Which of the following combinations correctly matches the ion, its role in plants, and a typical mechanism of its uptake?
(A) Calcium - Cell wall component - Symport with protons
(B) Potassium - Stomatal regulation - Channel proteins
(C) Nitrate - Nucleic acid synthesis - Active transport through ATPases
(D) Magnesium - Chlorophyll constituent - Passive diffusion
A
B
C
D
Related Questions
Which of the following statement is true about the passive uptake of ions?
Passive uptake may be non-mediated or mediated
Passive uptake is always mediated
Passive uptake is always non-mediated
None of the above
What is the primary role of carrier proteins in ion uptake?
Store ions within the vacuole
Convert ions into usable forms
Facilitate the movement of ions across the cell membrane
Prevent the entry of unwanted ions
