Exp:B Sunken stomata are commonly found in xerophytes. They are plants adopted to grow in desert conditions. Hydrophytes are plants that grow in water mesophytes are terrestrial plants which are adopted to niether a particularly dry not particularly wet environment.
MGIMS Wardha-2011
Anatomy of Flowering Plants
271736
Stoma opens, when
1 guard cells swell due to an increase in their water potential
2 gaurd cells swell by endosmosis due to influx of hydrogen ions (protons)
3 guard cells swell by endosmosis due to influx of potassium ions
4 guard cells swell due to a decrease in their water potential
Explanation:
Exp:D When there is light, potassium ions are pumped in which results is lowering of the water potential inside to guard cells. During day time stomata open, the osmotic pressure of the Guard cell become high as comparison to subsidiary cell or surrounding cell. When water inters from low osmotic pressure to high osmotic pressure that is water moves from surrounding cell in to the Guard cell, by endosmosis guard cell become turgid stomata opens.
Manipal-2009
Anatomy of Flowering Plants
271737
Distinguishing character of closed vascular bundles is
1 absence of cambium
2 presence of cambium
3 presence of xylem and phloem
4 presence of pith
Explanation:
Exp:A A closed vascular bundle means that there is an absence of a cambium they are not capable of forming the secondary xylem and tissue. In monocots the xylem is found within the inner side while the phloem is present outside the xylem and phloem is arranged side by side within the same radius.
VMMC-2010
Anatomy of Flowering Plants
271738
What happens during vascularisation in plants?
1 Differentiation of procambium followed by primary phloem and then primary xylem
2 Differentiation of procambium, xylem and phloem simultaneously
3 Differentiation of procambium followed immediately by the development of secondary xylem and phloem
4 Differentiation of procambium followed by the development of xylem and phloem
Explanation:
Exp:D Vascular plants grow and develop by the activity of organ forming regions, the growing plant. Development of vascular bundles from Pro- cambium is called as vascularisation. Thin walled elongated procambium strands are produced during the early growth and differenation which is turn immediately diffrenciate in to primary xylem and phloem.
Exp:B Sunken stomata are commonly found in xerophytes. They are plants adopted to grow in desert conditions. Hydrophytes are plants that grow in water mesophytes are terrestrial plants which are adopted to niether a particularly dry not particularly wet environment.
MGIMS Wardha-2011
Anatomy of Flowering Plants
271736
Stoma opens, when
1 guard cells swell due to an increase in their water potential
2 gaurd cells swell by endosmosis due to influx of hydrogen ions (protons)
3 guard cells swell by endosmosis due to influx of potassium ions
4 guard cells swell due to a decrease in their water potential
Explanation:
Exp:D When there is light, potassium ions are pumped in which results is lowering of the water potential inside to guard cells. During day time stomata open, the osmotic pressure of the Guard cell become high as comparison to subsidiary cell or surrounding cell. When water inters from low osmotic pressure to high osmotic pressure that is water moves from surrounding cell in to the Guard cell, by endosmosis guard cell become turgid stomata opens.
Manipal-2009
Anatomy of Flowering Plants
271737
Distinguishing character of closed vascular bundles is
1 absence of cambium
2 presence of cambium
3 presence of xylem and phloem
4 presence of pith
Explanation:
Exp:A A closed vascular bundle means that there is an absence of a cambium they are not capable of forming the secondary xylem and tissue. In monocots the xylem is found within the inner side while the phloem is present outside the xylem and phloem is arranged side by side within the same radius.
VMMC-2010
Anatomy of Flowering Plants
271738
What happens during vascularisation in plants?
1 Differentiation of procambium followed by primary phloem and then primary xylem
2 Differentiation of procambium, xylem and phloem simultaneously
3 Differentiation of procambium followed immediately by the development of secondary xylem and phloem
4 Differentiation of procambium followed by the development of xylem and phloem
Explanation:
Exp:D Vascular plants grow and develop by the activity of organ forming regions, the growing plant. Development of vascular bundles from Pro- cambium is called as vascularisation. Thin walled elongated procambium strands are produced during the early growth and differenation which is turn immediately diffrenciate in to primary xylem and phloem.
Exp:B Sunken stomata are commonly found in xerophytes. They are plants adopted to grow in desert conditions. Hydrophytes are plants that grow in water mesophytes are terrestrial plants which are adopted to niether a particularly dry not particularly wet environment.
MGIMS Wardha-2011
Anatomy of Flowering Plants
271736
Stoma opens, when
1 guard cells swell due to an increase in their water potential
2 gaurd cells swell by endosmosis due to influx of hydrogen ions (protons)
3 guard cells swell by endosmosis due to influx of potassium ions
4 guard cells swell due to a decrease in their water potential
Explanation:
Exp:D When there is light, potassium ions are pumped in which results is lowering of the water potential inside to guard cells. During day time stomata open, the osmotic pressure of the Guard cell become high as comparison to subsidiary cell or surrounding cell. When water inters from low osmotic pressure to high osmotic pressure that is water moves from surrounding cell in to the Guard cell, by endosmosis guard cell become turgid stomata opens.
Manipal-2009
Anatomy of Flowering Plants
271737
Distinguishing character of closed vascular bundles is
1 absence of cambium
2 presence of cambium
3 presence of xylem and phloem
4 presence of pith
Explanation:
Exp:A A closed vascular bundle means that there is an absence of a cambium they are not capable of forming the secondary xylem and tissue. In monocots the xylem is found within the inner side while the phloem is present outside the xylem and phloem is arranged side by side within the same radius.
VMMC-2010
Anatomy of Flowering Plants
271738
What happens during vascularisation in plants?
1 Differentiation of procambium followed by primary phloem and then primary xylem
2 Differentiation of procambium, xylem and phloem simultaneously
3 Differentiation of procambium followed immediately by the development of secondary xylem and phloem
4 Differentiation of procambium followed by the development of xylem and phloem
Explanation:
Exp:D Vascular plants grow and develop by the activity of organ forming regions, the growing plant. Development of vascular bundles from Pro- cambium is called as vascularisation. Thin walled elongated procambium strands are produced during the early growth and differenation which is turn immediately diffrenciate in to primary xylem and phloem.
Exp:B Sunken stomata are commonly found in xerophytes. They are plants adopted to grow in desert conditions. Hydrophytes are plants that grow in water mesophytes are terrestrial plants which are adopted to niether a particularly dry not particularly wet environment.
MGIMS Wardha-2011
Anatomy of Flowering Plants
271736
Stoma opens, when
1 guard cells swell due to an increase in their water potential
2 gaurd cells swell by endosmosis due to influx of hydrogen ions (protons)
3 guard cells swell by endosmosis due to influx of potassium ions
4 guard cells swell due to a decrease in their water potential
Explanation:
Exp:D When there is light, potassium ions are pumped in which results is lowering of the water potential inside to guard cells. During day time stomata open, the osmotic pressure of the Guard cell become high as comparison to subsidiary cell or surrounding cell. When water inters from low osmotic pressure to high osmotic pressure that is water moves from surrounding cell in to the Guard cell, by endosmosis guard cell become turgid stomata opens.
Manipal-2009
Anatomy of Flowering Plants
271737
Distinguishing character of closed vascular bundles is
1 absence of cambium
2 presence of cambium
3 presence of xylem and phloem
4 presence of pith
Explanation:
Exp:A A closed vascular bundle means that there is an absence of a cambium they are not capable of forming the secondary xylem and tissue. In monocots the xylem is found within the inner side while the phloem is present outside the xylem and phloem is arranged side by side within the same radius.
VMMC-2010
Anatomy of Flowering Plants
271738
What happens during vascularisation in plants?
1 Differentiation of procambium followed by primary phloem and then primary xylem
2 Differentiation of procambium, xylem and phloem simultaneously
3 Differentiation of procambium followed immediately by the development of secondary xylem and phloem
4 Differentiation of procambium followed by the development of xylem and phloem
Explanation:
Exp:D Vascular plants grow and develop by the activity of organ forming regions, the growing plant. Development of vascular bundles from Pro- cambium is called as vascularisation. Thin walled elongated procambium strands are produced during the early growth and differenation which is turn immediately diffrenciate in to primary xylem and phloem.
