Chapter 8: the Working Cell: Energy from Sunlight

Chapter 8: The Working Cell: Energy from Sunlight

1.chloroplast-

2.chlorophyll-

3.stroma-

4.thylakoids-

5.light reactions-

6.Calvin cycle-

7.wavelength-

8.electromagnetic spectrum-

9.pigments-

10.paper chromatography-

11. photosystems-

12. Carbon cycle

13. greenhouse effect- Chapter 8 – Vocabulary

1. chloroplast- organelle found in some plant cells and certain unicellular organisms where photosynthesis takes place (Concepts 6.5, 8.1)

2. chlorophyll- pigment that gives a chloroplast its green color; uses light energy to split water molecules during photosynthesis (Concept 8.1)

3. stroma- thick fluid contained in the inner membrane of a chloroplast (Concept 8.1)

4. thylakoids- disk-shaped sac in the stroma of a chloroplast; site of the light reactions of photosynthesis (Concept 8.1)

5. light reactions- chemical reactions that convert the sun's energy to chemical energy; take place in the membranes of thylakoids in the chloroplast (Concept 8.1)

6. Calvin cycle- cycle in plants that makes sugar from carbon dioxide, H+ ions, and high-energy electrons carried by NADPH (Concept 8.1)

7. wavelength- distance between adjacent waves (Concept 8.2)

8. electromagnetic spectrum- range of types of electromagnetic energy from gamma waves to radio waves (Concept 8.2)

9. pigments- chemical compound that determines a substance's color (Concept 8.2)

10. paper chromatography- laboratory technique used to observe the different pigments in a material (Concept 8.2)

11. photosystems- cluster of chlorophyll and other molecules in a thylakoid (Concept 8.2)

12. Carbon cycle- process by which carbon moves from inorganic to organic compounds and back (Concept 8.4)

13. greenhouse effect- process by which atmospheric gases trap heat close to Earth's surface and prevent it from escaping into space (Concepts 8.4, 36.4)