NEET Test Series from KOTA - 10 Papers In MS WORD
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Photosynthesis in higher plants
238109
The first stable product of $\mathrm{CO}_{2}$ fixation in sorghum is
1 Phosphoglyceric acid
2 Pyruvic acid
3 Oxaloacetic acid
4 Succinic acid
Explanation:
C The first stable product of $\mathrm{CO}_{2}$ fixation in sorghum is oxaloacetic acid (4 carbon compound). - First stable product in $\mathrm{C}_{3}$-Cycle (calvin cycle) is 3phosphoglyceric acid. PGA is a 3 carbon compound, hence, these plants are called $\mathrm{C}_{3}$ plants. - Pyruvic acid is the end product of glycolysis and acts as a substrate and a co-factor. - Succinic acid is an intermediate product in krebs cycle or citric acid cycle.
NEET-2021
Photosynthesis in higher plants
238111
Select the mismatched pair?
1 F.W. Went-Auxin
2 Buchner-Zymase
3 H. G. Khorana - $\mathrm{C}_{4}$ pathway
4 Frankel Conrat - RNA
Explanation:
C $\mathrm{C}_{4}$ pathway was discovered by M.D. Hatch and C.R. Slack in 1966. So, that this pathway is known as Hatch and slack pathway. H.G Khorana is associated with genetic research and DNA synthesis. He was also awarded Nobel Prize for his work on the genetic code and the synthesis of oligonucleotides.
AP EAMCET-03.09.2021 Shift-I
Photosynthesis in higher plants
238113
Which of the following statements is incorrect?
1 RuBisCO action requires ATP and NADPH
2 $\mathrm{RuBisCO}$ is a bifunctional enzyme
3 In $\mathrm{C}_{4}$ plants, the site of RuBisCO activity is mesophyll cell.
4 The substrate molecule for RuBisCO activity is a 5 -carbon compound
Explanation:
C In $\mathrm{C}_{3}$ plants, RuBisCO occurs in mesophyll cells, where as in $\mathrm{C}_{4}$ plants $\mathrm{RuBisCO}$ is present in bundle sheath cells. RuBisCO plays a vital role in $\mathrm{CO}_{2}$ fixation during the calvin cycle. RuBisCO break down 6-carbon compound into two molecule of 3 carbon compound, and the energy in ATP and NADPH is used to convert molecules into Glyceraldehyde 3 phosphate. The substrate for RuBisCO is ribulose-1,5-biphosphate (5 carbon compound).
NEET-2020 Phase-II
Photosynthesis in higher plants
238114
In Hatch and Slack pathway, the primary $\mathrm{CO}_{2}$ acceptor is
1 Rubisco
2 Oxaloacetic acid
3 Phosphoglyceric acid
4 Phosphoenol pyruvate
Explanation:
D The $\mathrm{C}_{4}$ pathway initiates with a molecule called phosphoenol pyruvate (PEP), which is a 3carbon molecule and acts as the primary $\mathrm{CO}_{2}$ acceptor in the mesophyll cells of $\mathrm{C}_{4}$ plants. - In the Hatch and Slack pathway, phosphoenol pyruvate is the primary $\mathrm{CO}_{2}$ acceptor and is seen in the mesophyll cells. The carboxylation takes place with the help of an enzyme called PEP carboxylase. They yield a 4 - C molecule called Oxaloacetic acid (OAA).
238109
The first stable product of $\mathrm{CO}_{2}$ fixation in sorghum is
1 Phosphoglyceric acid
2 Pyruvic acid
3 Oxaloacetic acid
4 Succinic acid
Explanation:
C The first stable product of $\mathrm{CO}_{2}$ fixation in sorghum is oxaloacetic acid (4 carbon compound). - First stable product in $\mathrm{C}_{3}$-Cycle (calvin cycle) is 3phosphoglyceric acid. PGA is a 3 carbon compound, hence, these plants are called $\mathrm{C}_{3}$ plants. - Pyruvic acid is the end product of glycolysis and acts as a substrate and a co-factor. - Succinic acid is an intermediate product in krebs cycle or citric acid cycle.
NEET-2021
Photosynthesis in higher plants
238111
Select the mismatched pair?
1 F.W. Went-Auxin
2 Buchner-Zymase
3 H. G. Khorana - $\mathrm{C}_{4}$ pathway
4 Frankel Conrat - RNA
Explanation:
C $\mathrm{C}_{4}$ pathway was discovered by M.D. Hatch and C.R. Slack in 1966. So, that this pathway is known as Hatch and slack pathway. H.G Khorana is associated with genetic research and DNA synthesis. He was also awarded Nobel Prize for his work on the genetic code and the synthesis of oligonucleotides.
AP EAMCET-03.09.2021 Shift-I
Photosynthesis in higher plants
238113
Which of the following statements is incorrect?
1 RuBisCO action requires ATP and NADPH
2 $\mathrm{RuBisCO}$ is a bifunctional enzyme
3 In $\mathrm{C}_{4}$ plants, the site of RuBisCO activity is mesophyll cell.
4 The substrate molecule for RuBisCO activity is a 5 -carbon compound
Explanation:
C In $\mathrm{C}_{3}$ plants, RuBisCO occurs in mesophyll cells, where as in $\mathrm{C}_{4}$ plants $\mathrm{RuBisCO}$ is present in bundle sheath cells. RuBisCO plays a vital role in $\mathrm{CO}_{2}$ fixation during the calvin cycle. RuBisCO break down 6-carbon compound into two molecule of 3 carbon compound, and the energy in ATP and NADPH is used to convert molecules into Glyceraldehyde 3 phosphate. The substrate for RuBisCO is ribulose-1,5-biphosphate (5 carbon compound).
NEET-2020 Phase-II
Photosynthesis in higher plants
238114
In Hatch and Slack pathway, the primary $\mathrm{CO}_{2}$ acceptor is
1 Rubisco
2 Oxaloacetic acid
3 Phosphoglyceric acid
4 Phosphoenol pyruvate
Explanation:
D The $\mathrm{C}_{4}$ pathway initiates with a molecule called phosphoenol pyruvate (PEP), which is a 3carbon molecule and acts as the primary $\mathrm{CO}_{2}$ acceptor in the mesophyll cells of $\mathrm{C}_{4}$ plants. - In the Hatch and Slack pathway, phosphoenol pyruvate is the primary $\mathrm{CO}_{2}$ acceptor and is seen in the mesophyll cells. The carboxylation takes place with the help of an enzyme called PEP carboxylase. They yield a 4 - C molecule called Oxaloacetic acid (OAA).
238109
The first stable product of $\mathrm{CO}_{2}$ fixation in sorghum is
1 Phosphoglyceric acid
2 Pyruvic acid
3 Oxaloacetic acid
4 Succinic acid
Explanation:
C The first stable product of $\mathrm{CO}_{2}$ fixation in sorghum is oxaloacetic acid (4 carbon compound). - First stable product in $\mathrm{C}_{3}$-Cycle (calvin cycle) is 3phosphoglyceric acid. PGA is a 3 carbon compound, hence, these plants are called $\mathrm{C}_{3}$ plants. - Pyruvic acid is the end product of glycolysis and acts as a substrate and a co-factor. - Succinic acid is an intermediate product in krebs cycle or citric acid cycle.
NEET-2021
Photosynthesis in higher plants
238111
Select the mismatched pair?
1 F.W. Went-Auxin
2 Buchner-Zymase
3 H. G. Khorana - $\mathrm{C}_{4}$ pathway
4 Frankel Conrat - RNA
Explanation:
C $\mathrm{C}_{4}$ pathway was discovered by M.D. Hatch and C.R. Slack in 1966. So, that this pathway is known as Hatch and slack pathway. H.G Khorana is associated with genetic research and DNA synthesis. He was also awarded Nobel Prize for his work on the genetic code and the synthesis of oligonucleotides.
AP EAMCET-03.09.2021 Shift-I
Photosynthesis in higher plants
238113
Which of the following statements is incorrect?
1 RuBisCO action requires ATP and NADPH
2 $\mathrm{RuBisCO}$ is a bifunctional enzyme
3 In $\mathrm{C}_{4}$ plants, the site of RuBisCO activity is mesophyll cell.
4 The substrate molecule for RuBisCO activity is a 5 -carbon compound
Explanation:
C In $\mathrm{C}_{3}$ plants, RuBisCO occurs in mesophyll cells, where as in $\mathrm{C}_{4}$ plants $\mathrm{RuBisCO}$ is present in bundle sheath cells. RuBisCO plays a vital role in $\mathrm{CO}_{2}$ fixation during the calvin cycle. RuBisCO break down 6-carbon compound into two molecule of 3 carbon compound, and the energy in ATP and NADPH is used to convert molecules into Glyceraldehyde 3 phosphate. The substrate for RuBisCO is ribulose-1,5-biphosphate (5 carbon compound).
NEET-2020 Phase-II
Photosynthesis in higher plants
238114
In Hatch and Slack pathway, the primary $\mathrm{CO}_{2}$ acceptor is
1 Rubisco
2 Oxaloacetic acid
3 Phosphoglyceric acid
4 Phosphoenol pyruvate
Explanation:
D The $\mathrm{C}_{4}$ pathway initiates with a molecule called phosphoenol pyruvate (PEP), which is a 3carbon molecule and acts as the primary $\mathrm{CO}_{2}$ acceptor in the mesophyll cells of $\mathrm{C}_{4}$ plants. - In the Hatch and Slack pathway, phosphoenol pyruvate is the primary $\mathrm{CO}_{2}$ acceptor and is seen in the mesophyll cells. The carboxylation takes place with the help of an enzyme called PEP carboxylase. They yield a 4 - C molecule called Oxaloacetic acid (OAA).
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Photosynthesis in higher plants
238109
The first stable product of $\mathrm{CO}_{2}$ fixation in sorghum is
1 Phosphoglyceric acid
2 Pyruvic acid
3 Oxaloacetic acid
4 Succinic acid
Explanation:
C The first stable product of $\mathrm{CO}_{2}$ fixation in sorghum is oxaloacetic acid (4 carbon compound). - First stable product in $\mathrm{C}_{3}$-Cycle (calvin cycle) is 3phosphoglyceric acid. PGA is a 3 carbon compound, hence, these plants are called $\mathrm{C}_{3}$ plants. - Pyruvic acid is the end product of glycolysis and acts as a substrate and a co-factor. - Succinic acid is an intermediate product in krebs cycle or citric acid cycle.
NEET-2021
Photosynthesis in higher plants
238111
Select the mismatched pair?
1 F.W. Went-Auxin
2 Buchner-Zymase
3 H. G. Khorana - $\mathrm{C}_{4}$ pathway
4 Frankel Conrat - RNA
Explanation:
C $\mathrm{C}_{4}$ pathway was discovered by M.D. Hatch and C.R. Slack in 1966. So, that this pathway is known as Hatch and slack pathway. H.G Khorana is associated with genetic research and DNA synthesis. He was also awarded Nobel Prize for his work on the genetic code and the synthesis of oligonucleotides.
AP EAMCET-03.09.2021 Shift-I
Photosynthesis in higher plants
238113
Which of the following statements is incorrect?
1 RuBisCO action requires ATP and NADPH
2 $\mathrm{RuBisCO}$ is a bifunctional enzyme
3 In $\mathrm{C}_{4}$ plants, the site of RuBisCO activity is mesophyll cell.
4 The substrate molecule for RuBisCO activity is a 5 -carbon compound
Explanation:
C In $\mathrm{C}_{3}$ plants, RuBisCO occurs in mesophyll cells, where as in $\mathrm{C}_{4}$ plants $\mathrm{RuBisCO}$ is present in bundle sheath cells. RuBisCO plays a vital role in $\mathrm{CO}_{2}$ fixation during the calvin cycle. RuBisCO break down 6-carbon compound into two molecule of 3 carbon compound, and the energy in ATP and NADPH is used to convert molecules into Glyceraldehyde 3 phosphate. The substrate for RuBisCO is ribulose-1,5-biphosphate (5 carbon compound).
NEET-2020 Phase-II
Photosynthesis in higher plants
238114
In Hatch and Slack pathway, the primary $\mathrm{CO}_{2}$ acceptor is
1 Rubisco
2 Oxaloacetic acid
3 Phosphoglyceric acid
4 Phosphoenol pyruvate
Explanation:
D The $\mathrm{C}_{4}$ pathway initiates with a molecule called phosphoenol pyruvate (PEP), which is a 3carbon molecule and acts as the primary $\mathrm{CO}_{2}$ acceptor in the mesophyll cells of $\mathrm{C}_{4}$ plants. - In the Hatch and Slack pathway, phosphoenol pyruvate is the primary $\mathrm{CO}_{2}$ acceptor and is seen in the mesophyll cells. The carboxylation takes place with the help of an enzyme called PEP carboxylase. They yield a 4 - C molecule called Oxaloacetic acid (OAA).
