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
In the initial phase of mineral absorption, ions are taken up into the …… space of cells
cytoplasm
vacuole
apparent free space/outer space
nucleus
The term ‘outer space’ represents …A…, while ‘inner space’ represents …B… with reference to absorption of minerals
Identify A and B to complete the given statement
A: Soil solution; B: Inside root cells
A: Inside root cells; B: Soil solution
A: Xylem; B: Phloem
A: Cell wall; B: Cytoplasm
In the initial phase of minerals absorption ions are taken up
Slowly
Rapidly
Fluently
Simultaneously
Which of the following statements are correct about mineral absorption in plants?
In the initial phase, ions are taken up into the outer space of cells, the apoplast. It is a passive process
In the final phase, ions are taken slowly into the inner space, the symplast of cells and it is an active process
Passive movement of the ions into the apoplast occurs through ion channels, transmembrane proteins, which acts as selective pores
All of the above
For the uptake of ions in the second phase of absorption of minerals, the pathway followed is called
Passive uptake
Active uptake
Neutral
None of these
Absorption of minerals takes place in the form of
Molecules
Compounds
Ions
Mixtures
For the uptake of ions in the first phase of absorption of minerals, the pathway followed is called
Active uptake
Passive uptake
Neutral
None of these
Minerals are absorbed by plants in
Colloidal form
ionic form
Precipitated form
None of these
In the final phase of mineral absorption, ions are taken up into the …… space of cells
outer
inner
middle
peripheral
