QBManager

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 \& $C_{3}$ cycle. EMP pathway

in $C_{3}$ cycle
$3 -$
phosphoglyceraldehyde $\underset{isomerase}{\overset{Triose-phosphate}{⇌}}$ dihydroxyaceto ne phosphate +3 phosphoglyceraldehyde $\overset{Aldolase}{⟶}$ 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 NADPH

are required

2 6ATP and

6 NADPH

are required

3

3 ATP

and

3 NADPH

are required

4 9 ATP and 6 NADPH are required

Explanation:

D For fixation of six ${CO}_{2}$ molecules during Calvin cycle of photosynthesis, 18 molecules of ATP and 12 molecules of ${NADPH}_{2}$ are required.
- One molecule of glyceraldehyde 3 phosphate is formed by fixation of $3 {CO}_{2}$ molecules.
For a 3 carbon molecule to be synthesized, 3 turns of the calvin cycle are required, with the entry of a molecule of ${CO}_{2}$ at each turn.
Each turn of Calvin cycle consumes 3 ATP \& 2 NADPH molecule So- $3 \times 3$ ATP $= 9$ ATP
$3 \times 2 NADPH = 6 NADPH$

Haryana PMT-2005

Photosynthesis in higher plants

238144 3-phosphoglyceric acid (PGA) as the first ${CO}_{2}$ 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 ${CO}_{2}$ fixation product in algal photosynthesis was discovered by Melvin Calvin.
He used radioactive $^{14} C$ in algal photosynthetic studies. Carbon atoms from ${CO}_{2}$ 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 $C_{3}$ 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 $C_{3}$ plant and $C_{4}$ plant. In $C_{3}$ plant it occurs in mesophyll cell but in $C_{4}$ - plant takes place in bundle sheath cell.

Tripura JEE-2017 / BCECE-2003

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 \& $C_{3}$ cycle. EMP pathway

in $C_{3}$ cycle
$3 -$
phosphoglyceraldehyde $\underset{isomerase}{\overset{Triose-phosphate}{⇌}}$ dihydroxyaceto ne phosphate +3 phosphoglyceraldehyde $\overset{Aldolase}{⟶}$ 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 NADPH

are required

2 6ATP and

6 NADPH

are required

3

3 ATP

and

3 NADPH

are required

4 9 ATP and 6 NADPH are required

Explanation:

D For fixation of six ${CO}_{2}$ molecules during Calvin cycle of photosynthesis, 18 molecules of ATP and 12 molecules of ${NADPH}_{2}$ are required.
- One molecule of glyceraldehyde 3 phosphate is formed by fixation of $3 {CO}_{2}$ molecules.
For a 3 carbon molecule to be synthesized, 3 turns of the calvin cycle are required, with the entry of a molecule of ${CO}_{2}$ at each turn.
Each turn of Calvin cycle consumes 3 ATP \& 2 NADPH molecule So- $3 \times 3$ ATP $= 9$ ATP
$3 \times 2 NADPH = 6 NADPH$

Haryana PMT-2005

Photosynthesis in higher plants

238144 3-phosphoglyceric acid (PGA) as the first ${CO}_{2}$ 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 ${CO}_{2}$ fixation product in algal photosynthesis was discovered by Melvin Calvin.
He used radioactive $^{14} C$ in algal photosynthetic studies. Carbon atoms from ${CO}_{2}$ 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 $C_{3}$ 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 $C_{3}$ plant and $C_{4}$ plant. In $C_{3}$ plant it occurs in mesophyll cell but in $C_{4}$ - plant takes place in bundle sheath cell.

Tripura JEE-2017 / BCECE-2003

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 \& $C_{3}$ cycle. EMP pathway

in $C_{3}$ cycle
$3 -$
phosphoglyceraldehyde $\underset{isomerase}{\overset{Triose-phosphate}{⇌}}$ dihydroxyaceto ne phosphate +3 phosphoglyceraldehyde $\overset{Aldolase}{⟶}$ 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 NADPH

are required

2 6ATP and

6 NADPH

are required

3

3 ATP

and

3 NADPH

are required

4 9 ATP and 6 NADPH are required

Explanation:

D For fixation of six ${CO}_{2}$ molecules during Calvin cycle of photosynthesis, 18 molecules of ATP and 12 molecules of ${NADPH}_{2}$ are required.
- One molecule of glyceraldehyde 3 phosphate is formed by fixation of $3 {CO}_{2}$ molecules.
For a 3 carbon molecule to be synthesized, 3 turns of the calvin cycle are required, with the entry of a molecule of ${CO}_{2}$ at each turn.
Each turn of Calvin cycle consumes 3 ATP \& 2 NADPH molecule So- $3 \times 3$ ATP $= 9$ ATP
$3 \times 2 NADPH = 6 NADPH$

Haryana PMT-2005

Photosynthesis in higher plants

238144 3-phosphoglyceric acid (PGA) as the first ${CO}_{2}$ 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 ${CO}_{2}$ fixation product in algal photosynthesis was discovered by Melvin Calvin.
He used radioactive $^{14} C$ in algal photosynthetic studies. Carbon atoms from ${CO}_{2}$ 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 $C_{3}$ 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 $C_{3}$ plant and $C_{4}$ plant. In $C_{3}$ plant it occurs in mesophyll cell but in $C_{4}$ - plant takes place in bundle sheath cell.

Tripura JEE-2017 / BCECE-2003

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 \& $C_{3}$ cycle. EMP pathway

in $C_{3}$ cycle
$3 -$
phosphoglyceraldehyde $\underset{isomerase}{\overset{Triose-phosphate}{⇌}}$ dihydroxyaceto ne phosphate +3 phosphoglyceraldehyde $\overset{Aldolase}{⟶}$ 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 NADPH

are required

2 6ATP and

6 NADPH

are required

3

3 ATP

and

3 NADPH

are required

4 9 ATP and 6 NADPH are required

Explanation:

D For fixation of six ${CO}_{2}$ molecules during Calvin cycle of photosynthesis, 18 molecules of ATP and 12 molecules of ${NADPH}_{2}$ are required.
- One molecule of glyceraldehyde 3 phosphate is formed by fixation of $3 {CO}_{2}$ molecules.
For a 3 carbon molecule to be synthesized, 3 turns of the calvin cycle are required, with the entry of a molecule of ${CO}_{2}$ at each turn.
Each turn of Calvin cycle consumes 3 ATP \& 2 NADPH molecule So- $3 \times 3$ ATP $= 9$ ATP
$3 \times 2 NADPH = 6 NADPH$

Haryana PMT-2005

Photosynthesis in higher plants

238144 3-phosphoglyceric acid (PGA) as the first ${CO}_{2}$ 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 ${CO}_{2}$ fixation product in algal photosynthesis was discovered by Melvin Calvin.
He used radioactive $^{14} C$ in algal photosynthetic studies. Carbon atoms from ${CO}_{2}$ 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 $C_{3}$ 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 $C_{3}$ plant and $C_{4}$ plant. In $C_{3}$ plant it occurs in mesophyll cell but in $C_{4}$ - plant takes place in bundle sheath cell.

Tripura JEE-2017 / BCECE-2003