Question 1

An organic molecule's chemical function is controlled by

Accepted Answer

A)  molecular shape. 
B)  molecular size. 
C)  molecular age. 
D)  molecular shape, size, and age. 
E)  none of these answers 
A)  molecular shape. 
B)  molecular size. 
C)  molecular age. 
D)  molecular shape, size, and age. 
E)  none of these answers

Question 2

The most complex shape of a protein is the

Accepted Answer

A)  primary. 
B)  quaternary. 
C)  tertiary. 
D)  secondary. 
E)  triadic. 
A)  primary. 
B)  quaternary. 
C)  tertiary. 
D)  secondary. 
E)  triadic.

Question 3

Why is the structure of a phospholipid so important to the cell?

Accepted Answer

Phospholipids have a hydrophobic end and

Question 4

What is the difference in foods with high-quality versus low quality proteins? Give examples.

Accepted Answer

Foods with high-quality proteins supply

Question 5

Which is true for all the organic molecules?

Accepted Answer

A)  modular in structure 
B)  formed from few elements 
C)  carbon-based 
D)  controlled by geometry 
E)  all of these are correct 
A)  modular in structure 
B)  formed from few elements 
C)  carbon-based 
D)  controlled by geometry 
E)  all of these are correct

Question 6

Discuss the process and effect of hydrogenation of polyunsaturated food products.

Accepted Answer

Polyunsaturated foods are lipids with tw

Question 7

Which of the following is not an example of a polysaccharide?

Accepted Answer

A)  starch 
B)  wood 
C)  potatoes 
D)  C6H12O6 
E)  celery 
A)  starch 
B)  wood 
C)  potatoes 
D)  C6H12O6 
E)  celery

Question 8

What do hamburger, corn, pollen, and eyelashes have in common?

Accepted Answer

A)  They all contain carbon, hydrogen, oxygen and nitrogen atoms. 
B)  They all are composed of a modular molecular structure. 
C)  They all are a result of a unique combination of molecule shapes. 
D)  The dominant element in each item is carbon. 
E)  All of these are correct. 
A)  They all contain carbon, hydrogen, oxygen and nitrogen atoms. 
B)  They all are composed of a modular molecular structure. 
C)  They all are a result of a unique combination of molecule shapes. 
D)  The dominant element in each item is carbon. 
E)  All of these are correct.

Question 9

Explain what is meant by the statement "The molecules of life are modular and geometrical."

Accepted Answer

Any complex structure found in nature or

Question 10

Compare and contrast the functions of proteins and enzymes in metabolic pathways.

Accepted Answer

Answers will vary, but while p

Question 11

Why is the nutritional disease scurvy so rare today?

Accepted Answer

In the modern world, foods are

Question 12

Which of the following is not an example of a lipid?

Accepted Answer

A)  candle wax 
B)  hair 
C)  petroleum jelly 
D)  cell membrane 
E)  butter 
A)  candle wax 
B)  hair 
C)  petroleum jelly 
D)  cell membrane 
E)  butter

Question 13

Designer drugs

Accepted Answer

A)  are illegal. 
B)  were created to decrease the calories in foods. 
C)  include aspirin. 
D)  have been developed to treat hypertension. 
E)  Two of these are true. 
A)  are illegal. 
B)  were created to decrease the calories in foods. 
C)  include aspirin. 
D)  have been developed to treat hypertension. 
E)  Two of these are true.

Question 14

Describe the primary and secondary structures of amino acids.

Accepted Answer

The primary structure is the simplest of

Question 15

Why are British sailors called "limeys"?

Accepted Answer

The disease scurvy, which causes degener

Question 16

How does the shape of the protein impact the cell's chemistry?

Accepted Answer

The variable shapes of protein molecules

Question 17

The tertiary structure of protein is

Accepted Answer

A)  a unique sequence of amino acids for each protein. 
B)  another name for the initial shape of the molecule. 
C)  what determines the color change in cooked egg white. 
D)  a twisting, curving, turning, folding and kinking of the protein molecule. 
E)  the joining of two or more long protein chains. 
A)  a unique sequence of amino acids for each protein. 
B)  another name for the initial shape of the molecule. 
C)  what determines the color change in cooked egg white. 
D)  a twisting, curving, turning, folding and kinking of the protein molecule. 
E)  the joining of two or more long protein chains.

Question 18

Which of the following is a protein molecule that facilitates chemical reactions between two other molecules?

Accepted Answer

A)  amino acid 
B)  enzyme 
C)  hydrogen bond 
D)  lipid 
E)  vitamin 
A)  amino acid 
B)  enzyme 
C)  hydrogen bond 
D)  lipid 
E)  vitamin

Question 19

What are vitamins and which are soluble and non-soluble? Humans have to eat most vitamins, but one is made within the body - which one is that?

Accepted Answer

Vitamins are a group of complex organic

Question 20

If a fat is saturated, then

Accepted Answer

A)  all the possible bonding sites of the hydrogen and carbon atoms are filled. 
B)  the oxygen atoms in the lipid chain are bonded. 
C)  a kink develops between the adjacent carbon atoms. 
D)  it cannot become a component of cholesterol. 
E)  hydrogenation must be used to give the fat a better texture. 
A)  all the possible bonding sites of the hydrogen and carbon atoms are filled. 
B)  the oxygen atoms in the lipid chain are bonded. 
C)  a kink develops between the adjacent carbon atoms. 
D)  it cannot become a component of cholesterol. 
E)  hydrogenation must be used to give the fat a better texture.

Exam 22: Molecules of Life: What Constitutes a Healthy Diet

An organic molecule's chemical function is controlled by

The most complex shape of a protein is the

Why is the structure of a phospholipid so important to the cell?

What is the difference in foods with high-quality versus low quality proteins? Give examples.

Which is true for all the organic molecules?

Discuss the process and effect of hydrogenation of polyunsaturated food products.

Which of the following is not an example of a polysaccharide?

What do hamburger, corn, pollen, and eyelashes have in common?

Explain what is meant by the statement "The molecules of life are modular and geometrical."

Compare and contrast the functions of proteins and enzymes in metabolic pathways.

Why is the nutritional disease scurvy so rare today?

Which of the following is not an example of a lipid?

Designer drugs

Describe the primary and secondary structures of amino acids.

Why are British sailors called "limeys"?

How does the shape of the protein impact the cell's chemistry?

The tertiary structure of protein is

Which of the following is a protein molecule that facilitates chemical reactions between two other molecules?

What are vitamins and which are soluble and non-soluble? Humans have to eat most vitamins, but one is made within the body - which one is that?

If a fat is saturated, then

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