Some fun things about Photosynthesis

Draw and label a diagram showing the structure of a chloroplast as seen in electron micrographs.




Explain photophosphorylation in the terms of chemiosmosis.
Photophosphorylation is the production of ATP using the energy of sunlight. The process of chemiosmosis makes photophosphorylation possible. Chemiosmosis is the movement of ions across a selectively permeable membrane and down a concentration gradient. During photosynthesis, light is absorbed by cholorphyll molecules in photosystems. Electrons within these molecules are then raised to a higher energy state; they become excited. There is a high concentration of H+ from the pumping of protons. Then, H+ accumulates in the thyhlakoid space. Protons diffuse through ATP synthase where they reduce ADP to ATP.

State the final products of the two photosystems involved in the light-dependent reactions of photosynthesis.
 The final products of the two photosystems involved in light-dependent reactions of photosynthesis are ATP and NADPH.

How are the products of the light-dependent reaction important to the light-independent reaction?
The products (glucose, amino acids, organic compounds, ATP, and NADPH)of the light-dependent reaction are very important. The light-independent reactions use these products in order to fuel their processes and carry out the Calvin Cycle. It is its reactants.