336919
What is the role of large bundle shealth cells found around the vascular bundles in \({C_4}\) plants?
1 To increase the number of chloroplast for the operation of Calvin cycle
2 To enable the plant to tolerate high temperature
3 To protect the vascular tissue from high light intensity
4 To provide the site for photorespiratory pathway
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterized by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
NEET - 2022
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336920
The basic feature of typical C4 plants showing ‘Kranz’ anatomy is
1 The presence of non granal chloroplasts in bundle sheath cells and granal chloroplasts in mesophyll cells
2 The presence of granal chloroplasts in bundle sheath cells and non granal chloroplasts in mesophyll cells
3 The presence of chloroplasts with well formed grana in bundle sheath cells and chloroplasts absent in the mesophyll cells
4 The chloroplast in both is the same
Explanation:
Kranz anatomy is characterised by presence of bundle sheath cells. In the chloroplasts of these cells, grana are absent. They are present in the chloroplasts of normal mesophyll cells.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336921
Which of the following characteristics are present in \({C_3}\) plants but not in \({C_4}\) plants?
1 Initial involvement of RUBP carboxylase in \(C{O_2}\) assimilation
2 Presence of photorespiration
3 Presence of well developed bundle sheath
4 1 and 2
Explanation:
Both (1) and (2)
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336922
Fixation of \(\mathrm{CO}_{2}\) molecule through Hatch and Slack pathway requires an enzyme called ____
1 PEPcase
2 RuBisCO
3 RuBP carboxylase
4 Catalase
Explanation:
In \(C_{4}\) plants, a 4 - \(C\) compound oxaloacetic acid (OAA) is the first stable product, and phosphoenol pyruvate (PEP) is the \(\mathrm{CO}_{2}\) acceptor. This reaction is catalyzed by the enzyme PEP carboxylase or PEP case in mesophyll cells of the leaf.
336919
What is the role of large bundle shealth cells found around the vascular bundles in \({C_4}\) plants?
1 To increase the number of chloroplast for the operation of Calvin cycle
2 To enable the plant to tolerate high temperature
3 To protect the vascular tissue from high light intensity
4 To provide the site for photorespiratory pathway
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterized by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
NEET - 2022
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336920
The basic feature of typical C4 plants showing ‘Kranz’ anatomy is
1 The presence of non granal chloroplasts in bundle sheath cells and granal chloroplasts in mesophyll cells
2 The presence of granal chloroplasts in bundle sheath cells and non granal chloroplasts in mesophyll cells
3 The presence of chloroplasts with well formed grana in bundle sheath cells and chloroplasts absent in the mesophyll cells
4 The chloroplast in both is the same
Explanation:
Kranz anatomy is characterised by presence of bundle sheath cells. In the chloroplasts of these cells, grana are absent. They are present in the chloroplasts of normal mesophyll cells.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336921
Which of the following characteristics are present in \({C_3}\) plants but not in \({C_4}\) plants?
1 Initial involvement of RUBP carboxylase in \(C{O_2}\) assimilation
2 Presence of photorespiration
3 Presence of well developed bundle sheath
4 1 and 2
Explanation:
Both (1) and (2)
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336922
Fixation of \(\mathrm{CO}_{2}\) molecule through Hatch and Slack pathway requires an enzyme called ____
1 PEPcase
2 RuBisCO
3 RuBP carboxylase
4 Catalase
Explanation:
In \(C_{4}\) plants, a 4 - \(C\) compound oxaloacetic acid (OAA) is the first stable product, and phosphoenol pyruvate (PEP) is the \(\mathrm{CO}_{2}\) acceptor. This reaction is catalyzed by the enzyme PEP carboxylase or PEP case in mesophyll cells of the leaf.
336919
What is the role of large bundle shealth cells found around the vascular bundles in \({C_4}\) plants?
1 To increase the number of chloroplast for the operation of Calvin cycle
2 To enable the plant to tolerate high temperature
3 To protect the vascular tissue from high light intensity
4 To provide the site for photorespiratory pathway
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterized by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
NEET - 2022
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336920
The basic feature of typical C4 plants showing ‘Kranz’ anatomy is
1 The presence of non granal chloroplasts in bundle sheath cells and granal chloroplasts in mesophyll cells
2 The presence of granal chloroplasts in bundle sheath cells and non granal chloroplasts in mesophyll cells
3 The presence of chloroplasts with well formed grana in bundle sheath cells and chloroplasts absent in the mesophyll cells
4 The chloroplast in both is the same
Explanation:
Kranz anatomy is characterised by presence of bundle sheath cells. In the chloroplasts of these cells, grana are absent. They are present in the chloroplasts of normal mesophyll cells.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336921
Which of the following characteristics are present in \({C_3}\) plants but not in \({C_4}\) plants?
1 Initial involvement of RUBP carboxylase in \(C{O_2}\) assimilation
2 Presence of photorespiration
3 Presence of well developed bundle sheath
4 1 and 2
Explanation:
Both (1) and (2)
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336922
Fixation of \(\mathrm{CO}_{2}\) molecule through Hatch and Slack pathway requires an enzyme called ____
1 PEPcase
2 RuBisCO
3 RuBP carboxylase
4 Catalase
Explanation:
In \(C_{4}\) plants, a 4 - \(C\) compound oxaloacetic acid (OAA) is the first stable product, and phosphoenol pyruvate (PEP) is the \(\mathrm{CO}_{2}\) acceptor. This reaction is catalyzed by the enzyme PEP carboxylase or PEP case in mesophyll cells of the leaf.
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BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336919
What is the role of large bundle shealth cells found around the vascular bundles in \({C_4}\) plants?
1 To increase the number of chloroplast for the operation of Calvin cycle
2 To enable the plant to tolerate high temperature
3 To protect the vascular tissue from high light intensity
4 To provide the site for photorespiratory pathway
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterized by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
NEET - 2022
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336920
The basic feature of typical C4 plants showing ‘Kranz’ anatomy is
1 The presence of non granal chloroplasts in bundle sheath cells and granal chloroplasts in mesophyll cells
2 The presence of granal chloroplasts in bundle sheath cells and non granal chloroplasts in mesophyll cells
3 The presence of chloroplasts with well formed grana in bundle sheath cells and chloroplasts absent in the mesophyll cells
4 The chloroplast in both is the same
Explanation:
Kranz anatomy is characterised by presence of bundle sheath cells. In the chloroplasts of these cells, grana are absent. They are present in the chloroplasts of normal mesophyll cells.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336921
Which of the following characteristics are present in \({C_3}\) plants but not in \({C_4}\) plants?
1 Initial involvement of RUBP carboxylase in \(C{O_2}\) assimilation
2 Presence of photorespiration
3 Presence of well developed bundle sheath
4 1 and 2
Explanation:
Both (1) and (2)
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336922
Fixation of \(\mathrm{CO}_{2}\) molecule through Hatch and Slack pathway requires an enzyme called ____
1 PEPcase
2 RuBisCO
3 RuBP carboxylase
4 Catalase
Explanation:
In \(C_{4}\) plants, a 4 - \(C\) compound oxaloacetic acid (OAA) is the first stable product, and phosphoenol pyruvate (PEP) is the \(\mathrm{CO}_{2}\) acceptor. This reaction is catalyzed by the enzyme PEP carboxylase or PEP case in mesophyll cells of the leaf.
