Stroma in the chloroplasts of higher plants contains:

1. light-independent reaction enzymes

2. light-dependent reaction enzymes

3. ribosomes

4. chlorophyll

Subtopic:  Chloroplast Structure |
 70%
AIPMT - 2009
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NEET 2023 - Target Batch - Aryan Raj Singh
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In the chloroplast:
Statement I:  The membrane system is the site of enzymatic reactions leading to synthesis of sugar.
Statement II:  The stroma is responsible for trapping the light energy and also for the synthesis of ATP and NADPH.
 
1.  Both Statement I and Statement II are correct
2.  Both Statement I and Statement II are incorrect
3.  Statement I is correct but Statement II is incorrect
4.  Statement I is incorrect but Statement II is correct
Subtopic:  Chloroplast Structure |
 62%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Assertion(A): Synthesis of ATP and NADPH during photosynthesis is a part of the light reaction.
Reason(R): These reactions are light-driven.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Chloroplast Structure | Photosynthetic Pigments |
From NCERT
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Consider the two statements:
Statement I: Chloroplasts align perpendicular to the walls of mesophyll cells when intensity of light is minimum, to get more and more of light.
Statement II: Chloroplasts align parallel to the walls of mesophyll cells when intensity of light is minimum, to get more and more of light.
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect 

 
Subtopic:  Chloroplast Structure |
 60%
From NCERT
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Which alignment of chloroplasts in mesophyll cell will allow to get optimum quantity of the incident light?
1. Away from the wall
2. Across the wall
3. Along the wall
4. Perpendicular to the wall
Subtopic:  Chloroplast Structure |
 69%
From NCERT
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The fluid component of chloroplast associated with
1. Photochemical reactions
2. Light - dependent reactions
3. ATP - synthesizing reactions
4. Biosynthetic reactions
Subtopic:  Chloroplast Structure |
 52%
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Molecular formula of chlorophyll-b is
1. \(\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}\)
2. \(\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_5 \mathrm{~N}_4 \mathrm{Mg}\)
3. \(\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_5 \mathrm{~N}_4 \mathrm{Mg}\)
4.  \(\mathrm{C}_{54} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}\)
Subtopic:  Chloroplast Structure |
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Membranous system consisting of grana in the chloroplast:
I: is responsible for trapping the light energy.
II: is responsible for the synthesis of ATP and NADPH.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Chloroplast Structure |
 89%
From NCERT
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