Photosynthesis (Photosynthesis as a means of Autotrophic Nutrition; Site of Photosynthesis take place; Pigments involved in Photosynthesis (Elementary idea); Photochemical and Biosynthetic Phases of Photosynthesis; Cyclic and Non Cyclic and Photophosphorylation...) NEET Questions

Biology - Plant Physiology

Photosynthesis (Photosynthesis as a means of Autotrophic Nutrition; Site of Photosynthesis take place; Pigments involved in Photosynthesis (Elementary idea); Photochemical and Biosynthetic Phases of Photosynthesis; Cyclic and Non Cyclic and Photophosphorylation...) MCQ Questions


13.
In Engelmann's experiment, aerobic bacteria accumulated mainly in the regions of:
A.
Violet and orange light
B.
Green and yellow light
C.
Indigo and yellow light
D.
Blue and red light
😑 View Answer Rough Work Error
ANSWER :
D. Blue and red light
14.
Cornelius van Niel based his theory on studies of:
A.
Cyanobacteria only
B.
Green algae only
C.
Blue-green algae
D.
Purple and green sulphur bacteria
😑 View Answer Rough Work Error
ANSWER :
D. Purple and green sulphur bacteria
15.
According to van Niel's general equation '2H2A + CO2 → 2A + CH2O + H2O', in green plants H2A is:
A.
H2
B.
H2S
C.
CH4
D.
H2O
😑 View Answer Rough Work Error
ANSWER :
D. H2O
16.
Van Niel inferred that the O2 evolved by green plants comes from:
A.
Atmospheric oxygen
B.
Carbon dioxide
C.
Carbohydrate
D.
Water
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ANSWER :
D. Water
17.
The technique used to prove that O2 released in photosynthesis comes from water is:
A.
Centrifugation
B.
Radioisotope labelling
C.
Spectroscopy
D.
Chromatography
😑 View Answer Rough Work Error
ANSWER :
B. Radioisotope labelling
18.
The correct overall equation of photosynthesis is:
A.
CO2 + H2O → CH2O + O2
B.
12CO2 + 6H2O → C6H12O6 + 6O2
C.
6CO2 + 6H2O → C6H12O6 + 6O2
D.
6CO2 + 12H2O → C6H12O6 + 6H2O + 6O2
😑 View Answer Rough Work Error
ANSWER :
D. 6CO2 + 12H2O → C6H12O6 + 6H2O + 6O2