A-LevelBiologyTransport in plants9700/12 · Feb/Mar 2016 · Q251 Mark
Which changes to the water potential and the volume of liquid in the phloem occur when sucrose is moved from the phloem sieve tube to an actively dividing root tip? [Figure 25.1]
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Awater potential in phloem sieve tube becomes: less negative, volume of liquid in phloem sieve tubes: decreases
Bwater potential in phloem sieve tube becomes: less negative, volume of liquid in phloem sieve tubes: increases
Cwater potential in phloem sieve tube becomes: more negative, volume of liquid in phloem sieve tubes: decreases
Dwater potential in phloem sieve tube becomes: more negative, volume of liquid in phloem sieve tubes: increases
✓ Correct answer
A: water potential in phloem sieve tube becomes: less negative, volume of liquid in phloem sieve tubes: decreases
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