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Photosynthesis_ Light and Dark Reactions MCQs for Competitive Exams

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Photosynthesis_ Light and Dark Reactions MCQs for Competitive Exams

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Topic Notes: Photosynthesis_ Light and Dark Reactions

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Photosynthesis_ Light and Dark Reactions MCQs in Biology 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.

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41
Which wavelengths of sunlight are most effectively absorbed and utilized by chlorophyll during the process of photosynthesis?
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42
During photosynthesis, what form of energy is solar radiation converted into by green plants?
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43
Which scientist proposed the theory that carbon dioxide is reduced to formaldehyde in plants, which then undergoes condensation to form sugars?
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44
Which molecule serves as the primary source of oxygen released during the process of photosynthesis?
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45
What is the name of the waxy, olive-green substance formed when chlorophyll solutions are treated with dilute acids?
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46
Match the historical figures in List-I with their contributions to plant physiology in List-II.
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47
Which gas exchange process occurs during photosynthesis in green plants?
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48
What is the term for the observed decline in quantum yield of photosynthesis at wavelengths greater than 680 nm, as identified by Robert Emerson?
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49
Which metallic element serves as the central atom in the chlorophyll molecule?
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50
Which specific wavelengths of the visible light spectrum are most effectively absorbed by chlorophyll pigments during photosynthesis?
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