All MCQs for Competitive Exams
MCQSAll MCQs for Competitive Exams
Practice with answers, explanations, and exam-focused revision notes.
552 MCQs
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Topic Notes: Competitive Exams
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Practice MCQs for CSS, PMS, FPSC, PPSC, NTS and Pakistan competitive exam preparation. Use topic-wise questions, answers, and explanations to revise quickly and improve exam accuracy.
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41
According to the theory proposed by Palladin, what is the immediate precursor to chlorophyll?
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42
How does the concentration of end products affect the rate of photosynthesis?
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43
What is the term for the graphical representation of the efficiency of a physiological process, such as photosynthesis, as a function of light wavelength?
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44
Which of the following biological or geological processes does not contribute to an increase in atmospheric carbon dioxide?
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45
During non-cyclic photophosphorylation, which molecule serves as the primary electron acceptor immediately following the photoexcitation of the P680 reaction center?
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46
Which gaseous byproduct is released into the atmosphere as a result of the light-dependent reactions of photosynthesis?
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47
Which of the following best describes the energy transformation occurring during the process of photosynthesis?
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48
In the structure of the chlorophyll molecule, how are the four pyrrole rings of the porphyrin head interconnected?
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49
What is the term for the minimum number of pigment molecules required to cooperate in a photochemical reaction to evolve one oxygen molecule or reduce one carbon dioxide molecule?
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50
What is the approximate wavelength range of the visible light spectrum?
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