which cells does active loading of sucrose occur?
Companion cells
What is the role of proton pumps in the process of translocation?
Creating a diffusion gradient for hydrogen ions
How does sucrose enter the sieve tube elements from companion cells?
Through plasmodesmata
What effect does sucrose entering the sieve tube elements have on water potential?
Reduces it
Which cells use ATP to transport hydrogen ions during translocation?
Companion cells
What process allows H+ ions to bring sucrose molecules into companion cells?
Facilitated diffusion involving cotransporter proteins
Why does water enter the sieve tube via osmosis during translocation?
Due to reduced water potential inside the tube
Test your knowledge on the process of translocation in plants, involving the movement of assimilates like sucrose dissolved in water through the xylem and phloem. Learn about companion cells, source cells, and sink cells in this energy-requiring process.
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