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Photosynthesis

Photosynthesis & Cellular Respiration Study Guide Part 1

QuestionAnswer
What is Photosynthesis? Photosynthesis is the process of which the cell converts light energy to ATP or glucose.
What is the formula for Photosynthesis? (6)CO2+(6)H2O+Light= C6H12O6+(6)O2
What are the reactants and products of each stage? Reactants: Carbon Dioxide, Water, and Light. Products: C6H12O6 and Oxygen.
Where do the products go? The products go to be used in the Calvin Cycle.
What are the 2 Stages? The two stages of Photosynthesis is the Light Reaction and the Calvin Cycle (Dark Cycle).
How are CAM and C4 plants similar and different to C3 Plants? Similar: They all use the Calvin Cycle to create Glucose. Different: CAM and C4 Plants create carbon molecules that recycle through the Calvin Cycle, compared to the C3 Plants which have one cycle through the Calvin Cycle.
What environmental factors can affect the rate of photosynthesis? temperature, light, percipitation, and carbon dioxide levels.
What are pigments? Compounds that absorb the light for Photosynthesis.
What is the main pigment of Photosynthesis? Chlorophyll
What are the accessory pigments? Pigments that help Chlorophyll absorb more of the light spectrum.
What is the difference between chlorophyll a and the accessory pigments? Chlorophyll a is directly involved in light reactions, while as the accessory pigments aren't.
Where does each stage of photosynthesis take place? The Cell Membrane?
What are heterotrophs and autotrophs? heterotrophs:An organism that gains energy by eating it. autotrophs:Gains energy by sunlight.
What are the parts of a chloroplast? 2 Membranes, stacks of thylokoids (called Granum), and stroma.
Autotroph Organisms that use energy from sunlight or from chemical bonds in inorganic substances to make organic compounds
Photosynthesis Process that converts light energy from the sun into chemical energy in the form of organic compounds.
Heterotroph Animals and other organisms that must get energy from food instead of directly from sunlight or inorganic substances.
Light Reactions Light energy (absorbed from the sun) is converted to chemical energy, which is temporarily stored in ATP and the energy carrier molecule NADPH.
Calvin Cycle Organic compounds are formed using CO2 and the chemical energy stored in ATP and NADPH.
Chloroplast Organelles found in the cells of plants and algae.
Thylakoid Inside the inner membrane and another system of membranes, arranged as flattened sacs.
Granum Form of stacks that connect and layer the thylakoids.
Stroma Solution that surrounds the grana.
Pigment Compounds that absorb the light.
Chlorophyll Most important Pigment. (Main Pigment)
Carotenoid Another pigment.
Photosystem Cluster of pigment molecules and the proteins that the pigment molecules are embedded in.
Primary electron acceptor The acceptor of the electrons lost from chlorophyll is a molecule in the Thylakoid membrane.
Electron transport chain Series of molecules located in the Thylakoid Membrane
Chemiosmosis A process that synthesizes ATP.
Carbon fixation Incorporation of CO2 into organic compounds.
Stomata Small Pores found in the leaves of a plant.
C4 Pathway Alternative pathway that enables certain plants o to fix CO2 into four carbon compounds.
CAM Pathway Pathway that allows plants to fix carbon through them (crassulacean acid metabolism)
Created by: 9th@TJ
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