Match the Columns.

Column I

(Scientists)

Column II

(Discoveries)

A. Stephen Hales

1. Importance of light and chlorophyll

B. Ingen Housz

2. Presence of chlorophyll in plants.

C. Von Mohl

3. Product of photosynthesis is starch.

D. Sach

4. Air and light control plant growth.

Code 

 

A     

B    

C    

D

(1)  

4

1

2

3

(2)

3

2

1

4

(3)

2

3

4

1

(4)

4

3

2

1

Subtopic:  Historical View: Experiments |
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Photosynthesis is a-
a. Biochemical process
b. Physical process
c. Chemical process
d. Physico-chemical process

Subtopic:  Introduction |
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Which of the following statements do not justify the importance of photosynthesis?
a. it is the primary source of all food on earth.
b. it is responsible for the release of oxygen into the atmosphere.
c. it is responsible for the water balance on earth.
d. use of energy from sunlight by plants doing photosynthesis is the basis of life on earth.

Subtopic:  Introduction |
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Which of the following is not required in photosynthesis?
a. chlorophyll
b. Light
c. CO2
d. O2

Subtopic:  Introduction |
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The half-leaf experiment, where a part of the leaf is enclosed in a test tube containing some KOH soaked cotton was performed, which showed that _________ was required for photosynthesis?
a. Light
b. Chlorophyll
c. CO2
d. O2

Subtopic:  Historical View: Experiments |
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   Column – I                                                    Column - II

i.Jan Ingenhousz                                            a. discovery of O2

ii. Joseph Priestley                                          b. Plants restore to the air whatever breathing

                                                                        animals and burning candles remove.

iii. T.W Englemann                                          c. showed that only the green part of the plants could release oxygen.

iv. Julius von scahs                                         d. discovery of production of glucose in plants

                                                                    e. first action spectrum of photosynthesis.

                                                                    f. Using a prism he split light into its spectral components and then 

                                                                       illuminated Cladophora, placed in a suspension of aerobic bacteria.

Which of the following shows the correct match?
a. i-c; ii-b; iii-a, e, f; iv-d
b. i-a, b; ii-c; iii-d; iv- e, f.
c. i-a; ii- b; iii- c, e; iv-f.
d. i-c, ii-a, b; iii-e, f; iv-d;

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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-
a. Cladophora
b. purple and green bacteria
c. green algae
d. 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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Where does photosynthesis takes place?
a. in green leaves
b. in green parts of plant
c. in leaves
d. 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.
a. chloroplasts, chlorophyll, chloroplasts, optimum
b. mesophyll cells, chlorophyll, mesophyll cells, optimum.
c. mesophyll cells, chloroplasts, mesophyll cells, optimum.
d. mesophyll cells, chloroplasts, mesophyll cells, minimum.

Subtopic:  Photosystems |
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