336954
What is incorrect statement about bundle sheath cells?
1 No intercellular spaces
2 Large number of chloroplasts
3 Thick walls
4 Single layer
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterised by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336955
Match the following Columns I & II and choose the correct option. Column I Column II A Carboxylation P \({C_4}\) acid B Ribulose Q Fixation of \(C{O_2}\) C Oxalo-acetic acid R 5-carbon ketose
1 A-Q , B-R , C-P
2 A-P , B-Q , C-R
3 A-Q , B-P , C-R
4 A-R , B-Q , C-P
Explanation:
A. Carboxylation - Q. Fixation of \(C{O_2}\) B. Ribulose - R. 5-carbon ketose C. Oxalo-acetic acid - P. \({C_4}\) acid
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336956
Which of the following is the secondary acceptor of \(C{O_2}\) in \({C_4}\) plants?
1 PEP
2 RUBP
3 PEPA
4 PGA
Explanation:
The primary acceptor of \(C{O_2}\) in \({C_4}\) plants is a 3 carbon molecule, phosphoenol pyruvate (PEP). The secondary acceptor of \(C{O_2}\) in \({C_4}\) plants is RuBP, which undergoes carboxylation in Calvin pathway.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336957
In the leaves of \({C_4}\) plants, malic acid formation during \(C{O_2}\) fixation occurs in the cells of
1 Mesophyll
2 Bundle sheath
3 Phloem
4 Epidermis
Explanation:
The oxalic acid is reduced to malic acid in mesophyll cells, from mesophyll it is transferred to bundle sheath where it is decarboxylated to form \(C{O_2}\) and pyruvic acid.
AIPMT - 2007
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336958
PEPcase + RuBisCo is present in the \({C_4}\) plants. The advantage is that -
1 PEPcase is an enzyme while RuBisCo is just a structural protein
2 PEP case combines with \(C{O_2}\) even if it is less in amount RuBisCO comes in further .
3 PEPcase combines with \({O_2}\) + carbon dioxide
4 PEPcase is present in both mesophyll and bundle sheath but RuBisCO is not
Explanation:
PEPcase shows carboxylase activity only, even in the presence of less \(C{O_2}\) concentration.
336954
What is incorrect statement about bundle sheath cells?
1 No intercellular spaces
2 Large number of chloroplasts
3 Thick walls
4 Single layer
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterised by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336955
Match the following Columns I & II and choose the correct option. Column I Column II A Carboxylation P \({C_4}\) acid B Ribulose Q Fixation of \(C{O_2}\) C Oxalo-acetic acid R 5-carbon ketose
1 A-Q , B-R , C-P
2 A-P , B-Q , C-R
3 A-Q , B-P , C-R
4 A-R , B-Q , C-P
Explanation:
A. Carboxylation - Q. Fixation of \(C{O_2}\) B. Ribulose - R. 5-carbon ketose C. Oxalo-acetic acid - P. \({C_4}\) acid
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336956
Which of the following is the secondary acceptor of \(C{O_2}\) in \({C_4}\) plants?
1 PEP
2 RUBP
3 PEPA
4 PGA
Explanation:
The primary acceptor of \(C{O_2}\) in \({C_4}\) plants is a 3 carbon molecule, phosphoenol pyruvate (PEP). The secondary acceptor of \(C{O_2}\) in \({C_4}\) plants is RuBP, which undergoes carboxylation in Calvin pathway.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336957
In the leaves of \({C_4}\) plants, malic acid formation during \(C{O_2}\) fixation occurs in the cells of
1 Mesophyll
2 Bundle sheath
3 Phloem
4 Epidermis
Explanation:
The oxalic acid is reduced to malic acid in mesophyll cells, from mesophyll it is transferred to bundle sheath where it is decarboxylated to form \(C{O_2}\) and pyruvic acid.
AIPMT - 2007
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336958
PEPcase + RuBisCo is present in the \({C_4}\) plants. The advantage is that -
1 PEPcase is an enzyme while RuBisCo is just a structural protein
2 PEP case combines with \(C{O_2}\) even if it is less in amount RuBisCO comes in further .
3 PEPcase combines with \({O_2}\) + carbon dioxide
4 PEPcase is present in both mesophyll and bundle sheath but RuBisCO is not
Explanation:
PEPcase shows carboxylase activity only, even in the presence of less \(C{O_2}\) concentration.
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BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336954
What is incorrect statement about bundle sheath cells?
1 No intercellular spaces
2 Large number of chloroplasts
3 Thick walls
4 Single layer
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterised by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336955
Match the following Columns I & II and choose the correct option. Column I Column II A Carboxylation P \({C_4}\) acid B Ribulose Q Fixation of \(C{O_2}\) C Oxalo-acetic acid R 5-carbon ketose
1 A-Q , B-R , C-P
2 A-P , B-Q , C-R
3 A-Q , B-P , C-R
4 A-R , B-Q , C-P
Explanation:
A. Carboxylation - Q. Fixation of \(C{O_2}\) B. Ribulose - R. 5-carbon ketose C. Oxalo-acetic acid - P. \({C_4}\) acid
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336956
Which of the following is the secondary acceptor of \(C{O_2}\) in \({C_4}\) plants?
1 PEP
2 RUBP
3 PEPA
4 PGA
Explanation:
The primary acceptor of \(C{O_2}\) in \({C_4}\) plants is a 3 carbon molecule, phosphoenol pyruvate (PEP). The secondary acceptor of \(C{O_2}\) in \({C_4}\) plants is RuBP, which undergoes carboxylation in Calvin pathway.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336957
In the leaves of \({C_4}\) plants, malic acid formation during \(C{O_2}\) fixation occurs in the cells of
1 Mesophyll
2 Bundle sheath
3 Phloem
4 Epidermis
Explanation:
The oxalic acid is reduced to malic acid in mesophyll cells, from mesophyll it is transferred to bundle sheath where it is decarboxylated to form \(C{O_2}\) and pyruvic acid.
AIPMT - 2007
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336958
PEPcase + RuBisCo is present in the \({C_4}\) plants. The advantage is that -
1 PEPcase is an enzyme while RuBisCo is just a structural protein
2 PEP case combines with \(C{O_2}\) even if it is less in amount RuBisCO comes in further .
3 PEPcase combines with \({O_2}\) + carbon dioxide
4 PEPcase is present in both mesophyll and bundle sheath but RuBisCO is not
Explanation:
PEPcase shows carboxylase activity only, even in the presence of less \(C{O_2}\) concentration.
336954
What is incorrect statement about bundle sheath cells?
1 No intercellular spaces
2 Large number of chloroplasts
3 Thick walls
4 Single layer
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterised by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336955
Match the following Columns I & II and choose the correct option. Column I Column II A Carboxylation P \({C_4}\) acid B Ribulose Q Fixation of \(C{O_2}\) C Oxalo-acetic acid R 5-carbon ketose
1 A-Q , B-R , C-P
2 A-P , B-Q , C-R
3 A-Q , B-P , C-R
4 A-R , B-Q , C-P
Explanation:
A. Carboxylation - Q. Fixation of \(C{O_2}\) B. Ribulose - R. 5-carbon ketose C. Oxalo-acetic acid - P. \({C_4}\) acid
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336956
Which of the following is the secondary acceptor of \(C{O_2}\) in \({C_4}\) plants?
1 PEP
2 RUBP
3 PEPA
4 PGA
Explanation:
The primary acceptor of \(C{O_2}\) in \({C_4}\) plants is a 3 carbon molecule, phosphoenol pyruvate (PEP). The secondary acceptor of \(C{O_2}\) in \({C_4}\) plants is RuBP, which undergoes carboxylation in Calvin pathway.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336957
In the leaves of \({C_4}\) plants, malic acid formation during \(C{O_2}\) fixation occurs in the cells of
1 Mesophyll
2 Bundle sheath
3 Phloem
4 Epidermis
Explanation:
The oxalic acid is reduced to malic acid in mesophyll cells, from mesophyll it is transferred to bundle sheath where it is decarboxylated to form \(C{O_2}\) and pyruvic acid.
AIPMT - 2007
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336958
PEPcase + RuBisCo is present in the \({C_4}\) plants. The advantage is that -
1 PEPcase is an enzyme while RuBisCo is just a structural protein
2 PEP case combines with \(C{O_2}\) even if it is less in amount RuBisCO comes in further .
3 PEPcase combines with \({O_2}\) + carbon dioxide
4 PEPcase is present in both mesophyll and bundle sheath but RuBisCO is not
Explanation:
PEPcase shows carboxylase activity only, even in the presence of less \(C{O_2}\) concentration.
336954
What is incorrect statement about bundle sheath cells?
1 No intercellular spaces
2 Large number of chloroplasts
3 Thick walls
4 Single layer
Explanation:
The bundle sheath cells may form several layers around the vascular bundles; they are characterised by having a large number of chloroplasts, thick walls impervious to gaseous exchange and no intercellular spaces.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336955
Match the following Columns I & II and choose the correct option. Column I Column II A Carboxylation P \({C_4}\) acid B Ribulose Q Fixation of \(C{O_2}\) C Oxalo-acetic acid R 5-carbon ketose
1 A-Q , B-R , C-P
2 A-P , B-Q , C-R
3 A-Q , B-P , C-R
4 A-R , B-Q , C-P
Explanation:
A. Carboxylation - Q. Fixation of \(C{O_2}\) B. Ribulose - R. 5-carbon ketose C. Oxalo-acetic acid - P. \({C_4}\) acid
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336956
Which of the following is the secondary acceptor of \(C{O_2}\) in \({C_4}\) plants?
1 PEP
2 RUBP
3 PEPA
4 PGA
Explanation:
The primary acceptor of \(C{O_2}\) in \({C_4}\) plants is a 3 carbon molecule, phosphoenol pyruvate (PEP). The secondary acceptor of \(C{O_2}\) in \({C_4}\) plants is RuBP, which undergoes carboxylation in Calvin pathway.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336957
In the leaves of \({C_4}\) plants, malic acid formation during \(C{O_2}\) fixation occurs in the cells of
1 Mesophyll
2 Bundle sheath
3 Phloem
4 Epidermis
Explanation:
The oxalic acid is reduced to malic acid in mesophyll cells, from mesophyll it is transferred to bundle sheath where it is decarboxylated to form \(C{O_2}\) and pyruvic acid.
AIPMT - 2007
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
336958
PEPcase + RuBisCo is present in the \({C_4}\) plants. The advantage is that -
1 PEPcase is an enzyme while RuBisCo is just a structural protein
2 PEP case combines with \(C{O_2}\) even if it is less in amount RuBisCO comes in further .
3 PEPcase combines with \({O_2}\) + carbon dioxide
4 PEPcase is present in both mesophyll and bundle sheath but RuBisCO is not
Explanation:
PEPcase shows carboxylase activity only, even in the presence of less \(C{O_2}\) concentration.