The factors that can be limiting for the light independent reactions of photosynthesis are:
1. CO2, temperature, and light
2. CO2, light, and water
3. water, temperature, and CO2
4. oxygen, water, and temperature

Subtopic:  Factors Affecting Photosynthesis |
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The absorption spectrum in the given diagram will be of:
  

1. Chlorophyll a 2. Chlorophyll b
3. Carotenoids 4.  Retinol
Subtopic:  Pigments |
 91%
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The reactions of the Calvin Cycle occur in:

1. stroma of the chloroplast
2. thylakoid membrane
3. lumen of the thylakoids
4. space between outer and inner membrane of the chloroplast
Subtopic:  Chemiosmotic hypothesis |
 72%
From NCERT
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The wavelengths of light most useful in photosynthesis are:

1. green and orange 2. red and blue
3. infrared and yellow 4. red and green
Subtopic:  Pigments |
 93%
From NCERT
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The correct chronological sequence of protein complexes in the thylakoid membrane involved in light reactions is:

1. Photosystem II (PS II), Cytochrome b6f complex, Photosystem I (PS I), and ATP synthase.
2. Photosystem I (PS I), Cytochrome b6f complex, Photosystem II (PS II), and ATP synthase.
3. Photosystem II (PS II), Photosystem I (PS I), Cytochrome b6f complex, and ATP synthase.
4. Photosystem I (PS I), Photosystem II (PS II), Cytochrome b6f complex, and ATP synthase.
Subtopic:  Light Reactions |
 82%
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The enzymes for synthesis of organic molecules, in autotrophic bacteria, are located:
1. on chloroplast membranes
2. in the cytosol
3. in the nucleoid region
4. along the inner surface of the plasma membrane

Subtopic:  Dark Reaction: Biosynthetic Phase |
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Oxygen, during oxygenic photosynthesis, is produced during:
1. cyclic photophosphorylation
2. the light-dependent reactions involving photosystems I and II
3. Calvin cycle
4. the Krebs cycle

Subtopic:  Light Reaction: Electron Transport |
 85%
From NCERT
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The ions comprising the Oxygen Evolving Complex associated with PS II are:

1. Manganese and Magnesium 2. Manganese and Calcium
3. Calcium and Iron 4. Magnesium and Iron
Subtopic:  Light Reaction: Electron Transport |
 55%
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In oxygenic photosynthesis, the release of oxygen is a byproduct of:
1. chemiosmosis
2. reducing NADP+ by FNR
3. splitting the water molecules
4. cyclic photophosphorylation

Subtopic:  Light Reaction: Electron Transport |
 90%
From NCERT
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The greatest problem with photorespiration is faced by:

1. C4 plants 2. C3 plants
3. CAM plants 4. purple sulfur bacteria
Subtopic:  Photorespiration |
 84%
From NCERT
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