The Light Reactions

Front 1

autotroph

Back 1

an organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms

Front 2

photosynthesis

Back 2

the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to produce carbohydrates and oxygen

Front 3

heterotroph

Back 3

an organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesize organic compounds from inorganic materials

Front 4

light reactions

Back 4

the initial reactions in photosynthesis, which are triggered by the absorption of light by photosynthesis

Front 5

chlorplast

Back 5

in green plant cells, contains chlorophyll and in which photosynthesis takes place.

Front 6

thylakoid

Back 6

flattened sacs in the chloroplast of the inner membrane.

Front 7

granum

Back 7

the stacks of thylakoids embedded in the stroma of the chloroplast.

Front 8

stroma

Back 8

fluid surrounding the thykaloid

Front 9

pigment

Back 9

the natural coloring of plant or animal tissue

Front 10

chlorophyll

Back 10

green pigment, present in all green plants, also found in algae

Front 11

carotenoid

Back 11

yellow, orange, or red fat soluble pigments.

ex: tomatoes and autumn leaves

Front 12

photosystem

Back 12

process in which chlorophyll absorbs light and energy from photosynthesis

Front 13

primary electron

Back 13

a molecule that receives or accepts electrons from another molecule during a redox reaction

Front 14

acceptor

Back 14

and atom or molecule that is able to bind to or accept an electron

Front 15

electron transport

Back 15

series of compounds that transfer electrons

Front 16

chain

Back 16

a sequence of items in a line

Front 17

chemiosmosis

Back 17

movement of ions across the membrane, relates to ATP by using respiration or photosynthesis to to transport hydrogen

Front 18

calvin cycle

Back 18

pathway found in the stroma of the chloroplast. transforms carbon into sugar/glucose

Front 19

carbon fixation

Back 19

process of inorganic carbon to organic compounds by living organisms.

Front 20

stomata

Back 20

any pore in the leaf or stem of a plant