PHOTOSYNTHESIS. KHADIJAH HANIM BT ABDUL RAHMAN SEM 1, 2013/2014 email@example.com. What is photosynthesis?. Photosynthesis is a process where plants through specialized pigment molecules absorb light energy, consume CO2 and H20 to produce O2 and carbohydrate.
KHADIJAH HANIM BT ABDUL RAHMAN
SEM 1, 2013/2014
12H2O + 6CO2 ----- light -----> 6O2+ C6H12O6 + 6H20
2H2O ----light---> O2 + 4[H]
4[H] + CO2 (CH2O) + H2O
Chloroplasts have two parts:
1. A double membrane encloses a fluid-filled space called the stroma or ground substance
2. Thylakoids = flattened sacs organized into stacks called grana
3. Chlorophylls and other pigments involved in absorption of solar energy are embedded within thylakoid membranes; these pigments absorb solar energy responsible for light-dependent reaction.
Photosynthesis has two sets of reactions
1. Light-dependent reactions = the energy from the sun is captured in energy carrying molecules
2. Light-independent reactions = energy carrying molecules from the light-dependent reactions are used to make carbohydrates
3 CO2 + 6 NADPH + 9 ATP -----> Glyceraldehyde-3-phosphate + 6 NADP+ + 9 ADP + 8 Pi