Photosynthesis Flashcards
What is the goal of photosynthesis?
to produce sugars for cell respiration and growth of the plant
Where does photosynthesis occur?
Chloroplast; within the inner membrane
An energy packet is known as a…
photon
Pigments absorb…
certain wavelengths of light
Where is Chlorophyll found in plants?
Thylakoid Membrane
What are the best colors for growing plants?
blue/red
Where does the LDR happen?
in the thylakoid membrane
Photolysis
light energy splits water molecules into Hydrogen and Oxygen
Electron Transport Chain
the excited electrons from photosystem 2 are passed through a series of protein carriers in the thylakoid membrane
Chemiosmosis
diffusion of ions across a membrane
ATP Synthase
uses the energy of the H+ flow to add a phosphate to ADP which makes ATP
ATP
takes its energy to the stroma to help in the light-dependent reaction
NADPH+ reductase enzyme
takes the electrons and H+ and bonds them with NADP+ to form the energy carrier molecule called NADPH
NADPH
takes its energy to the LDR in the stroma
Where does the LIR happen?
occurs in the stroma of the chloroplast
Stage one: Carbon Fixation
the enzyme RuBisCO fixes or attached carbon dioxide into a 5 carbon organic molecule
Stage 2: Reduction
ATP and NADPH reduce the newly formed compound by transferring electrons and sugar is made and leaves the cycle
Stage 3: Regeneration
RuBP is regenerated so the cycle can continue
Summary of Calvin Cycle
It takes 6 turns of the Calvin Cycle to fix 6 carbon atoms from 6CO2. These 6 turns require energy input from 9 ATP molecules and 6 NADPH molecules. The result is 1 glucose molecule.
Photosynthesis includes…
LDR and Calvin Cycle
LDR takes place in the…
Thylakoid of the chloroplast
LDR uses…
water/light
LDR produces…
ATP, NADPH, O2
Calvin Cycle takes place in the…
stroma of the chloroplast
Calvin Cycle uses…
ATP/NADPH and Carbon Dioxide
Calvin Cycle produces…
glucose
