Question 1

A double cheeseburger with bacon contains 640 kcal and 39 g of fat. Calculate the number of kilocalories from fat, rounded to the tens place (1 gram of fat = 9 kcal).

Accepted Answer

A) 4.3 kcal from fat 
B) 350 kcal from fat 
C) 640 kcal from fat 
D) 71 kcal from fat 
E) 39 kcal from fat 
A) 4.3 kcal from fat 
B) 350 kcal from fat 
C) 640 kcal from fat 
D) 71 kcal from fat 
E) 39 kcal from fat B

Question 2

The steroid hormone present in birth control pills is

Accepted Answer

A) aldosterone. 
B) norethindrone. 
C) estrogen. 
D) cortisone. 
E) progesterone. 
A) aldosterone. 
B) norethindrone. 
C) estrogen. 
D) cortisone. 
E) progesterone. B

Question 3

The most common type of gallstones is composed of almost pure

Accepted Answer

A) cholesterol. 
B) calcium salts of fatty acids. 
C) anabolic steroids. 
D) glycerophospholipids. 
E) bile salts. 
A) cholesterol. 
B) calcium salts of fatty acids. 
C) anabolic steroids. 
D) glycerophospholipids. 
E) bile salts. A

Question 4

What phospholipid contains fatty acids but NOT glycerol?

Accepted Answer

A) glycolipid 
B) lecithin 
C) corticosteroid 
D) sphingolipid 
E) cephalin 
A) glycolipid 
B) lecithin 
C) corticosteroid 
D) sphingolipid 
E) cephalin

Question 5

An ion moves from low to high concentration across the cell membrane because of ________.

Accepted Answer

A) diffusion 
B) facilitated transport 
C) active transport 
A) diffusion 
B) facilitated transport 
C) active transport

Question 6

The components in the following glycerophospholipid are

Accepted Answer

A) glycerol, palmitic acid, phosphate, and ethanolamine. 
B) glycerol, palmitic acid, phosphate, and galactose. 
C) sphingosine, palmitic acid, phosphate, and serine. 
D) sphingosine, palmitic acid, phosphate, and ethanolamine. 
E) sphingosine, palmitic acid, phosphate, and choline. 
A) glycerol, palmitic acid, phosphate, and ethanolamine. 
B) glycerol, palmitic acid, phosphate, and galactose. 
C) sphingosine, palmitic acid, phosphate, and serine. 
D) sphingosine, palmitic acid, phosphate, and ethanolamine. 
E) sphingosine, palmitic acid, phosphate, and choline.

Question 7

The products of the saponification of a fat are

Accepted Answer

A) salts of fatty acids. 
B) fatty acids and glycerol. 
C) the esters of fatty acids. 
D) phospholipids. 
E) salts of fatty acids and glycerol. 
A) salts of fatty acids. 
B) fatty acids and glycerol. 
C) the esters of fatty acids. 
D) phospholipids. 
E) salts of fatty acids and glycerol.

Question 8

In the list below, which lipid type is most soluble in water?

Accepted Answer

A) glycerophospholipids 
B) oils 
C) triacylglycerols 
D) steroids 
E) waxes 
A) glycerophospholipids 
B) oils 
C) triacylglycerols 
D) steroids 
E) waxes

Question 9

One inner component of a typical cell membrane is

Accepted Answer

A) palmitic acid. 
B) cholesterol. 
C) glycerol. 
D) glycine. 
E) glucose. 
A) palmitic acid. 
B) cholesterol. 
C) glycerol. 
D) glycine. 
E) glucose.

Question 10

Bile salts are synthesized from ________.

Accepted Answer

A) cholesterol 
B) cephalin 
C) pancreas 
D) triacylglycerols 
E) lecithin 
A) cholesterol 
B) cephalin 
C) pancreas 
D) triacylglycerols 
E) lecithin

Question 11

Answer the question(s)that follow about the diagram shown below.  
-In this diagram of a cell membrane, the object labeled (D)is

Accepted Answer

A) cholesterol. 
B) hydrophobic region. 
C) steroid. 
D) glycerophospholipid. 
E) glycosphingolipid. 
A) cholesterol. 
B) hydrophobic region. 
C) steroid. 
D) glycerophospholipid. 
E) glycosphingolipid.

Question 12

Which of the following is NOT a function of glycerophospholipids?

Accepted Answer

A) protect nerve cells 
B) transport of triacylglycerols 
C) transport of cholesterol 
D) aid in digestion 
E) regulation of cellular permeability 
A) protect nerve cells 
B) transport of triacylglycerols 
C) transport of cholesterol 
D) aid in digestion 
E) regulation of cellular permeability

Question 13

Which statement is NOT true?

Accepted Answer

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

Question 14

The structure is that of ______ acid.

Accepted Answer

A) arachidonic 
B) oleic 
C) stearic 
D) palmitic 
E) linoleic 
A) arachidonic 
B) oleic 
C) stearic 
D) palmitic 
E) linoleic

Question 15

In the fluid-mosaic model that describes plasma membranes,

Accepted Answer

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

Question 16

Margarine containing partially hydrogenated soybean oil is solid because

Accepted Answer

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

Question 17

Answer the question(s)that follow about the diagram shown below.  
-In the lipid bilayer of a cell membrane,

Accepted Answer

A) the hydrophilic heads are on the inner and outer surface and cholesterol is in the middle. 
B) cholesterol is on the inner and outer surface and phospholipids are in the middle. 
C) the hydrophilic heads are on the inner and outer surface and the hydrophobic tails in the middle. 
D) there is a random arrangement of phospholipids. 
E) the hydrophobic heads are on the inner and outer surface and the hydrophilic tails in the middle. 
A) the hydrophilic heads are on the inner and outer surface and cholesterol is in the middle. 
B) cholesterol is on the inner and outer surface and phospholipids are in the middle. 
C) the hydrophilic heads are on the inner and outer surface and the hydrophobic tails in the middle. 
D) there is a random arrangement of phospholipids. 
E) the hydrophobic heads are on the inner and outer surface and the hydrophilic tails in the middle.

Question 18

Synthesis of cholesterol and bile salts takes place in the

Accepted Answer

A) gall bladder. 
B) liver. 
C) small intestine. 
D) pancreas. 
E) large intestine. 
A) gall bladder. 
B) liver. 
C) small intestine. 
D) pancreas. 
E) large intestine.

Question 19

Choose he satrated fatty acid from the compounds below

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 20

Which of the following is a polyunsaturated fat?

Accepted Answer

A) trilinolein 
B) tristearin 
C) trimyristin 
D) triolein 
E) tripalmitin 
A) trilinolein 
B) tristearin 
C) trimyristin 
D) triolein 
E) tripalmitin

Exam 17: Lipids

A double cheeseburger with bacon contains 640 kcal and 39 g of fat. Calculate the number of kilocalories from fat, rounded to the tens place (1 gram of fat = 9 kcal).

The steroid hormone present in birth control pills is

The most common type of gallstones is composed of almost pure

What phospholipid contains fatty acids but NOT glycerol?

An ion moves from low to high concentration across the cell membrane because of ________.

The components in the following glycerophospholipid are

The products of the saponification of a fat are

In the list below, which lipid type is most soluble in water?

One inner component of a typical cell membrane is

Bile salts are synthesized from ________.

Answer the question(s)that follow about the diagram shown below. -In this diagram of a cell membrane, the object labeled (D)is

Which of the following is NOT a function of glycerophospholipids?

Which statement is NOT true?

The structure is that of ______ acid.

In the fluid-mosaic model that describes plasma membranes,

Margarine containing partially hydrogenated soybean oil is solid because

Answer the question(s)that follow about the diagram shown below. -In the lipid bilayer of a cell membrane,

Synthesis of cholesterol and bile salts takes place in the

Choose he satrated fatty acid from the compounds below

Which of the following is a polyunsaturated fat?

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