Name:
Block:
Date:
Light Reactions Practice Worksheet
1.
What types of organisms use photosynthesis, autotrophs or heterotrophs?
2.
Energy is released when the bonds between phosphate molecules of ATP are ____________________.
Energy is stored when the bonds between phosphate molecules of ATP are ____________________.
3.
What is the photosynthesis equation? Write it out in symbols (ex. H
2
O) AND words.
4.
Match the parts of a leaf to the correct function.
______a.
Where photosynthesis takes place
______b.
Openings that allows atmospheric gas to enter/leave
______c.
General name for xylem & phloem
A. Vein
B. Stoma
C. Mesophyll
5.
Label the parts of a chloroplast. Be sure to include thylakoids, grana, and stroma.
6.
What pigment makes plants green? ________________________
7.
What is NADP + ? When does it become NADPH?
8.
The first part of photosynthesis is called the Light Dependent Reactions, or simply just the __________________ reactions.
9.
What is the equation of the light dependent reactions?
10.
What part comes first, photosystem II or photosystem I?

In the space below, diagram the Light Dependent reactions as diagramed in class. Be sure to include all parts. Write a brief description of what is happening during the light dependent reactions below your diagram.
Description:
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________
__________________________________________________________________________________________________