Biology Chp 8

Front 1

Metabolic process, carried out by green plants, by which visible light is trapped ad the energy used to synthesize compounds such as ATP and glucose

Back 1

Photosynthesis

Front 2

A photosynthetic or chemosynthetic organism that synthesizes complex organic molecules from simple inorganic ones

Back 2

Primary Producer

Front 3

The initial phase of photosynthesis, in which light energy is converted into chemical energy

Back 3

Light Reactions

Front 4

The phase of photosynthesis in which chemical energy capture in the light reactions is used to drive the reduction of CO2 to form carbohydrates

Back 4

Light-Independent Reactions

Front 5

A self-propagating wave that travels through space and has both electrical and magnetic properties

Back 5

Electromagnetic Radiation

Front 6

A quantum of visible radiation; a "packet" of light energy

Back 6

Photons

Front 7

The distance between successive peaks of a wave train, such as electromagnetic radiation

Back 7

Wavelength

Front 8

Complete retention, without reflection or transmission

Back 8

Absorption

Front 9

The lowest energy state of an atom of molecule

Back 9

Ground State

Front 10

The state of an atom or molecule when, after absorbing energy, it has more energy than in its normal, ground state

Back 10

Excited State

Front 11

A substance that absorbs visible light

Back 11

Pigments

Front 12

A graph of light absorption versus wavelength of light; shows how much light is absorbed at each wavelength

Back 12

Absorption Spectrum

Front 13

A graph of biological process versus light wavelength, shows which wavelengths are involved in the process

Back 13

Action Spectrum

Front 14

Any of a few green pigments associated with chloroplast or with certain bacterial membranes; responsible for trapping light energy for photosynthesis

Back 14

Chlorophyll

Front 15

Pigments that absorb light and transfer energy to chlorophylls for photosynthesis

Back 15

Accessory Pigments

Front 16

A yellow, orange, or red lipid pigment commonly found as an accessory pigment in photosynthesis, also found in fungi

Back 16

Carotenoids

Front 17

Photosynthetic pigment that absorbs red, yellow, orange, and green light and is found in cyanobacteria and some red algae

Back 17

Phycobilins

Front 18

In photosynthesis, a group of different molecules that cooperate to absorb light energy and transfer it to a reaction center

Back 18

Antenna Systems

Front 19

A group of transfer protein that receive energy from light absorbing pigments and convert it to chemical energy by redox reaction

Back 19

Reaction Ceeter

Front 20

A compound similar to NAD, but possessing another phosphate group; plays similar roles but is used by different enzymes

Back 20

NADP+ (nicotinamide adenine dinucleotide phosphate)

Front 21

In photosynthesis, the flow of electrons that forms ATP, NADPH, and O2

Back 21

Noncyclic Electron Transport

Front 22

A light-harvesting complex in the chloroplast thylakoid composed of pigments and proteins

Back 22

Photosystems

Front 23

In photosynthesis, the reaction that absorb light at 700nm, passing electrons to ferrodoxin and then to NADPH. RIch in Chlorophyll a

Back 23

Photosystems I

Front 24

In photosynthesis, the reactions that absorb light at 660nm, passing electrons to the electron transport chain in the chloroplast. Rich in chlorophyll b

Back 24

Photosystems II

Front 25

A five carbon sugar in nucleotides and RNA

Back 25

Ribose

Front 26

A protein containing iron that mediates the transfer of electrons in a number of pathways, including the light reaction of photosynthesis

Back 26

Ferredoxin

Front 27

In photosynthetic light reaction, the flow of electrons that produces ATP but no NADPH

Back 27

Cyclic Electron Transport

Front 28

A mobile electron carrier within the thylakoid membrane of the chloroplast linking photosystems I and II of photosynthesis

Back 28

Plastoquinone (PG)

Front 29

The stage of photosynthesis in which CO2 reacts with RuBP to form 3PG, 3PG is reduced to a sugar, and RuBP is regenerated, while other products are released to the rest of the plant

Back 29

Calvin Cycle

Front 30

An enzyme that catalyzes the addition of oxygen to substrate from O2

Back 30

Oxygenase

Front 31

An enzyme that catalyzes the addition of carboxyl groups to a substrate

Back 31

Carboxylase

Front 32

Chloroplast- containing, photosynthetic cells in the interior of leaves

Back 32

Mesophyll

Front 33

Form of photosynthesis in which 3- phosphoglycerate is the first stable product, and ribulose bisphoshpate is the CO2 receptor

Back 33

C3 Plant

Front 34

For of photosynthesis in which oxaloacetate is the first stable product, and phosphoenolpyruvate is the CO2 acceptor. C4 plants also perform the reactions of C3 photosynthesis

Back 34

C4 Plants

Front 35

The enzyme that combines crbon dioxide with PEP to form a 4- carbon dicarboxylic acid at start of C4 photosynthesis or of crassulacean acid metabolism

Back 35

PEP Carboxylase

Front 36

Part of a tissue that surrounds the veins of plants; contains chloroplasts in C$ plants

Back 36

Bundle Sheath Cells

Front 37

A metabolic pathway enabling the plants that possess it to store carbon dioxide at night then perform photosynthesis during the day with stomata closed

Back 37

Crassulacean Acid Metabolism (CAM)