- 1(current)
Q. No.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 |
90%
Level 1: 80%+
Hints
Which of the following is present in membrane of stroma lamellae?
1. NADP reductase
2. PS-I
3. PS-II
4. water splitting complex.
Subtopic: Chloroplast Structure | Photosystems |
84%
Level 1: 80%+
Hints
The correct equation, representing the overall process of photosynthesis is –
| 1. | 6CO2 + 6H2O → C6H12O6 + 6H2O + 6O2 |
| 2. | 6CO2 + 6H2O → C6H12O6 + 6O2 |
| 3. | 6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O |
| 4. | 6CO2 + 12H2O → C6H12O6 + 6O2 + H2O |
Subtopic: Photosystems |
80%
Level 1: 80%+
Hints
| 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 |
78%
Level 2: 60%+
Hints
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 |
82%
Level 1: 80%+
Hints
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 |
81%
Level 1: 80%+
Hints
All the following regarding the role of xanthophylls and carotenoids in photosynthesis are correct except:
| 1. | They act as accessory pigments |
| 2. | Their peak absorption is in blue and red regions of VIBGYOR |
| 3. | They enable a wider range of wavelength of incoming light to be utilized for photosynthesis |
| 4. | They protect chlorophyll a form of photo-oxidation. |
Subtopic: Photosystems |
66%
Level 2: 60%+
Hints
Dark reaction in photosynthesis is called so because
| 1. | It can occur in dark also |
| 2. | It does not depend directly on light energy |
| 3. | It cannot occur during day light |
| 4. | It occurs more rapidly at night |
Subtopic: Photosystems |
94%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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