Question 1

One function of glycerophospholipids is to provide structure to cell membranes.

Accepted Answer

A) True 
 B)False

Question 2

Cholesterol belongs to the ________ group of lipids.

Accepted Answer

A) glycerophospholipid 
B) steroid 
C) prostaglandin 
D) triacylglycerol 
E) wax

Question 3

Glycerophospholipids are components of cell membranes.

Accepted Answer

A) True 
 B)False

Question 4

The main lipid components in cellular membranes are ________.

Accepted Answer

A) glycerolphospholipids 
B) fatty acids 
C) steroids 
D) triacylglycerols 
E) waxes

Question 5

Match between columns
                        Premises: the product of reacting a triacylglycerol with a strong base and water
a fatty acid with at least one double bond
form triacylglycerols when combined with glycerol
the functional group of triacylglycerols
the melting points of saturated fats compared to unsaturated fats
a lipid that cannot be hydrolyzed
the process of converting unsaturated fats into saturated fats
a characteristic common to most lipids
a source of most saturated fats

Accepted Answer

The Answer of cholesterol and fatty acids and animals and is...

Question 6

Which statement is not true?

Accepted Answer

A) Lipids are found in cell membranes. 
B) Lipids are soluble in organic solvents. 
C) There are many different types of lipids. 
D) All lipids contain fatty acids. 
E) Some hormones are lipids.

Question 7

Waxes are lipids derived from ________.

Accepted Answer

A) a long-chain alcohol and a long-chain fatty acid 
B) glycerol and three fatty acids 
C) glycerol,fatty acids,phosphate,and an amino alcohol 
D) fatty acids,phosphate,and an amino alcohol 
E) steroids

Question 8

The name of the reaction that occurs when a fat reacts with sodium hydroxide and water is ________.

Accepted Answer

A) hydrogenation 
B) reduction 
C) hydration 
D) oxidation 
E) saponification

Question 9

Which of the following is not a function of lipids in the human body?

Accepted Answer

A) energy storage 
B) insulation 
C) protection 
D) chemical messengers 
E) pH regulation

Question 10

The skeletal structure of palmitoleic acid is shown below.Palmitoleic acid is a ________.

Accepted Answer

A) saturated fatty acid 
B) polyunsaturated fatty acid 
C) monounsaturated fatty acid 
D) strong acid 
E) monosaturated fatty acid

Question 11

A lipoprotein particle functions to ________.

Accepted Answer

A) dissolve polar lipids for excretion 
B) metabolize lipids into new substances 
C) dissolve polar lipids in urine 
D) transport nonpolar lipid to body cells 
E) store lipids in the tissues

Question 12

The interior of a lipid bilayer is the hydrophilic region.

Accepted Answer

A) True 
 B)False

Question 13

Margarine containing partially hydrogenated soybean oil is solid because ________.

Accepted Answer

A) it contains only saturated fats 
B) it contains only trans fatty acids 
C) some of its double bonds have been converted to single bonds 
D) it contains only cis carbon-carbon double bonds 
E) it contains only polyunsaturated fatty acids

Question 14

Answer the following question(s)about the diagram shown below. 
-In this diagram of a cell membrane,the small branched object labeled (A)is part of a ________.

Accepted Answer

A) steroid 
B) hydrophobic region 
C) membrane protein 
D) glycerophospholipid 
E) carbohydrate side chain

Question 15

Answer the following question(s)about the diagram shown below. 
-In the fluid-mosaic model that describes cell membranes,________.

Accepted Answer

A) there are three layers of phospholipid molecules 
B) two layers of phospholipid molecules have their nonpolar sections oriented to the inside of the membrane 
C) two layers of phospholipid molecules have their nonpolar sections along the outer surface of the membrane 
D) A single row of phospholipid molecules forms a barrier between the inside and outside of the cell 
E) two layers of proteins separate the contents inside a cell from the surrounding fluids

Question 16

Accepted Answer

A) glycerophospholipid 
B) triacylglycerol 
C) fatty acid 
D) steroid 
E) wax

Question 17

Glycerophospholipids can interact both with other lipids and water because they contain ________.

Accepted Answer

A) double bonds 
B) polar regions and nonpolar regions 
C) glycerol 
D) saturated fatty acids 
E) cholesterol

Question 18

A triacylglycerol that is solid at room temperature is called a(n)________.

Accepted Answer

A) cephalin 
B) lecithin 
C) oil 
D) wax 
E) fat

Question 19

A polyunsaturated fatty acid contains more than one ________.

Accepted Answer

A) carboxyl group 
B) hydroxyl group 
C) carbonyl group 
D) long carbon chain 
E) carbon-carbon double bond

Question 20

Waxes do not contain fatty acids.

Accepted Answer

A) True 
 B)False

Exam 15: Lipids

One function of glycerophospholipids is to provide structure to cell membranes.

Cholesterol belongs to the ________ group of lipids.

Glycerophospholipids are components of cell membranes.

The main lipid components in cellular membranes are ________.

Match the following.

Which statement is not true?

Waxes are lipids derived from ________.

The name of the reaction that occurs when a fat reacts with sodium hydroxide and water is ________.

Which of the following is not a function of lipids in the human body?

The skeletal structure of palmitoleic acid is shown below.Palmitoleic acid is a ________.

A lipoprotein particle functions to ________.

The interior of a lipid bilayer is the hydrophilic region.

Margarine containing partially hydrogenated soybean oil is solid because ________.

Answer the following question(s) about the diagram shown below. -In this diagram of a cell membrane,the small branched object labeled (A) is part of a ________.

Answer the following question(s) about the diagram shown below. -In the fluid-mosaic model that describes cell membranes,________.

Glycerophospholipids can interact both with other lipids and water because they contain ________.

A triacylglycerol that is solid at room temperature is called a(n) ________.

A polyunsaturated fatty acid contains more than one ________.

Waxes do not contain fatty acids.