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Photosynthesis MCQs for Competitive Exams

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Photosynthesis MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

276 MCQs Page 27

Topic Notes: Photosynthesis

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Photosynthesis MCQs in Agriculture are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

Attempt the questions page by page, check the correct answers, read the explanations where available, and compare your weak areas with past papers and mock test performance. Consistent MCQ practice improves speed, confidence, and retention for objective exam sections.

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261
Which wavelength of light is most effectively absorbed during the process of photosynthesis?
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262
What chemical structural difference distinguishes chlorophyll a from chlorophyll b?
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263
Who first observed the phenomenon of photosynthetic enhancement using flashing light?
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264
What is the primary stable end product of the photosynthetic process in plants?
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265
What is the primary energy and carbon source for photolithotrophs?
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266
Which researchers are credited with the discovery of the C4 photosynthetic cycle?
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267
Which biological group is responsible for approximately 85-90% of global photosynthetic activity?
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268
What is the primary role of light energy during the process of photosynthesis?
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269
Which photosystem is specifically sensitive to longer wavelengths of light?
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270
What is the name of the process by which plants convert light energy into chemical energy?
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