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cainivinchap6maslako

chapter 6

QuestionAnswer
Autotroph an organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms
Heterotroph an organism that obtains food molecules by eating other organism or their byproducts and that cannot synthesize organic compounds from inorganic materials
Photosynthesis the process by which plants, algae and some bacteria use sunlight CO2 and water to form carbohydrates and oxygen
light reaction The first set of reactions in photosynthesis which are triggered by the absorption of light and produce NADPH and ATP to be used in the Calvin cycle.
Chloroplast an organelle found in plants and algae cells that where photosynthesis occurs.
thylakoid Membrane system of sacs found in chloroplasts that contains chlorophyll and are the site of the light reaction in photosynthesis.
stoma one of many openings in a leaf or stem of a plant that enables gas exchange to occur.
Chlorophyll a green pigment that is present in most plant cells that gives plant their characteristic green color and that reacts with sunlight CO2 and water to form carbohydrates
cellular respiration the process by which cells obtain food from carbs (No - the process by which cells obtain energy from carbohydrates)
Carbon fixation the synthesis of organic compounds from CO2 such as in photosynthesis.
Calvin cycle A biochemical pathway of photosynthesis in which carbon dioxide is converted to the 3-carbon sugar glyceraldehyde-3-phosphate, which can ultimately be used to form glucose.
Stomata Small pores usually on the underside of leaves that allow gases and water to enter or leave a plant.
C3 pathway plants that use the Calvin cycle directly after the light reaction in photosynthesis to form A three carbon intermediate.
C4 pathway a carbon fixation process in which carbon dioxide is bound to a compound to form A four carbon intermediate.
CAM pathway a water conserving carbon fixation process CAM plants take in carbon dioxide at night and fix it into various organic compounds and releases it during the day (into the Calvin cycle).
Ribulose biphosphate The 5-carbon sugar with 2 attached phosphates that bonds with CO2 for carbon fixation in the Calvin cycle
3 PGA A 3-carbon intermediate in the Calvin cycle
G3P Glyceraldehyde-3-phosphate The three carbon sugar produced in the Calvin cycle and ultimately used to make carbohydrates for later use.
NADPH and NADP+ the high energy and low energy forms of a compound for energy transfer in the two stages of photosynthesis. NADPH is produced in the light reaction and then used up in carbon fixation in the Calvin Cycle
Grade -1 for cellular respiration 19/19
Created by: Maslakowskis
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