12th Grade > Biology
PHOTOSYNTHESIS IN HIGHER PLANTS MCQs
Total Questions : 59
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Answer: Option A. -> It is a characteristic of C4 plants
:
A
DickerandTio(1959) discovered photorespiration in tobacco plant. It is a light dependant process of oxygenation of ribulose biphosphate (RuBP). During this process, carbon dioxide is liberated and oxygen is consumed. C4 – plants avoid photorespiration by following Hatch-Slack pathway.
:
A
DickerandTio(1959) discovered photorespiration in tobacco plant. It is a light dependant process of oxygenation of ribulose biphosphate (RuBP). During this process, carbon dioxide is liberated and oxygen is consumed. C4 – plants avoid photorespiration by following Hatch-Slack pathway.
Answer: Option C. -> Bundle sheath of sugar cane leaf
:
C
In C4plants, agranal chloroplast is present in bundle sheath cells. E.g sugarcane leaf.
:
C
In C4plants, agranal chloroplast is present in bundle sheath cells. E.g sugarcane leaf.
Answer: Option D. -> glucose
:
D
Glucose is formed during the Calvin's cycle.
:
D
Glucose is formed during the Calvin's cycle.
Answer: Option D. -> Photolysis of water and phosphorylation of ADP to ATP
:
D
Photochemical reaction is also known as light reaction because it takes place in the presence of light in the grana portion of chloroplast. In this reaction, photolysis of water takes place, which generates oxygen simultaneously; photophosphorylation takes place which generates ATP and NADPH.
:
D
Photochemical reaction is also known as light reaction because it takes place in the presence of light in the grana portion of chloroplast. In this reaction, photolysis of water takes place, which generates oxygen simultaneously; photophosphorylation takes place which generates ATP and NADPH.
Answer: Option D. -> a and b but not c
:
D
Rubisco catalyzes the carbon fixation of ribulose 1,5-bisphosphate, which initiates the Calvin cycle. At low concentrations of CO2 it initiates photorespiration.
:
D
Rubisco catalyzes the carbon fixation of ribulose 1,5-bisphosphate, which initiates the Calvin cycle. At low concentrations of CO2 it initiates photorespiration.
Answer: Option B. -> water
:
B
This occurs during the photolysis of water.
:
B
This occurs during the photolysis of water.
Answer: Option C. -> Assertion is true but the reason is false.
:
C
In the case of cyclic phosphorylation, the electron, while passing between ferredoxin and plastoquinone and or over the cytochrome complex the electron loses sufficient energy to form ATP from ADP and inorganic phosphate However, is not donated to NADP+.
:
C
In the case of cyclic phosphorylation, the electron, while passing between ferredoxin and plastoquinone and or over the cytochrome complex the electron loses sufficient energy to form ATP from ADP and inorganic phosphate However, is not donated to NADP+.
Answer: Option B. -> red, violet & blue.
:
B
The efficiency of photosynthesis is very high in these lights.
:
B
The efficiency of photosynthesis is very high in these lights.
Answer: Option B. -> production of NADPH molecules
:
B
The movement of electrons along the pathway helps in the reduction of NADP to NADPH after photolyisis of water.
:
B
The movement of electrons along the pathway helps in the reduction of NADP to NADPH after photolyisis of water.
Answer: Option C. -> 3
:
C
Since this is a 3 Carbon compound and one carbon atom is fixed per turn of the Calvin cycle, the production of one molecule requires 3 turns.
:
C
Since this is a 3 Carbon compound and one carbon atom is fixed per turn of the Calvin cycle, the production of one molecule requires 3 turns.
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