Question

Explain photosynthetic apparatus.

19 Jan 2026
Answer :
Word Count : 254
The photosynthetic apparatus in plants consists of specialized structures and pigments that capture light energy and convert it into chemical energy through photosynthesis. The primary components are the chloroplasts, which house the thylakoid membranes, grana, and stroma. Thylakoid membranes contain pigment-protein complexes, including chlorophyll a, chlorophyll b, carotenoids, and phycobilins in some plants, which absorb light of specific wavelengths. Chlorophyll a is the primary pigment responsible for the reaction center, while accessory pigments broaden the spectrum of light absorption. Within the thylakoid membrane, the photosynthetic apparatus is organized into two major photosystems: Photosystem I (PSI) and Photosystem II (PSII). PSII absorbs light
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