Question
What is not an example of active transport?
A absorption of water by root hairs
B reabsorption of glucose by kidney tubules
C uptake of glucose by villi
D uptake of ions by root hairs
Answer/Explanation
Ans
A
Question
A student made the following statements about the movement of ions by active transport.
1 It is the net movement of particles from a low concentration to a high concentration.
2 It is the net movement of particles from a high concentration to a low concentration.
3 It requires the use of energy from respiration.
4 It can only take place in living cells.
Which statements are correct?
A 1, 3 and 4 B 1 and 4 only C 2 and 4 only D 2 only
Answer/Explanation
Ans: A
Question
Which process is involved in the uptake of glucose by the epithelial cells of kidney tubules?
A active transport
B osmosis
C translocation
D transpiration
Answer/Explanation
Ans: A