Multiple Choice
Water flows into the source end of a sieve tube because
A) sucrose has diffused into the sieve tube, making it hypotonic.
B) sucrose has been actively transported into the sieve tube, making it hypertonic.
C) water pressure outside the sieve tube forces in water.
D) the companion cell of a sieve tube actively pumps in water.
Correct Answer:
Verified
Correct Answer:
Verified
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