337249
Assertion : Cyclic pathway of photosynthesis first appeared in some eubacterial species Reason : \({O_2}\) started accumulating in the atmosphere after the noncyclic pathway of photosynthesis evolved
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyclic pathway of photosynthesis was first discovered in eubacteria. It is supposed to be first evidence of production of ATP in the presence of light. During non-cyclic photophosphorylation, photolysis of water takes place. This releases oxygen that accumulates in the environment.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337250
Which one of the following event occurs both during cyclic and non-cyclic modes of photophosphorylation?
1 Involvement of both PS - I and PS - II.
2 Formation of ATP.
3 Release of \(\mathrm{O}_{2}\).
4 Formation of NADPH.
Explanation:
Formation of ATP occurs during cyclic and non - cyclic photophosphorylation. The net product of cyclic photophosphorylation is ATP, NADPH and \(\mathrm{O}_{2}\) and in non - cyclic photophosphorylation it is ATP only.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337251
Cooperation of the two photosystems of the chloroplast is required for
1 ATP synthesis.
2 Reduction of NADP \({ }^{+}\)
3 Enhancement of dark reaction.
4 Generation of proton motive force
Explanation:
The cooperation of two photosystems is required for the upward electron transport from water to \(\mathrm{NADP}^{+}\)of the two photosystems. Photosystem I is more directly associated with the reduction of \(\mathrm{NADP}^{+}\), whereas the photosystem II is more closely associated with the extraction of electrons from water.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337252
Statement A : The membrane or lamellae of the grana have only PS II Statement B : The stroma lamellae lack PS I as well as NADP reductase enzyme
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
While the membrane or lamellae of the grana have both PS I and PS II the stroma lamellae membranes lack PS II as well as NADP reductase enzyme.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337253
In cyclic photophosphorylation which one of the following is formed?
1 Oxygen
2 ATP
3 \(NAD{H_2}\) and \({O_2}\)
4 \(NADP{H_2}\), ATP and \({O_2}\)
Explanation:
Cyclic photophosphorylation or PS-I leads to the formation of ATP only. NADPH is not produced. Also, no splitting of water occurs hence \({O_2}\) is not released either.
337249
Assertion : Cyclic pathway of photosynthesis first appeared in some eubacterial species Reason : \({O_2}\) started accumulating in the atmosphere after the noncyclic pathway of photosynthesis evolved
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyclic pathway of photosynthesis was first discovered in eubacteria. It is supposed to be first evidence of production of ATP in the presence of light. During non-cyclic photophosphorylation, photolysis of water takes place. This releases oxygen that accumulates in the environment.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337250
Which one of the following event occurs both during cyclic and non-cyclic modes of photophosphorylation?
1 Involvement of both PS - I and PS - II.
2 Formation of ATP.
3 Release of \(\mathrm{O}_{2}\).
4 Formation of NADPH.
Explanation:
Formation of ATP occurs during cyclic and non - cyclic photophosphorylation. The net product of cyclic photophosphorylation is ATP, NADPH and \(\mathrm{O}_{2}\) and in non - cyclic photophosphorylation it is ATP only.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337251
Cooperation of the two photosystems of the chloroplast is required for
1 ATP synthesis.
2 Reduction of NADP \({ }^{+}\)
3 Enhancement of dark reaction.
4 Generation of proton motive force
Explanation:
The cooperation of two photosystems is required for the upward electron transport from water to \(\mathrm{NADP}^{+}\)of the two photosystems. Photosystem I is more directly associated with the reduction of \(\mathrm{NADP}^{+}\), whereas the photosystem II is more closely associated with the extraction of electrons from water.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337252
Statement A : The membrane or lamellae of the grana have only PS II Statement B : The stroma lamellae lack PS I as well as NADP reductase enzyme
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
While the membrane or lamellae of the grana have both PS I and PS II the stroma lamellae membranes lack PS II as well as NADP reductase enzyme.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337253
In cyclic photophosphorylation which one of the following is formed?
1 Oxygen
2 ATP
3 \(NAD{H_2}\) and \({O_2}\)
4 \(NADP{H_2}\), ATP and \({O_2}\)
Explanation:
Cyclic photophosphorylation or PS-I leads to the formation of ATP only. NADPH is not produced. Also, no splitting of water occurs hence \({O_2}\) is not released either.
337249
Assertion : Cyclic pathway of photosynthesis first appeared in some eubacterial species Reason : \({O_2}\) started accumulating in the atmosphere after the noncyclic pathway of photosynthesis evolved
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyclic pathway of photosynthesis was first discovered in eubacteria. It is supposed to be first evidence of production of ATP in the presence of light. During non-cyclic photophosphorylation, photolysis of water takes place. This releases oxygen that accumulates in the environment.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337250
Which one of the following event occurs both during cyclic and non-cyclic modes of photophosphorylation?
1 Involvement of both PS - I and PS - II.
2 Formation of ATP.
3 Release of \(\mathrm{O}_{2}\).
4 Formation of NADPH.
Explanation:
Formation of ATP occurs during cyclic and non - cyclic photophosphorylation. The net product of cyclic photophosphorylation is ATP, NADPH and \(\mathrm{O}_{2}\) and in non - cyclic photophosphorylation it is ATP only.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337251
Cooperation of the two photosystems of the chloroplast is required for
1 ATP synthesis.
2 Reduction of NADP \({ }^{+}\)
3 Enhancement of dark reaction.
4 Generation of proton motive force
Explanation:
The cooperation of two photosystems is required for the upward electron transport from water to \(\mathrm{NADP}^{+}\)of the two photosystems. Photosystem I is more directly associated with the reduction of \(\mathrm{NADP}^{+}\), whereas the photosystem II is more closely associated with the extraction of electrons from water.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337252
Statement A : The membrane or lamellae of the grana have only PS II Statement B : The stroma lamellae lack PS I as well as NADP reductase enzyme
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
While the membrane or lamellae of the grana have both PS I and PS II the stroma lamellae membranes lack PS II as well as NADP reductase enzyme.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337253
In cyclic photophosphorylation which one of the following is formed?
1 Oxygen
2 ATP
3 \(NAD{H_2}\) and \({O_2}\)
4 \(NADP{H_2}\), ATP and \({O_2}\)
Explanation:
Cyclic photophosphorylation or PS-I leads to the formation of ATP only. NADPH is not produced. Also, no splitting of water occurs hence \({O_2}\) is not released either.
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BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337249
Assertion : Cyclic pathway of photosynthesis first appeared in some eubacterial species Reason : \({O_2}\) started accumulating in the atmosphere after the noncyclic pathway of photosynthesis evolved
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyclic pathway of photosynthesis was first discovered in eubacteria. It is supposed to be first evidence of production of ATP in the presence of light. During non-cyclic photophosphorylation, photolysis of water takes place. This releases oxygen that accumulates in the environment.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337250
Which one of the following event occurs both during cyclic and non-cyclic modes of photophosphorylation?
1 Involvement of both PS - I and PS - II.
2 Formation of ATP.
3 Release of \(\mathrm{O}_{2}\).
4 Formation of NADPH.
Explanation:
Formation of ATP occurs during cyclic and non - cyclic photophosphorylation. The net product of cyclic photophosphorylation is ATP, NADPH and \(\mathrm{O}_{2}\) and in non - cyclic photophosphorylation it is ATP only.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337251
Cooperation of the two photosystems of the chloroplast is required for
1 ATP synthesis.
2 Reduction of NADP \({ }^{+}\)
3 Enhancement of dark reaction.
4 Generation of proton motive force
Explanation:
The cooperation of two photosystems is required for the upward electron transport from water to \(\mathrm{NADP}^{+}\)of the two photosystems. Photosystem I is more directly associated with the reduction of \(\mathrm{NADP}^{+}\), whereas the photosystem II is more closely associated with the extraction of electrons from water.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337252
Statement A : The membrane or lamellae of the grana have only PS II Statement B : The stroma lamellae lack PS I as well as NADP reductase enzyme
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
While the membrane or lamellae of the grana have both PS I and PS II the stroma lamellae membranes lack PS II as well as NADP reductase enzyme.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337253
In cyclic photophosphorylation which one of the following is formed?
1 Oxygen
2 ATP
3 \(NAD{H_2}\) and \({O_2}\)
4 \(NADP{H_2}\), ATP and \({O_2}\)
Explanation:
Cyclic photophosphorylation or PS-I leads to the formation of ATP only. NADPH is not produced. Also, no splitting of water occurs hence \({O_2}\) is not released either.
337249
Assertion : Cyclic pathway of photosynthesis first appeared in some eubacterial species Reason : \({O_2}\) started accumulating in the atmosphere after the noncyclic pathway of photosynthesis evolved
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Cyclic pathway of photosynthesis was first discovered in eubacteria. It is supposed to be first evidence of production of ATP in the presence of light. During non-cyclic photophosphorylation, photolysis of water takes place. This releases oxygen that accumulates in the environment.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337250
Which one of the following event occurs both during cyclic and non-cyclic modes of photophosphorylation?
1 Involvement of both PS - I and PS - II.
2 Formation of ATP.
3 Release of \(\mathrm{O}_{2}\).
4 Formation of NADPH.
Explanation:
Formation of ATP occurs during cyclic and non - cyclic photophosphorylation. The net product of cyclic photophosphorylation is ATP, NADPH and \(\mathrm{O}_{2}\) and in non - cyclic photophosphorylation it is ATP only.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337251
Cooperation of the two photosystems of the chloroplast is required for
1 ATP synthesis.
2 Reduction of NADP \({ }^{+}\)
3 Enhancement of dark reaction.
4 Generation of proton motive force
Explanation:
The cooperation of two photosystems is required for the upward electron transport from water to \(\mathrm{NADP}^{+}\)of the two photosystems. Photosystem I is more directly associated with the reduction of \(\mathrm{NADP}^{+}\), whereas the photosystem II is more closely associated with the extraction of electrons from water.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337252
Statement A : The membrane or lamellae of the grana have only PS II Statement B : The stroma lamellae lack PS I as well as NADP reductase enzyme
1 Statement-A is correct but Statement-B is incorrect
2 Statement-A is incorrect but Statement-B is correct
3 Both the statements are correct
4 Both the statements are incorrect
Explanation:
While the membrane or lamellae of the grana have both PS I and PS II the stroma lamellae membranes lack PS II as well as NADP reductase enzyme.
BIOXI13: PHOTOSYNTHESIS IN HIGHER PLANTS
337253
In cyclic photophosphorylation which one of the following is formed?
1 Oxygen
2 ATP
3 \(NAD{H_2}\) and \({O_2}\)
4 \(NADP{H_2}\), ATP and \({O_2}\)
Explanation:
Cyclic photophosphorylation or PS-I leads to the formation of ATP only. NADPH is not produced. Also, no splitting of water occurs hence \({O_2}\) is not released either.