_____ 2.  the ability to do work

_____ 3.  a reactant upon which an enzyme works

_____ 4.  green pigment that absorbs light

_____ 5.  chemical bond energy

_____ 6.  a substance that binds to an enzyme preventing
                catalysis of a reaction

_____ 7.  openings on the leaf surface for gas exchange 

_____ 8.  yellow, orange to brown pigments

_____ 9. the pumping of H+ across a membrane in order
                 to generate ATP

_____10.  the light independent reaction

_____11.  composed of stacks of thylakoids

_____12.  include red and blue pigments

_____13.  regulate the size of a stomata

_____14.  fluid found within the chloroplast

_____15.  location of the light reaction

_____16.  longest wavelength, lowest energy

_____17.  contain chloroplasts

_____18.  light dependent reaction

_____19.  disorder of a system

_____20.  a packet of light energy
 

B. violet light

C. inhibitor

D. mesophyll cells

E. coenzymes

F. stroma

G. red light

H. chlorophyll

I. carotenoids

J. guard cells

K. entropy

L. energy

M.  light reaction/       photophosphorylation

N.  Calvin Cycle

O.  stomata

P.  photon

Q.  thylakoid membranes

R.  phycobilins

S.  potential energy

T.  substrate

U.  granum