Multiple Choice
Which of the following does not require expenditure of energy?
A) accumulation of ions inside a cell
B) transport against a concentration gradient
C) flow of sucrose and other carbohydrates once inside the sieve tubes
D) the loading and unloading of carbohydrates from the sieve tubes
E) opening or closing stomata
Correct Answer:
Verified
Correct Answer:
Verified
Q20: The pressure-flow hypothesis describes<br>A)how hormones move through
Q21: Which of the following statements does not
Q22: Cavitation can occur when what happens?<br>A)Root pressure
Q23: Which of the following hormones increases when
Q24: Which of the following statements about transport
Q26: Even in the absence of transpiration,some water
Q27: Which of these structures is not likely
Q28: Plants living in standing water often face
Q29: Stomatal opening requires each of the following
Q30: Most carbohydrates manufactured in leaves and other