An organism that consumes organic matter are autotrophs. Autotrophs produce organic compounds from inorganic molecules using either photosynthesis or chemosynthesis (chemical reactions using inorganic molecules). Heterotrophs cannot fix carbon and only use organic carbon to grow. Heterotrophs cannot make their own organic compounds like plants do. The first stage of photosynthesis, where light energy from the Sun is captured, and with , water (H2O), changed into chemical energy in the forms of ATP and NADPH. The light-dependent reactions take place in the thylakoid membrane of the chloroplast in plants.Thylakoid is a membrane-bound compartment inside of the chloroplast where the light-dependent reactions of photosynthesis occur.Human cell differs from plant cell. Plant cell contain plastids,vacuoles(large) and a definite cell wall.
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