Multiple Choice
Substances are absorbed and retained against a concentration gradient, through the expenditure of energy, by ________.
A) active transport
B) passive transport
C) imbibition
D) osmosis
E) None of these answers are correct.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q1: Approximately how much water typically leaves the
Q3: At present the most widely accepted theory
Q4: Osmotic potential is the amount of pressure
Q5: Which of the following plays a role
Q6: An area within a plant where food
Q7: The rise of water in plants is
Q8: The cohesion of water molecules and their
Q9: Tension in the leaf xylem is due
Q10: A hydathode is normally located at the
Q11: Many studies leading to our present knowledge