NEET Test Series from KOTA - 10 Papers In MS WORD
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Photosynthesis in higher plants
238142
Two enzymes common to EMP pathway and $C_{3}$ cycle are
1 Aldolase and triose phosphate isomerase
2 Aldolase and enolase
3 Cytochrome oxidase and enolase
4 Phosphoglyceromutase and triose phosphate isomerase.
Explanation:
A Aldolase and triose phosphate isomerase both enzymes are common to EMP \& $\mathrm{C}_{3}$ cycle. EMP pathway in $\mathrm{C}_{3}$ cycle $3-$ phosphoglyceraldehyde $\underset{\text { isomerase }}{\stackrel{\text { Triose-phosphate }}{\rightleftharpoons}}$ dihydroxyaceto ne phosphate +3 phosphoglyceraldehyde $\stackrel{\text { Aldolase }}{\longrightarrow}$ fructose-1-6-diphosphate.
AMU-1998
Photosynthesis in higher plants
238143
To form one molecule of glyceraldehydes phosphate in Calvin cycle :
1 9ATP and $36 \mathrm{NADPH}$ are required
2 6ATP and $6 \mathrm{NADPH}$ are required
3 $3 \mathrm{ATP}$ and $3 \mathrm{NADPH}$ are required
4 9 ATP and 6 NADPH are required
Explanation:
D For fixation of six $\mathrm{CO}_{2}$ molecules during Calvin cycle of photosynthesis, 18 molecules of ATP and 12 molecules of $\mathrm{NADPH}_{2}$ are required. - One molecule of glyceraldehyde 3 phosphate is formed by fixation of $3 \mathrm{CO}_{2}$ molecules. For a 3 carbon molecule to be synthesized, 3 turns of the calvin cycle are required, with the entry of a molecule of $\mathrm{CO}_{2}$ at each turn. Each turn of Calvin cycle consumes 3 ATP \& 2 NADPH molecule So- $3 \times 3$ ATP $=9$ ATP $3 \times 2 \mathrm{NADPH}=6 \mathrm{NADPH}$
Haryana PMT-2005
Photosynthesis in higher plants
238144
3-phosphoglyceric acid (PGA) as the first $\mathrm{CO}_{2}$ fixation product in algal photosynthesis was discovered by
1 Joseph Priestley
2 Jan Ingenhousz
3 T.W. Engelmann
4 Julius von Sachs
5 Melvin Calvin
Explanation:
E PGA or 3-phosphoglyceric acid as first $\mathrm{CO}_{2}$ fixation product in algal photosynthesis was discovered by Melvin Calvin. He used radioactive ${ }^{14} \mathrm{C}$ in algal photosynthetic studies. Carbon atoms from $\mathrm{CO}_{2}$ are fixed and used to make 3carbon sugars in the calvin cycle. This cycle is powered up, and subject to, ATP and NADPH from the light response, which occur in the thylakoid film. The response of the calvin cycle happen in the stroma (the inner space of chloroplasts). The first stable product was 3-phosphoglyceric acid (PGA), hence it is named as $\mathrm{C}_{3}$ pathway.
Kerala PMT-2015
Photosynthesis in higher plants
238097
Calvin cycle occurs in :
1 cytoplasm
2 chloroplasts
3 mitochondria
4 glyoxysomes
Explanation:
B The conversion of carbon dioxide into glucose takes place through a light dependent reaction, also called the Calvin cycle. It is performed in the stroma of the chloroplast. Calvin cycle occurs in both $\mathrm{C}_{3}$ plant and $\mathrm{C}_{4}$ plant. In $\mathrm{C}_{3}$ plant it occurs in mesophyll cell but in $\mathrm{C}_{4}$ - plant takes place in bundle sheath cell.
238142
Two enzymes common to EMP pathway and $C_{3}$ cycle are
1 Aldolase and triose phosphate isomerase
2 Aldolase and enolase
3 Cytochrome oxidase and enolase
4 Phosphoglyceromutase and triose phosphate isomerase.
Explanation:
A Aldolase and triose phosphate isomerase both enzymes are common to EMP \& $\mathrm{C}_{3}$ cycle. EMP pathway in $\mathrm{C}_{3}$ cycle $3-$ phosphoglyceraldehyde $\underset{\text { isomerase }}{\stackrel{\text { Triose-phosphate }}{\rightleftharpoons}}$ dihydroxyaceto ne phosphate +3 phosphoglyceraldehyde $\stackrel{\text { Aldolase }}{\longrightarrow}$ fructose-1-6-diphosphate.
AMU-1998
Photosynthesis in higher plants
238143
To form one molecule of glyceraldehydes phosphate in Calvin cycle :
1 9ATP and $36 \mathrm{NADPH}$ are required
2 6ATP and $6 \mathrm{NADPH}$ are required
3 $3 \mathrm{ATP}$ and $3 \mathrm{NADPH}$ are required
4 9 ATP and 6 NADPH are required
Explanation:
D For fixation of six $\mathrm{CO}_{2}$ molecules during Calvin cycle of photosynthesis, 18 molecules of ATP and 12 molecules of $\mathrm{NADPH}_{2}$ are required. - One molecule of glyceraldehyde 3 phosphate is formed by fixation of $3 \mathrm{CO}_{2}$ molecules. For a 3 carbon molecule to be synthesized, 3 turns of the calvin cycle are required, with the entry of a molecule of $\mathrm{CO}_{2}$ at each turn. Each turn of Calvin cycle consumes 3 ATP \& 2 NADPH molecule So- $3 \times 3$ ATP $=9$ ATP $3 \times 2 \mathrm{NADPH}=6 \mathrm{NADPH}$
Haryana PMT-2005
Photosynthesis in higher plants
238144
3-phosphoglyceric acid (PGA) as the first $\mathrm{CO}_{2}$ fixation product in algal photosynthesis was discovered by
1 Joseph Priestley
2 Jan Ingenhousz
3 T.W. Engelmann
4 Julius von Sachs
5 Melvin Calvin
Explanation:
E PGA or 3-phosphoglyceric acid as first $\mathrm{CO}_{2}$ fixation product in algal photosynthesis was discovered by Melvin Calvin. He used radioactive ${ }^{14} \mathrm{C}$ in algal photosynthetic studies. Carbon atoms from $\mathrm{CO}_{2}$ are fixed and used to make 3carbon sugars in the calvin cycle. This cycle is powered up, and subject to, ATP and NADPH from the light response, which occur in the thylakoid film. The response of the calvin cycle happen in the stroma (the inner space of chloroplasts). The first stable product was 3-phosphoglyceric acid (PGA), hence it is named as $\mathrm{C}_{3}$ pathway.
Kerala PMT-2015
Photosynthesis in higher plants
238097
Calvin cycle occurs in :
1 cytoplasm
2 chloroplasts
3 mitochondria
4 glyoxysomes
Explanation:
B The conversion of carbon dioxide into glucose takes place through a light dependent reaction, also called the Calvin cycle. It is performed in the stroma of the chloroplast. Calvin cycle occurs in both $\mathrm{C}_{3}$ plant and $\mathrm{C}_{4}$ plant. In $\mathrm{C}_{3}$ plant it occurs in mesophyll cell but in $\mathrm{C}_{4}$ - plant takes place in bundle sheath cell.
238142
Two enzymes common to EMP pathway and $C_{3}$ cycle are
1 Aldolase and triose phosphate isomerase
2 Aldolase and enolase
3 Cytochrome oxidase and enolase
4 Phosphoglyceromutase and triose phosphate isomerase.
Explanation:
A Aldolase and triose phosphate isomerase both enzymes are common to EMP \& $\mathrm{C}_{3}$ cycle. EMP pathway in $\mathrm{C}_{3}$ cycle $3-$ phosphoglyceraldehyde $\underset{\text { isomerase }}{\stackrel{\text { Triose-phosphate }}{\rightleftharpoons}}$ dihydroxyaceto ne phosphate +3 phosphoglyceraldehyde $\stackrel{\text { Aldolase }}{\longrightarrow}$ fructose-1-6-diphosphate.
AMU-1998
Photosynthesis in higher plants
238143
To form one molecule of glyceraldehydes phosphate in Calvin cycle :
1 9ATP and $36 \mathrm{NADPH}$ are required
2 6ATP and $6 \mathrm{NADPH}$ are required
3 $3 \mathrm{ATP}$ and $3 \mathrm{NADPH}$ are required
4 9 ATP and 6 NADPH are required
Explanation:
D For fixation of six $\mathrm{CO}_{2}$ molecules during Calvin cycle of photosynthesis, 18 molecules of ATP and 12 molecules of $\mathrm{NADPH}_{2}$ are required. - One molecule of glyceraldehyde 3 phosphate is formed by fixation of $3 \mathrm{CO}_{2}$ molecules. For a 3 carbon molecule to be synthesized, 3 turns of the calvin cycle are required, with the entry of a molecule of $\mathrm{CO}_{2}$ at each turn. Each turn of Calvin cycle consumes 3 ATP \& 2 NADPH molecule So- $3 \times 3$ ATP $=9$ ATP $3 \times 2 \mathrm{NADPH}=6 \mathrm{NADPH}$
Haryana PMT-2005
Photosynthesis in higher plants
238144
3-phosphoglyceric acid (PGA) as the first $\mathrm{CO}_{2}$ fixation product in algal photosynthesis was discovered by
1 Joseph Priestley
2 Jan Ingenhousz
3 T.W. Engelmann
4 Julius von Sachs
5 Melvin Calvin
Explanation:
E PGA or 3-phosphoglyceric acid as first $\mathrm{CO}_{2}$ fixation product in algal photosynthesis was discovered by Melvin Calvin. He used radioactive ${ }^{14} \mathrm{C}$ in algal photosynthetic studies. Carbon atoms from $\mathrm{CO}_{2}$ are fixed and used to make 3carbon sugars in the calvin cycle. This cycle is powered up, and subject to, ATP and NADPH from the light response, which occur in the thylakoid film. The response of the calvin cycle happen in the stroma (the inner space of chloroplasts). The first stable product was 3-phosphoglyceric acid (PGA), hence it is named as $\mathrm{C}_{3}$ pathway.
Kerala PMT-2015
Photosynthesis in higher plants
238097
Calvin cycle occurs in :
1 cytoplasm
2 chloroplasts
3 mitochondria
4 glyoxysomes
Explanation:
B The conversion of carbon dioxide into glucose takes place through a light dependent reaction, also called the Calvin cycle. It is performed in the stroma of the chloroplast. Calvin cycle occurs in both $\mathrm{C}_{3}$ plant and $\mathrm{C}_{4}$ plant. In $\mathrm{C}_{3}$ plant it occurs in mesophyll cell but in $\mathrm{C}_{4}$ - plant takes place in bundle sheath cell.
238142
Two enzymes common to EMP pathway and $C_{3}$ cycle are
1 Aldolase and triose phosphate isomerase
2 Aldolase and enolase
3 Cytochrome oxidase and enolase
4 Phosphoglyceromutase and triose phosphate isomerase.
Explanation:
A Aldolase and triose phosphate isomerase both enzymes are common to EMP \& $\mathrm{C}_{3}$ cycle. EMP pathway in $\mathrm{C}_{3}$ cycle $3-$ phosphoglyceraldehyde $\underset{\text { isomerase }}{\stackrel{\text { Triose-phosphate }}{\rightleftharpoons}}$ dihydroxyaceto ne phosphate +3 phosphoglyceraldehyde $\stackrel{\text { Aldolase }}{\longrightarrow}$ fructose-1-6-diphosphate.
AMU-1998
Photosynthesis in higher plants
238143
To form one molecule of glyceraldehydes phosphate in Calvin cycle :
1 9ATP and $36 \mathrm{NADPH}$ are required
2 6ATP and $6 \mathrm{NADPH}$ are required
3 $3 \mathrm{ATP}$ and $3 \mathrm{NADPH}$ are required
4 9 ATP and 6 NADPH are required
Explanation:
D For fixation of six $\mathrm{CO}_{2}$ molecules during Calvin cycle of photosynthesis, 18 molecules of ATP and 12 molecules of $\mathrm{NADPH}_{2}$ are required. - One molecule of glyceraldehyde 3 phosphate is formed by fixation of $3 \mathrm{CO}_{2}$ molecules. For a 3 carbon molecule to be synthesized, 3 turns of the calvin cycle are required, with the entry of a molecule of $\mathrm{CO}_{2}$ at each turn. Each turn of Calvin cycle consumes 3 ATP \& 2 NADPH molecule So- $3 \times 3$ ATP $=9$ ATP $3 \times 2 \mathrm{NADPH}=6 \mathrm{NADPH}$
Haryana PMT-2005
Photosynthesis in higher plants
238144
3-phosphoglyceric acid (PGA) as the first $\mathrm{CO}_{2}$ fixation product in algal photosynthesis was discovered by
1 Joseph Priestley
2 Jan Ingenhousz
3 T.W. Engelmann
4 Julius von Sachs
5 Melvin Calvin
Explanation:
E PGA or 3-phosphoglyceric acid as first $\mathrm{CO}_{2}$ fixation product in algal photosynthesis was discovered by Melvin Calvin. He used radioactive ${ }^{14} \mathrm{C}$ in algal photosynthetic studies. Carbon atoms from $\mathrm{CO}_{2}$ are fixed and used to make 3carbon sugars in the calvin cycle. This cycle is powered up, and subject to, ATP and NADPH from the light response, which occur in the thylakoid film. The response of the calvin cycle happen in the stroma (the inner space of chloroplasts). The first stable product was 3-phosphoglyceric acid (PGA), hence it is named as $\mathrm{C}_{3}$ pathway.
Kerala PMT-2015
Photosynthesis in higher plants
238097
Calvin cycle occurs in :
1 cytoplasm
2 chloroplasts
3 mitochondria
4 glyoxysomes
Explanation:
B The conversion of carbon dioxide into glucose takes place through a light dependent reaction, also called the Calvin cycle. It is performed in the stroma of the chloroplast. Calvin cycle occurs in both $\mathrm{C}_{3}$ plant and $\mathrm{C}_{4}$ plant. In $\mathrm{C}_{3}$ plant it occurs in mesophyll cell but in $\mathrm{C}_{4}$ - plant takes place in bundle sheath cell.
