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Cornelius van Niel, who, based on his studies demonstrated that photosynthesis is essentially a light-dependent reaction performed his experiments on-
1. Cladophora
2. purple and green bacteria
3. green algae
4. Non sulphur bacteria
1. Cladophora
2. purple and green bacteria
3. green algae
4. Non sulphur bacteria
Subtopic: Historical View: Experiments |
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Which of the following statement is incorrect?
| 1. | Oxygen is released from water. |
| 2. | Photosynthesis is a single step reaction. |
| 3. | Action spectrum of photosynthesis resembles roughly the absorption spectra of chlorophyll a and b. |
| 4. | In plants glucose is stored as starch. |
Subtopic: Photosystems |
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Level 1: 80%+
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Where does photosynthesis takes place?
| 1. | in green leaves |
| 2. | in green parts of plant |
| 3. | in leaves |
| 4. | in complete plant |
Subtopic: Photosystems |
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The _____________ in the leaves have a large number of_________, which align themselves along the walls of the ____________, such that they get the __________quantity of the incident light.
| 1. | chloroplasts, chlorophyll, chloroplasts, optimum. |
| 2. | mesophyll cells, chlorophyll, mesophyll cells, optimum. |
| 3. | mesophyll cells, chloroplasts, mesophyll cells, optimum. |
| 4. | mesophyll cells, chloroplasts, mesophyll cells, minimum. |
Subtopic: Photosystems |
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Identify i, ii, iii and iv labellings in the following diagram :
| i | ii | iii | iv | |
| 1. | stroma lamella | thylakoid | stroma | genetic material |
| 2. | stroma lamella | grana | stroma | starch granule |
| 3. | grana | lamella | stroma | starch granule |
| 4. | stroma lamella | grana | cytoplasm | starch granule |
Subtopic: Photosystems |
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| Column I | Column II |
| i. grana | a. dark reaction |
| ii. Stroma | b. light reaction |
| c. synthesis of ATP and NADPH+H+ | |
| d. synthesis of sugar |
| 1. | i-b, c; ii-a, d. |
| 2. | i-a, d; ii-b, c. |
| 3. | i-b, d; ii-a,c. |
| 4. | i-b; ii-a, c, d. |
Subtopic: Photosystems |
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How many of the following statements are correct?
| i. | Products of dark reaction are substrates of light reaction. |
| ii. | Products of light reaction are substrates of dark reaction. |
| iii. | In the stroma, enzymatic reactions incorporate CO2 into the plant leading to the synthesis of sugar. |
| iv. | Dark reactions are directly light-driven. |
| v. | Chloroplast is a single membranous organelle. |
1. 2
2. 3
3. 4
4. 1
Subtopic: Dark Reaction: Biosynthetic Phase | Light Reactions :1 | Light Reactions |
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Subtopic: Light Reactions :1 | Light Reactions |
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Subtopic: Photosynthetic Pigments |
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Subtopic: Pigments |
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