Water flows into the source end of a sieve tube because ________.
A) sucrose has been actively transported into the sieve tube, making it hypertonic
B) water pressure outside the sieve tube forces in water
C) the companion cell of a sieve tube actively pumps in water
D) sucrose has been transported out of the sieve tube by active transport
Correct Answer:
Verified
Q46: Which of the following experimental procedures would
Q48: Several tomato plants are growing in a
Q52: Which of the following is a net
Q54: Which one of the following ions plays
Q55: Ignoring all other factors, what kind of
Q56: Photosynthesis ceases when leaves wilt, mainly because
Q59: In xerophytes, _ are referred to as
Q60: The high surface-to-volume ratio in leaves aids
Q62: Compared with a cell with few aquaporin
Q62: In the pressure-flow mechanism, loading of sucrose
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents