Multiple Choice
Movement of phloem sap from a source to a sink
A) occurs through the apoplast of sieve-tube elements.
B) may translocate sugars from the breakdown of stored starch in a root up to developing shoots.
C) depends on tension, or negative pressure potential.
D) depends on pumping water into sieve tubes at the source.
E) results mainly from diffusion.
Correct Answer:
Verified
Correct Answer:
Verified
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