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Questions and Answers
What is the primary function of translocation in plants?
What is the primary function of translocation in plants?
- Absorbing water in the xylem
- Producing sucrose in the companion cells
- Releasing sucrose in the sink cells
- Transporting assimilates in the phloem (correct)
In which cells does active loading of sucrose occur?
In which cells does active loading of sucrose occur?
- Companion cells (correct)
- Xylem cells
- Sink cells
- Source cells
What is the role of proton pumps in the process of translocation?
What is the role of proton pumps in the process of translocation?
- Facilitating osmosis in the sieve tube
- Creating a diffusion gradient for hydrogen ions (correct)
- Producing sucrose molecules
- Transporting water molecules
How does sucrose enter the sieve tube elements from companion cells?
How does sucrose enter the sieve tube elements from companion cells?
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What effect does sucrose entering the sieve tube elements have on water potential?
What effect does sucrose entering the sieve tube elements have on water potential?
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Which cells use ATP to transport hydrogen ions during translocation?
Which cells use ATP to transport hydrogen ions during translocation?
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What process allows H+ ions to bring sucrose molecules into companion cells?
What process allows H+ ions to bring sucrose molecules into companion cells?
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Why does water enter the sieve tube via osmosis during translocation?
Why does water enter the sieve tube via osmosis during translocation?
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