Lipids

Question 1

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

Revolt · Accepted Answer

cell membranes

Question 2

Which lipid acts as a chemical messenger?

Revolt · Accepted Answer

testosterone

Question 3

Which statement is true?

Revolt · Accepted Answer

Fats are a type of lipid.

Question 4

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 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

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 7

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 8

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

Revolt · Accepted Answer

Lipids are hydrophobic.

Question 9

Which fat is most likely a solid at room temperature?

Revolt · Accepted Answer

one that is saturated

Question 10

Which is a component of a phospholipid?

Revolt · Accepted Answer

hydrophilic head

Lipids Answers

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