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BIOL 161 Ch 7
Term and Definition
| Term | Definition |
|---|---|
| Autotrophs | plants, algae, cyanobacteria |
| Chloroplast | found in plants- use pigments to capture energy from sunlight and convert to energy (photosynthesis) |
| Chlorophyll A | Primary pigment in photosynthesis |
| Chlorophyll B | Secondary pigment in photosynthesis |
| Stroma | fluid surrounding the grana in a chloroplast |
| Thylakoid space | inner space of a thylakoid, also known as lumen |
| Light Reaction | first stage of photosynthesis- uses light energy to make ATP and NADPH- takes place in the thylakoid membrane |
| Photosynthesis | the process by which green plants and certain other organisms transform light energy into chemical energy |
| Hydrogen ion gradient | a concentration difference of hydrogen ions (H+) across the thylakoid membrane within a chloroplast |
| Photosystem 1 | Absorbs light of longer wavelengths |
| Photosystem 2 | Absorbs light of shorter wavelengths |
| Photophosphorylation | the process where light energy from the sun is used to convert ADP to ATP. Ex. Light reaction |
| Atp synthase | an enzyme found in the membranes of mitochondria and chloroplasts that generates ATP |
| NADP+ | assists chlorophyll in capturing light |
| NADPH | provides the electrons required to reduce carbon dioxide into glucose in the Calvin Cycle |
| Carbon dioxide fixation | Converts carbon dioxide into organic compounds, like sugar. Ex. Calvin Cycle |
| Calvin Cycle | second stage of photosynthesis- uses ATP and NADPH from light reaction to make glucose- takes place in the stroma |
| Granum | Stack of thylakoids |
Created by:
keslee
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