Key Terms in Energy

adenosine triphosphate (ATP),

biofuel,

C4 photosynthesis,

Calvin cycle,

CAM (crassulacean acid metabolism),

carotenoid,

cellular respiration,

chemical energy,

chlorophyll,

chlorophyll a,

chlorophyll b,

chloroplast,

electromagnetic spectrum,

electron transport chain,

energy,

ethanol,

fermentation,

first law of thermodynamics,

fossil fuel,

glycolysis,

kinetic energy,

Krebs cycle,

light energy,

mitochondrial matrix,

NADPH,

photon,

photosynthesis,

photosystem,

pigment,

potential energy,

primary electron acceptor,

pyruvate,

rubisco,

second law of thermodynamics,

stoma (pl. stomata),

stroma,

thermodynamics,

thylakoid,

ABOUT THE CHAPTER OPENING PHOTO

A scanning electron micrograph of a section through the leaf of the Christmas rose (Helleborus niger). In the body of the leaf (center) are numerous cells containing chloroplasts (green), the organelles that are the site of photosynthesis within the leaf.

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