Photosynthesis

• Chloroplast


  • Absorbs light energy which is used for photosynthesis to make useful organic compounds
• Redox & gain of electrons/nitrogen: Oxidation involves the loss of electrons, Coenzymes are non-protein molecules that help enzymes work by transferring other molecules around e.g. NAD, NADP, FAD, Reduction involves the gain of electrons
• Photosystems have two parts: Light harvesting systems contain accessory pigments e.g. chlorophyll b to allow plants to absorb a greater wavelength of light, Reaction centres contain primary pigments e.g. chlorophyll a
• Photolysis uses light energy to split a molecule of water into oxygen, protons, and electrons
• Organic compounds contain carbon, while inorganic compounds don't contain carbon
• Cyclic photophosphorylation

  Uses light energy to make ATP and reduced NADP (NADPH), takes place in thylakoid membrane
• Photosynthesis

  Light Dependent
• Phosphorylation involves adding a phosphate, Photophosphorylation uses light energy to add a phosphate
• Light Dependent Reaction


  Uses light energy to make ATP and NADPH, involves chemiosmosis and ATP synthase
• Thylakoid


  • Increases surface area and rate of photosynthesis, uses products of Light Dependent Reaction to make useful organic compounds e.g. glucose, takes place in stroma