A respiratory process in many higher plants by which they take up oxygen in the light and give out some CO2, contrary to the general pattern of photosynthesis.
A cell-like organelle present in algae and plants that contain chlorophyll (and usually other pigments) and carries out photosynthesis.
a trans membrane protein complex in a photo system that receives energy from the antenna complex exciting an electron that is passed to an acceptor molecule.
An organized complex of chlorophyll, other pigments and proteins that trap light energy as excited electrons. Plants have 2 linked photo systems in the thylakoid membrane of chloroplast. Photosystem 2 pass an excited electron through an electron transport chain to photosystem 1 to replace an excited electron passed to NADPH. The electron lost from photsystem 2 is replaced by oxidation of H2O.
Any of a group of accessory pigments found in plants in addiction to absorbing light energy; these pigments act as antioxidants, scavenging potentially damaging free radicals.