North Carolina Science Grade 8

Chapter 14: Carbon Chemistry

Carbon Chemistry

1.
Cyclohexane is in what form?
A)a helix
B)a chain
C)a ring
D)a bar
2.
High cholesterol can be caused by a diet high in __________.
A)unsaturated fats
B)starch
C)saturated fats
D)sugars
3.
An example of a hydrocarbon with a triple bond is __________.
A)ethane
B)ethene
C)ethone
D)ethyne
4.
Compounds with all single bonds end in what suffix?
A)-ane
B)-yne
C)-one;
D)-ene
5.
What results from the combination of glucose and fructose?
A)sucrose
B)lipid
C)lactose
D)protein
6.
Which are not examples of carbohydrates?
A)sugars
B)glycogen
C)starches
D)proteins
7.
Where is glycogen stored in the body?
A)bones
B)skin
C)liver
D)brain
8.
Starch contains molecules of __________.
A)fructose
B)lactose
C)glucose
D)sucrose
9.
Saturated lipids have __________.
A)only double bonds
B)only triple bonds
C)only single bonds
D)single, double, and triple bonds
10.
Protein is made from strings of __________.
A)alcohols
B)hydrocarbon rings
C)saturated hydrocarbons
D)amino acids
11.
How many amino acids are there?
A)99
B)20
C)millions
D)10
12.
Isooctane and octane are examples of __________.
A)unsaturated hydrocarbons
B)inorganic compounds
C)isomers
D)isopropyl
13.
What elements are found in all hydrocarbons?
A)hydrogen and carbon
B)carbon and oxygen
C)water and carbon
D)hydrogen and oxygen
14.
A polymer is made from smaller molecules called __________.
A)aminos
B)monomers
C)lipids
D)alcohols
15.
Rocks and minerals are examples of __________.
A)nonliving things
B)carbon things
C)organic things
D)living things
16.
The difference between ethanol, methanol, and isopropyl alcohol is related to __________.
A)the placement of carbon atoms
B)neither the number of carbon atoms nor their placement
C)the number of carbon atoms
D)the number of carbon atoms and their placement
17.
Lipids store energy in you body as __________.
A)fat
B)starch
C)glucose
D)glycogen
18.
A hydrocarbon chain with double or triple bonds between carbon atoms is said to be __________.
A)inorganic
B)organic
C)saturated
D)unsaturated
19.
Which is not an example of a polymer?
A)cellulose
B)lipids
C)alcohol
D)protein
20.
Compounds containing carbon are called __________ compounds.
A)organic
B)inorganic
C)hydrocarbon
D)amino
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