Lipids Answers

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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
2
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Which lipid acts as a chemical messenger?

A
adipose tissue
B
cholesterol
C
testosterone
D
beeswax
3

Lipids exhibit different characteristics based on their structures. The image shows different examples of lipids, such as solid butter and liquid canola oil.Photo by NIH/Bill BransonWhich type of bond is found in many carbon-to-carbon bonds in canola oil, but very few carbon-to-carbon bonds in butter?

Question illustration
A
C–C
B
C=C
C
C=H
D
C–H
4

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.
5

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
6

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.
7

The diagram shows the general structure of a lipid, which consists of two main parts.Which part is circled?

Question illustration
A
alcohol group
B
fatty acid
C
carboxyl group
D
unsaturated lipid
8

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
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

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

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