Ascent of mineral is mainly due to xylem. Analysis of xylem sap shows the presence of mineral salts in it.
BIOXI12: MINERAL NUTRITION
336735
In the final phase of mineral absorption, ions are taken up
1 Slowly
2 Rate of absorption depends upon the mineral ion
3 Very fast
4 None of the above
Explanation:
In the first phase, an initial rapid uptake of ions into the 'free space' or 'outer space' of cells - the apoplast, is passive. In the second (final) phase of uptake, the ions are taken in slowly into the 'inner space' - the symplast of the cells.
BIOXI12: MINERAL NUTRITION
336736
Which one of the following statement is incorrect?
1 In the first phase, an initial rapid uptake of ions into the 'free space' or 'outer space' of cells - the apoplast, is passive.
2 In the second phase of uptake, the ions are slowly taken into inner space, the symplast of the cells.
3 The passive movement of ions into the apoplast usually occurs through ionchannels, the trans-membrane proteins that function as selective pores
4 The inward movement of ion efflux and outward movement of ion is called influx.
Explanation:
The inward movement of ion is influx and outward movement of ion is called as efflux.
BIOXI12: MINERAL NUTRITION
336737
Active transport of ions by the cell requires
1 Alkaline \(\mathrm{pH}\)
2 High concentration
3 High temperature
4 ATP
Explanation:
Active uptake of ions into the symplast requires the expenditure of metabolic energy i.e. ATP.
Ascent of mineral is mainly due to xylem. Analysis of xylem sap shows the presence of mineral salts in it.
BIOXI12: MINERAL NUTRITION
336735
In the final phase of mineral absorption, ions are taken up
1 Slowly
2 Rate of absorption depends upon the mineral ion
3 Very fast
4 None of the above
Explanation:
In the first phase, an initial rapid uptake of ions into the 'free space' or 'outer space' of cells - the apoplast, is passive. In the second (final) phase of uptake, the ions are taken in slowly into the 'inner space' - the symplast of the cells.
BIOXI12: MINERAL NUTRITION
336736
Which one of the following statement is incorrect?
1 In the first phase, an initial rapid uptake of ions into the 'free space' or 'outer space' of cells - the apoplast, is passive.
2 In the second phase of uptake, the ions are slowly taken into inner space, the symplast of the cells.
3 The passive movement of ions into the apoplast usually occurs through ionchannels, the trans-membrane proteins that function as selective pores
4 The inward movement of ion efflux and outward movement of ion is called influx.
Explanation:
The inward movement of ion is influx and outward movement of ion is called as efflux.
BIOXI12: MINERAL NUTRITION
336737
Active transport of ions by the cell requires
1 Alkaline \(\mathrm{pH}\)
2 High concentration
3 High temperature
4 ATP
Explanation:
Active uptake of ions into the symplast requires the expenditure of metabolic energy i.e. ATP.
Ascent of mineral is mainly due to xylem. Analysis of xylem sap shows the presence of mineral salts in it.
BIOXI12: MINERAL NUTRITION
336735
In the final phase of mineral absorption, ions are taken up
1 Slowly
2 Rate of absorption depends upon the mineral ion
3 Very fast
4 None of the above
Explanation:
In the first phase, an initial rapid uptake of ions into the 'free space' or 'outer space' of cells - the apoplast, is passive. In the second (final) phase of uptake, the ions are taken in slowly into the 'inner space' - the symplast of the cells.
BIOXI12: MINERAL NUTRITION
336736
Which one of the following statement is incorrect?
1 In the first phase, an initial rapid uptake of ions into the 'free space' or 'outer space' of cells - the apoplast, is passive.
2 In the second phase of uptake, the ions are slowly taken into inner space, the symplast of the cells.
3 The passive movement of ions into the apoplast usually occurs through ionchannels, the trans-membrane proteins that function as selective pores
4 The inward movement of ion efflux and outward movement of ion is called influx.
Explanation:
The inward movement of ion is influx and outward movement of ion is called as efflux.
BIOXI12: MINERAL NUTRITION
336737
Active transport of ions by the cell requires
1 Alkaline \(\mathrm{pH}\)
2 High concentration
3 High temperature
4 ATP
Explanation:
Active uptake of ions into the symplast requires the expenditure of metabolic energy i.e. ATP.
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BIOXI12: MINERAL NUTRITION
336734
Ascent of mineral is mainly due to
1 Pith
2 Phloem
3 Xylem
4 Cortex
Explanation:
Ascent of mineral is mainly due to xylem. Analysis of xylem sap shows the presence of mineral salts in it.
BIOXI12: MINERAL NUTRITION
336735
In the final phase of mineral absorption, ions are taken up
1 Slowly
2 Rate of absorption depends upon the mineral ion
3 Very fast
4 None of the above
Explanation:
In the first phase, an initial rapid uptake of ions into the 'free space' or 'outer space' of cells - the apoplast, is passive. In the second (final) phase of uptake, the ions are taken in slowly into the 'inner space' - the symplast of the cells.
BIOXI12: MINERAL NUTRITION
336736
Which one of the following statement is incorrect?
1 In the first phase, an initial rapid uptake of ions into the 'free space' or 'outer space' of cells - the apoplast, is passive.
2 In the second phase of uptake, the ions are slowly taken into inner space, the symplast of the cells.
3 The passive movement of ions into the apoplast usually occurs through ionchannels, the trans-membrane proteins that function as selective pores
4 The inward movement of ion efflux and outward movement of ion is called influx.
Explanation:
The inward movement of ion is influx and outward movement of ion is called as efflux.
BIOXI12: MINERAL NUTRITION
336737
Active transport of ions by the cell requires
1 Alkaline \(\mathrm{pH}\)
2 High concentration
3 High temperature
4 ATP
Explanation:
Active uptake of ions into the symplast requires the expenditure of metabolic energy i.e. ATP.
