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Q. No.

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

Subtopic:  Historical View: Experiments |
 71%
Level 2: 60%+
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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 |
 90%
Level 1: 80%+
Hints

Where does photosynthesis takes place?

1. in green leaves
2. in green parts of plant
3. in leaves
4. in complete plant
Subtopic:  Photosystems |
 84%
Level 1: 80%+
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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 |
 81%
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 |
 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%+
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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 |
 65%
Level 2: 60%+
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Products of light reaction does not include-
a. ATP & NADPH
b. CO2
c. O2
d. Electrons

Subtopic:  Light Reactions :1 | Light Reactions |
 68%
Level 2: 60%+
Hints

Absorption spectrum of chlorophyll- ‘a’ is shown by-


1. I
2. II
3. III
4. Not shown.

Subtopic:  Photosynthetic Pigments |
 73%
Level 2: 60%+
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How many pigments are responsible for the color of a plant leaf?
a. 1
b. 2
c. 3
d. 4

Subtopic:  Pigments |
 78%
Level 2: 60%+
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