Living Environment Missing Letters
Name: ______________________ Date: ____________
Write the missing letters on the lines to finish each word.
1.
c
l
w
a
l
A rigid layer of polysaccharides enclosing the membrane of plant and prokaryotic ___
2.
e
u
a
r
o
t
i
Having cells with `good' or membrane-bound nuclei
3.
p
r
o
a
r
y
c
Having cells that lack membrane-bound nuclei
4.
d
f
u
i
o
n
The process in which there is movement of a substance from an area of high concentration of
5.
o
s
o
s
s
Diffusion of molecules through a semipermeable membrane from a place of higher concentration to
6.
h
y
p
e
r
n
i
In a state of abnormally high tension
7.
a
i
d
Any of various water-soluble compounds having a sour taste and capable of turning litmus red
8.
b
a
e
Bottom part something stands on; a safe spot in baseball
9.
a
t
m
The smallest component of an element having the chemical properties of the element
10.
o
r
g
n
c
A fertilizer that is derived from animal or vegetable matter
11.
c
a
r
b
h
r
a
e
An essential structural component of living cells and source of energy for animals
12.
l
i
i
An oily organic compound insoluble in water but soluble in organic solvents
14.
p
t
e
i
n
Nutrient in meat and beans that builds muscle
15.
n
u
l
e
i
a
d
Any of various macromolecules composed of ___ chains that are vital constituents of all
16.
h
y
d
o
y
s
i
A chemical reaction in which water reacts with a compound to produce other compounds
17.
n
u
l
e
s
Center of an atom or a cell
18.
c
e
l
m
m
r
a
n
A thin ___ enclosing the cytoplasm of a ___
20.
s
m
p
e
r
e
b
l
e
Selectively permeable
21.
t
r
a
s
p
r
A state of being carried away by overwhelming emotion
22.
c
e
l
l
t
r
y
The ___ that ___ form the fundamental structural and functional units of all living organisms
23.
n
e
t
r
o
An elementary particle with 0 charge and mass about equal to a proton
24.
e
l
r
o
n
An elementary particle with negative charge