Photosynthesis and Respiration
Name: ______________________ Date: ____________
Write the missing letters on the lines to finish each word.
1.
p
t
o
s
y
n
s
How plants make food from sunlight
2.
p
g
m
Any substance whose presence in plant or animal tissues produces a characteristic color
3.
c
h
l
o
h
Any of a group of green pigments found in photosynthetic organisms
4.
a
t
r
h
Plant capable of synthesizing its own food from simple organic substances
5.
h
t
e
r
h
An organism that depends on complex organic substances for nutrition
7.
r
s
p
i
o
The metabolic processes whereby certain organisms obtain energy from organic molecules
8.
f
e
e
n
t
n
A process in which an agent causes an organic substance to break down into simpler substances