Chemistry Worksheet # 6
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Do this worksheet after viewing the “Chem 6 Chemistry of Life” PowerPoint.
Answer questions on your own paper. You do not need to write out questions, and
you do not need to answer in sentences.
1. What 3 elements make up most of the compounds in the human body?
2. Complete this:
The elements don’t make us alive; the ________________________ do.
3. What is an organic compound?
4. Sort these compounds into those that are organic and those that are inorganic.
A. Water
B. Carbohydrate
C. Lipid
D. Carbon Dioxide E. Salt
F. Protein
5. Complete the chart below:
Molecules of
Life
Elements They
are Composed
of
Examples
Functions
(What they are
used for)
Smaller
Molecules
They are
Made of
Carbohydrates
Fats
Oils
Waxes
C, H, O, N
Fatty Acids and
Glycerol
Used to Make
Cell Parts
Enzymes
Nucleic Acid
6. What is an enzyme, and why are they necessary?
7. Where is the energy stored in lipid and carbohydrate molecules?
8. Why is the element carbon the key to making the molecules of life?
Nucleotides