Chapter 8: Photosynthesis, Part 1

Question 1

• forms of radiant energy that differ in wavelength

- various forms range from radio waves to gamma rays

Answer 1

electromagnetic spectrum

Question 2

in photosynthesis light is absorbed by green pigments

Answer 2

chlorophylls

Question 3

in photosynthesis light is absorbed by yellow-orange pigments

Answer 3

carotenoids

Question 4

the amount of light of different wavelengths that is absorbed by a pigment

Answer 4

absorption spectrum

Question 5

the effectiveness of light of each wavelength in driving photosynthesis produces a graph called…

Answer 5

action spectrum

Question 6

light absorbing pigments are organized with proteins and other molecules into large complexes embedded in thylakoid membranes and stromal lamellae

Answer 6

photosystems

Question 7

this photosystem is first

Answer 7

photosystem 2

Question 8

this photosystem is second

Answer 8

photosystem 1

Question 9

• light harvesting complex

- contains chlorophyll pigments arranged to optimize the capture of light energy

Answer 9

antenna complex

Question 10

contains a pair of specialized chlorophyll a molecules complexed with proteins

Answer 10

reaction center

Question 11

electrons travel in a one-way direction from H2O to NADPH

Answer 11

noncyclic electron flow

Question 12

-synthesis of ATP couple to the transfer of electrons energized by photons of light

Answer 12

photophosphorylation

Question 13

photosystem I works independently of photosystem II in a circular process

Answer 13

cyclic electron flow