Chemistry of Living Things

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
c o a t
An essential structural component of living cells and source of energy for animals (plural)
2.
s r
3.
n e i t
A chemical reaction in which an acid and a base interact with the formation of a salt
4.
l d
An oily organic compound insoluble in water but soluble in organic solvents (plural)
5.
d c a i
6.
b u
7.
p i
Nutrient in meat and beans that builds muscle (plural)
8.
p y e s
Any of a class of carbohydrates whose molecules contain chains of monosaccharide molecules (plural)
9.
c o r
An animal sterol that is normally synthesized by the liver
10.
e s
Any of several complex proteins that are produced by cells and act as catalysts in specific (plural)
11.
n c e a
12.
s h
A complex carbohydrate found chiefly in seeds, fruits, tubers, roots and stem pith of plants
13.
a a i
Organic compounds containing an ___ group and a carboxylic ___ group (plural)
14.
i r
A compound that exists in forms having different arrangements of atoms but the same molecular weight
15.
g l
A monosaccharide sugar that has several forms
16.
r l c a
A long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell
17.
f t
18.
m o s h
A sugar that does not hydrolyse to give other sugars (plural)
19.
n l o
A phosphoric ester of a ___ (plural)
20.
g t s
21.
s s
Any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings (plural)
22.
h y a n
23.
h i o s
24.
a
Any of various water-soluble compounds having a sour taste and capable of turning litmus red (plural)