Question
Which pair of features is correct for both diffusion and osmosis?
▶️Answer/Explanation
The correct answer is D, that both diffusion and osmosis occur due to a concentration gradient and do not require energy input from the cell.
Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, down a concentration gradient. Similarly, osmosis is the movement of water molecules from an area of high concentration to an area of low concentration, down a concentration gradient.
Question
How do mineral ions in the soil move into the root?
A. Osmosis
B. Mass flow of water
C. Translocation
D. Through phloem
Answer/Explanation
Markscheme
B
Question
Which process and cause are responsible for water uptake by the roots?
Answer/Explanation
Markscheme
B