Chapter 6 -Pss Vocabulary

Front 1

Photosynthesis

Back 1

process by which green plants convert light energy into the chemical energy molecule of glucose

Front 2

Biochemical pathway

Back 2

series of chemical reactions in which the product of one reaction is consumed in the next reaction

Front 3

light reaction

Back 3

initial reactions in PSS including te absorption of light by photosystems I & II, passage of electrons along the etc, production of NADPH & oxygen, and synthesis of ATP through chemiosmosis

Front 4

thylakoids

Back 4

flattened, membrane sacs inside a chloroplast, contains most of components involved in light reaction

Front 5

granum

Back 5

stack of thylakoids

Front 6

stroma

Back 6

solution that surrounds the thylakoids in a chloroplast

Front 7

visible spectrum

Back 7

portion of the sunlight perceived by the human eye as various colors (colors of the rainbow)

Front 8

chlorophyll

Back 8

a class of light absorbing, green pigments used in PSS

Front 9

accessory pigments

Back 9

pigment that absorbs light energy and transfers the energy to chlorophyll a in PSS

Front 10

Carotenoids

Back 10

light absorbing compound that function as an accessory pigment in PSS

Front 11

Photosystem

Back 11

in plants, a unit of several hundred chlorophyll molecules and carotenoid pigment molecules in the thylakoid membrane

Front 12

Electron Transport Chain

Back 12

molecules in the thylakoid membrane or inner mitochondrial membrane that uses some of the energy in electrons to pump protons across the membrane

Front 13

chemiosmosis

Back 13

process in chloroplasts and mitochondria which the movement of protons down their concentration gradient across a membrane is coupled to the synthesis(making) of ATP

Front 14

Adenosine Diphosphate (ADP)

Back 14

substance involved in energy metabolism formed by the breakdown of adeonosine triphosphate. (ATP)

Front 15

Calvin Cycle (dark reaction)

Back 15

biochemical pathway of PSS in which carbon dioxide is converted into carbohydrates (carbon fixation)

Front 16

Stroma

Back 16

one of the many small pores usually located on the underside of a leaf; aids in gas exchange.