Organic Chemistry Review
6.a. Students know that carbon, because of its ability
to combine in many ways with itself and other
elements, has a central role in the chemistry of living
organisms.
1. The central element found in living organisms is
a. Lead
b. Carbon
c. Oxygen
d. Nitrogen
2. Which of the following is not an organic compound?
a. Carbon dioxide
b. Water
c. Protein
d. Lipids
3. What are examples of carbon
a. Graphite
b. Diamond
c. Neither a nor b
d. Both a and b
4. Carbon is often called “the building block of life”
because
a. Carbon atoms form covalent bond
b. A carbon atom has four electrons in its
outer shell
c. Humans and mammals need to breathe
carbon gases to live
d. Chains of carbon atoms form the bases of
the compounds that sustain life.
5. Which of the following is an organic compound?
a. CH4
b. NaCl
c. HCl
d. CaCl2
6. Carbon can bond with
a. Only other carbon atoms
b. Almost every other element
c. Only carbon and oxygen atoms
d. It cannot bond to anything
7. Which contains the atoms of living things but is not
an example of a living organism?
a. Protein
b. Slime mold
c. Fungus
d. Bacterium
8. What type of bond is the arrow pointing to in the
compound?
a. Single bond
b. Double bond
c. Triple bond
d. Four bonds
9. If a carbon atom has formed covalent bonds with
two oxygen atoms at two electrons, how many
more bonds can that carbon form?
a. 0
b. 1
c. 2
d. 3
10. If a carbon atom has a covalent bond with two
hydrogen atoms and one nitrogen atom, how many
more bonds can that carbon atom form?
a. 1
b. 2
c. 3
d. 4
6.b. Students know that living organisms are made up
of molecules consisting largely of carbon, hydrogen,
nitrogen, oxygen, phosphorus, and sulfur.
11. Each group of elements below was identified in one
four samples. Which sample was most likely not
from living organism?
a. Nitrogen, sulfur, carbon
b. Carbon, hydrogen, iron
c. Chlorine, calcium, oxygen
d. Phosphorus, carbon, hydrogen
12. Nitrogen and sulfur bond with carbon, hydrogen
and oxygen to form
a. Gases
b. Minerals
c. Ionic salts
d. Organic molecules
13. The most common elements in living organisms are
carbon, oxygen hydrogen, and
a. Selenium, potassium, and iron
b. Sodium, potassium, and niacin
c. Nitrogen, sulfur, and potassium
d. Nitrogen, sulfur, and phosphorus
14. This element is the most abundant because it is
present in water
Organic Chemistry Review
15.
16.
17.
18.
19.
20.
a. Carbon
b. Oxygen
c. Hydrogen
d. Nitrogen
Aside from carbon, hydrogen, oxygen and nitrogen,
what element is found in proteins and amino acids?
a. Sulfur
b. Selenium
c. Phosphorus
d. Rubidium
What is the second most common element?
a. Carbon
b. Hydrogen
c. Sulfur
d. Water
Hydrogen is not an abundant element in the human
body.
a. True
b. False
Aside from CHNOPS there are other element found
in the human body.
a. True
b. False
There are only 6 elements found in the human
body.
a. True
b. False
CHNOPS is an acronym for
a. The six most abundant elements in the
human body
b. The six elements that make up the human
body
c. The six elements known to exist in the
human body
d. The six elements needed by the human
body
6.c. Students know that living organisms have many
different kinds of molecules, including small ones, such
as water and salt, and very large ones, such as
carbohydrates, fats, proteins, and DNA.
Numbers 21-24 are matching. Use the following list for
your selection. (Not all of the choices will be used)
21.
22.
23.
24.
25.
26.
27.
a. Carbohydrates
b. Proteins
c. Lipids
d. Nucleic Acids
e. Salt
These molecules help build muscle and are found in
meats, nuts and beans.
These molecules are the largest organic compounds
our body makes and holds our genetic information.
These molecules are found in oils, waxes, and
greases and are the back-up energy for our bodies,
but be careful not to eat too many!
These molecules are mostly sugars, starches like
bread and pasta, and give living things energy and
structure.
Fats, oils and waxes are common examples of
a. Lipids
b. Proteins
c. Nucleic acid
d. Carbohydrates
Which of the following statements about
carbohydrates is true?
a. Carbohydrates are not used by animals
b. Simple carbohydrates are not organic
compounds
c. Complex carbohydrates may contain
hundreds/thousands of simple sugars
d. Carbohydrates are made from unique
combinations of amino acids
Which of the following is a small compound needed
by the human body?
a. Iron
b. Protein
c. Carbohydrate
d. Table salt (sodium chloride)
28. Which of these molecules has the fewest atoms?
a. Water
b. Starch
c. Fructose
d. Oxygen gas
Organic Chemistry Review
29. Which of the following is a biochemical?
a. Proteins
b. Blood
c. Saliva
d. Urine
30. DNA is a chemical compound that
a. Dissolves in water
b. Bonds with carbon to form carbon dioxide
c. Passes genetic information from one cell to
another
d. Provides organisms with the energy they
need to live