Lipids

Question 1

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?

Revolt · Accepted Answer

butter

Question 2

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?

Revolt · Accepted Answer

double

Question 3

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

Revolt · Accepted Answer

The balance of ions inside a cell will be disrupted and proteins could leak out because the phospholipid bilayer forms the cell membrane.

Question 4

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

Revolt · Accepted Answer

Lipids are hydrophobic.

Question 5

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?

Revolt · Accepted Answer

C=C

Question 6

Which describes the basic structure of a fatty acid?

Revolt · Accepted Answer

a long carbon and hydrogen chain and a carboxyl group

Question 7

Which lipid acts as a chemical messenger?

Revolt · Accepted Answer

testosterone

Question 8

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

Revolt · Accepted Answer

carboxyl group

Question 9

Which is a component of a phospholipid?

Revolt · Accepted Answer

hydrophilic head

Question 10

Which fat is most likely a solid at room temperature?

Revolt · Accepted Answer

one that is saturated

Lipids Answers

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