Photosynthesis Flashcards
What is step 1 of photosynthesis (Light Absorption)? Include location, process, and outcome.
Location: Chloroplasts (specifically, in the thylakoid membranes).
Process: Chlorophyll and other pigments absorb sunlight.
Outcome: Energy from light is captured and converted into chemical energy.
What is step 2 of photosynthesis (Water Splitting (Photolysis))? Include location, process, and outcome.
Location: Thylakoid membranes.
Process: Water molecules are split into oxygen, protons (H+), and electrons (e-).
Outcome: Oxygen is released as a byproduct, and electrons are used in later steps.
What is step 3 of photosynthesis (ETC)? Include location, process, and outcome.
Location: Thylakoid membranes.
Process: Electrons from water molecules move through protein complexes in the thylakoid membrane, creating an electron gradient. During this process an electron is passed to NADH+, making it NADH.
What is step 4 of photosynthesis (Chemiosmosis)? Include location, process, and outcome.
Location: Thylakoid membranes.
Process: Protons (H+) flow back into the chloroplast stroma through ATP synthase channels.
Outcome: The energy generated combines ADP and Pi to make ATP.
What is step 5 of photosynthesis (Calvin Cycle)? Include location, process, and outcome.
Location: Chloroplast stroma.
Enzyme: rubisco
Process: Carbon dioxide (CO2) from the atmosphere is combined with a 5-carbon molecule, ribulose-1,5-bisphosphate (RuBP) to form two 3-carbon molecule (3-PGA).
What is step 6 of photosynthesis (Sugar Synthesis)? Include location and process.
Location: Chloroplast stroma.
Process: ATP and NADPH are used to convert the 3-PGA molecules into sugars. One makes glucose and the other 5 make G3P.
What is step 7 of photosynthesis?
Location: Chloroplasts.
Process: The 5 G3P molecules are sent back through the cycle to be made into RUBP by ATP.
