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CSS - PMS - CCE - PCS - General Science Practice

Photosynthesis MCQs

Practice important Photosynthesis MCQs with answers, explanations, theory links, and exam-focused preparation.

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Photosynthesis

Photosynthesis MCQs With Answers

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CSS - PMS - CCE - PCS - General Science Photosynthesis
Photosynthesis mainly occurs in:
A. Mitochondria
B. Chloroplasts
C. Nucleus
D. Ribosomes
Read Theory
Correct Answer: B
B: Correct because chloroplasts contain chlorophyll and carry out photosynthesis. A: Wrong because mitochondria release energy by respiration. C: Wrong because nucleus controls cell activities. D: Wrong because ribosomes synthesize proteins.
CSS - PMS - CCE - PCS - General Science Photosynthesis
Photosynthesis mainly uses carbon dioxide, water and light to produce:
A. Glucose and oxygen
B. Nitrogen and salt
C. Iron and copper
D. Helium and hydrogen
Read Theory
Correct Answer: A
A: Correct because plants make glucose and release oxygen during photosynthesis. B: Wrong because nitrogen and salt are not the main products. C: Wrong because metals are not produced by photosynthesis. D: Wrong because these gases are not photosynthesis products.
CSS - PMS - CCE - PCS - General Science Photosynthesis
Most of the desert plants bloom during night time because:-
A. Their blooming is controlled by low temperature
B. The desert insects are active during night time
C. The desert insects eact away flowers during daytime
D. They are sensitive to the phases of moon
Read Theory
Correct Answer: A
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