Lipids Answers

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1
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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
2
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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
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 BransonCanola oil contains more unsaturated fat than butter. Which type of bond is found in unsaturated fatty acids?

Question illustration
A
A single bond between two carbon atoms.
B
A double bond between two carbon atoms.
C
A single bond between a carbon atom and a hydrogen atom.
D
A double bond between a carbon atom and an oxygen atom.
4

Which statement best describes a direct result of damage to a phospholipid bilayer?

A
The balance of ions inside a cell will be disrupted and proteins could leak out because the phospholipid bilayer forms the cell membrane.
B
Energy storage will be disrupted because the phospholipid bilayer is responsible for storing energy in the body.
C
Chemical messages could not be sent to different parts of the body because the phospholipid bilayer forms hormones.
D
A person would be vulnerable to disease because the phospholipid bilayer helps to fight infections in the body.
5

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.
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

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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