Lipids Answers

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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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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.
3

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
4

Which lipid acts as a chemical messenger?

A
adipose tissue
B
cholesterol
C
testosterone
D
beeswax
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

Which is a component of a phospholipid?

A
carbon ring
B
hydrophilic head
C
long-chain alcohol
D
amino acid
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
9

Every day, people cook with and consume a variety of foods that contain lipids. The table shows the amount of saturated fat in various foods. Amount of Saturated Fat in FoodsFood (1 tbs or 14 g)Saturated fat (g)Olive oil2Margarine2Butter7Lard5Canola oil1Which food contains the most kcal/gram, based on the data in the table?

A
margarine
B
lard
C
butter
D
canola oil
10

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
11

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
12

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.
13

Which fat has only single bonds between the carbon atoms in the fatty acid?

A
saturated
B
unsaturated
C
polyunsaturated
D
monounsaturated
14

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

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