Q. No.The C4 plants differ from C3 plants with reference to the:
1.
substrate that accepts CO2 in carbon assimilation
2.
type of end product
3.
type of pigment involved in photosynthesis
4.
end product that will be formed
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 |
Photosynthesis is a-
a. Biochemical process
b. Physical process
c. Chemical process
d. Physico-chemical process
Which of the following statements does not justify the importance of photosynthesis?
| 1. | it is the primary source of all food on earth. |
| 2. | it is responsible for the release of oxygen into the atmosphere. |
| 3. | it is responsible for the water balance on earth. |
| 4. | use of energy from sunlight by plants doing photosynthesis is the basis of life on earth. |
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
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;
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
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. |
Where does photosynthesis takes place?
a. in green leaves
b. in green parts of plant
c. in leaves
d. in complete plant
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