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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 |
 89%
Level 1: 80%+
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 |
 82%
Level 1: 80%+
Hints
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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 |
 78%
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 |
 93%
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
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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
Match List-I with List-II
List-I List-II
A C4 Pathway I. \(2\text{H}_2\text{O}\rightarrow4\text{H}^++\text{O}_2=4\text{e}^-\)
B. Light reaction II. Ribulose 1,5-bisphosphate
C. Photorespiration III. 3-carbon molecule, phosphoenol pyruvate
D.  Calvin cycle   IV.  Phosphoglycolate
Choose the correct answer from the options given below:
1. A-II, B-I, C-IV, D-III
2. A-IV, B-II, C-I, D-III
3. A-III, B-I, C-IV, D-II
4. A-III, B-IV, C-II, D-I
Subtopic:  Photosystems | Dark Reaction : Calvin Cycle | C4 Cycle (Hatch & Slack Pathway) | Photorespiration |
 77%
Level 2: 60%+
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