Lipids Answers

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1
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Where is most of a healthy person’s fat stored?

A
under the skin and around organs
B
in muscle tissue and cartilage
C
inside organs and skin cells
D
in the stomach and liver
2
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Which is a main function of lipids?

A
providing energy storage
B
transmitting genetic information
C
forming bone and muscles
D
fighting infection and disease
3

In an oil spill, why does the oil not mix with the seawater?

A
Lipids are hydrophobic.
B
Lipids are hydrophilic.
C
Lipids are saturated.
D
Lipids are unsaturated.
4

A biologist is studying a structure that is made up of two layers of phospholipids. What is she most likely studying?

A
DNA molecules
B
cell membranes
C
fats
D
wax
5

Which fat is most likely a solid at room temperature?

A
one that is saturated
B
one that is unsaturated
C
one with double bonds
D
one that contains no hydrogen
6

Which is one function of steroids?

A
waterproofing leaves and feathers
B
insulating and protecting bones and organs
C
serving as chemical messengers
D
providing energy storage
7

Which is a component of a phospholipid?

A
carbon ring
B
hydrophilic head
C
long-chain alcohol
D
amino acid
8

Which statement is true?

A
Lipids are a type of fat.
B
Fats are a type of lipid.
C
Fats and lipids are unrelated.
D
All lipids are fats, and all fats are lipids.
9

Which describes the basic structure of a fatty acid?

A
a long carbon and hydrogen chain and a phosphate group
B
a long carbon and hydrogen chain and a glycerol
C
a long carbon and hydrogen chain and a carboxyl group
D
a long carbon and hydrogen chain and an alcohol
10

If the last carbon atom of an unsaturated fatty acid is bonded to two hydrogen atoms and one carbon atom, what type of bond must exist between the last carbon and the other carbon atom?

A
single
B
double
C
triple
D
quadruple

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