Chloroplast, Plant Pigment & Photosynthesis Reaction PDF

CHLOROPLASTS, PIGMENTS, AND PHOTOSYNTHESIS BY: ANN LORIEN T.ETCHINEQUE, LPT  structures of chloroplast outer membrane -freely permeable to small molecules inner...

CHLOROPLASTS, PIGMENTS, AND PHOTOSYNTHESIS BY: ANN LORIEN T.ETCHINEQUE, LPT  structures of chloroplast outer membrane -freely permeable to small molecules inner membrane stroma -highly selective; contains transporters -contains enzymes, starch granules, Thylakoids chloroplast DNA and ribosomes. -membrane-bound flattened disk -where the Calvin -capture light energy from the sun Cycle (or dark -where the light reactions of reactions) takes grana photosynthesis occur. place. -stacks of thylakoids INTERGRANAL LAMELLAE -stacking increases the surface area for light absorption (singular: granum) ( plural: grana) -connects granum -where the initial stages of photosynthesis occur, together structures of chloroplast -  plant pigments 01 Chlorophyll BIOCHROMES ® a green pigment found in plants Give colors to flowers, leaves and fruits ® absorbs light energy in the blue and red parts Plays a key role in photosynthesis of the spectrum, and this energy is used to drive Controls growth and development the reactions of photosynthesis. 1.Chlorophyll 2.Anthocyanins 3.Carotenoids 4.Betalains  types of chlorophyll CHLOROPHYLL A CHLOROPHYLL b - the most common type of chlorophyll. -found in plants and some algae, cyanobacteria. - found in all photosynthetic organisms, including -has a slightly different structure than chlorophyll a, and plants, algae, and cyanobacteria. it absorbs light in a slightly different range of -responsible for the green color of plants. wavelengths.  types of chlorophyll CHLOROPHYLL C CHLOROPHYLL D found in brown algae, diatoms, and is found in red algae. dinoflagellates BROWN algae diatoms RED algae dinoflagellates  types of chlorophyll CHLOROPHYLL E BACTERIACHLOROPHYLL is found in some golden algae. is found in certain bacteria. golden algae  Biochromes 02 Anthocyanins 03 CAROTENOIDS -responsible for the red, blue and purple color of - responsible for the bright yellow, orange, many fruits, vegetables and flowers. and red colors of many fruits, vegetables, and -not responsible for photosynthesis. flowers -found in the vacuoles of plant cells -also responsible for photosynthesis Biochromes 04 BETALAINS - group of water-soluble pigments found in plants. -responsible for a variety of colors, including red, purple, yellow and orange. - found in the vacuoles of plant -are not responsible for photosynthesis. PHOTOSYNTHESIS PHOTOSYNTHESIS PHOTOSYNTHESIS Light Energy is used to drive a series of chemical reactions BALANCED NET EQUATION: PHOTOSYNTHESIS HAS TWO SETS OF REACTIONS: Light Reaction Dark Reaction Light DEPENDENT reaction LIGHT DEPENDENT REACTION: LIGHT DEPENDENT REACTION: LIGHT DEPENDENT REACTION: STROMA Cytochrome e- Plastoquinone (PQ) Plastocyanin (PC) THYLAKOID LUMEN Light inDEPENDENT reaction/ calvin cycle LIGHT DEPENDENT REACTION: LIGHT indEPENDENT REACTION/ Calvin cycle 1 STROMA (OUTSIDE THYLAKOID) 3 2 PS I PS II INSIDE THYLAKOID Glucose Formation GLUCOSE