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Chapter #11 - Extra Credit Test

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

The classes of organic compounds found in all living things are
a.
vitamins and minerals.
b.
halogen compounds, alcohols, organic acids, and esters.
c.
simple carbohydrates and hydrocarbons.
d.
carbohydrates, lipids, proteins, and nucleic acids.
 

 2. 

Which organic compound carries information from one generation to the next during reproduction?
a.
carbohydrates
b.
lipids
c.
proteins
d.
DNA
 

 3. 

Most of your body’s fluids are made up of
a.
lipids.
b.
water.
c.
nucleic acids.
d.
organic acids.
 

 4. 

Which of the following describes lipids?
a.
used to store energy
c.
make up most of the cell membrane
b.
do not dissolve in water
d.
all of the above
 

 5. 

The compounds that store information for building proteins are
a.
lipids.
c.
nucleic acids.
b.
hydrocarbons.
d.
carbohydrates.
 

 6. 

Glucose is a
a.
wax.
c.
simple carbohydrate.
b.
starch.
d.
complex carbohydrate.
 

 7. 

Which of these statements about proteins is NOT correct?
a.
Certain proteins provide structural support for cells.
b.
Proteins are involved in the transport of molecules across membranes.
c.
The function of a protein depends on its shape.
d.
Nucleic acids are the building blocks of proteins.
 

 8. 

Which of the following is an inorganic compound?
a.
methane (CH4)
c.
methylamine (CH3NH2)
b.
water (H2O)
d.
acetic acid (CH3COOH)
 

 9. 

Carbohydrates are
a.
made of one or more simple sugars bonded together.
b.
used as a source of energy.
c.
used for energy storage.
d.
All of the above
 

 10. 

Which of the following is used to store energy in the body?
a.
carbohydrates
c.
proteins
b.
lipids
d.
both (a) and (b)
 

 11. 

When an organism has used up most of its carbohydrates, it can obtain energy by
a.
building lipids.
c.
breaking down lipids.
b.
storing lipids.
d.
dissolving lipids in water.
 

 12. 

Carbon is able to bond with atoms of other elements in many different ways because it has
a.
six protons.
b.
four electrons.
c.
six valence electrons.
d.
four valence electrons.
 

 13. 

An element whose atoms can make straight chains, branched chains, and rings is
a.
carbon.
b.
hydrogen.
c.
nitrogen.
d.
oxygen.
 

 14. 

How many chemical bonds can each carbon atom form?
a.
one
b.
two
c.
three
d.
four
 

 15. 

Which form of pure carbon is so hard that it can be used in cutting tools?
a.
diamond
b.
graphite
c.
nanotube
d.
fullerene
 

 16. 

Which form of pure carbon is formed of layers that slide past one another?
a.
diamond
b.
graphite
c.
fullerene
d.
nanotube
 

 17. 

What is the shape of pure carbon fullerenes?
a.
hollow tube
b.
hollow ball with a pattern like a geodesic dome
c.
flat layers
d.
hard, solid crystal shaped like a ball
 

 18. 

What is another name for carbon compounds?
a.
carbohydrates
b.
fullerenes
c.
hydrocarbons
d.
organic compounds
 

 19. 

What can you tell about methane (CH4) from its molecular formula?
a.
It contains four carbon atoms.
b.
It contains one hydrogen atom.
c.
It contains four hydrogen atoms.
d.
It forms groups of four molecules.
 

 20. 

Compounds that contain only the elements carbon and hydrogen are called
a.
carbon chains.
b.
hydrocarbons.
c.
isomers.
d.
substituted hydrocarbons.
 

 21. 

In a nanotube, carbon atoms are arranged in
a.
flat layers.
b.
the shape of a spiral ladder.
c.
the shape of a long, hollow cylinder.
d.
the shape of a hollow sphere.
 

 22. 

A hydrocarbon in which each carbon atom in the molecule shares a single bond with each of four other atoms is a(n)
a.
saturated hydrocarbon.
c.
polyunsaturated hydrocarbon.
b.
unsaturated hydrocarbon.
d.
aromatic hydrocarbon.
 

 23. 

A hydrocarbon in which at least two carbon atoms share a double bond or a triple bond is a(n)
a.
aromatic hydrocarbon.
c.
polyunsaturated hydrocarbon.
b.
unsaturated hydrocarbon.
d.
alkane.
 



 
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