Question 1

The numbers listed represent the number of electrons in the first,second,and third energy levels,respectively.On this basis,which of the following is an unstable or reactive atom?

Accepted Answer

A)   2
B)   2, 8
C)   2, 8, 1
D)   2, 8, 8E) B) and D)
F) B) and C)

Question 2

An acid with a pH of 6 has ________ hydrogen ions than pure water.

Accepted Answer

A)   100-fold fewer
B)   10-fold more
C)   10-fold fewer
D)   100-fold moreE) A) and C)
F) A) and D)

Question 3

Covalent bonds are generally less stable than ionic bonds.

Accepted Answer

A) True 
 B)False

Question 4

Omega-3 fatty acids appear to decrease the risk of heart disease.

Accepted Answer

A) True 
 B)False

Question 5

Glycogen,the storage form of glucose,is primarily stored in skeletal muscle and liver cells.

Accepted Answer

A) True 
 B)False

Question 6

The pH of body fluids must remain fairly constant for the body to maintain homeostasis.

Accepted Answer

A) True 
 B)False

Question 7

Match the following:
-Energy that travels in waves.Part of the electromagnetic spectrum.

Accepted Answer

A)  Mechanical energy
B)  Chemical energy
C)  Electrical energy
D)  Radiant energyE) None of the above
F) All of the above

Question 8

Buffers resist abrupt and large changes in the pH of body fluids by releasing or binding ions.

Accepted Answer

A) True 
 B)False

Question 9

How can phospholipids form a film when mixed in water?

Accepted Answer

Phospholipids have both polar ...

Question 10

The fact that no chemical bonding occurs between the components of a mixture is the chief difference between mixtures and compounds.

Accepted Answer

A) True 
 B)False

Question 11

Match the following particles to the correct description:
-Neutral subatomic particle.

Accepted Answer

A)  Atom
B)  Nuetron
C)  Cation
D)  MoleculeE) A) and D)
F) All of the above

Question 12

Forming glycogen as energy storage in the liver is an example of ________.

Accepted Answer

A)   exergonic
B)   anabolism
C)   catabolism
D)   oxidationE) A) and D)
F) B) and D)

Question 13

Match the following:
-Water.

Accepted Answer

A)  Compound
B)  Mixture
C)  ElementD) None of the above
E) A) and C)

Question 14

Figure 2.1
Using Figure 2.1, match the following:
-Tertiary (protein) structure.

Accepted Answer

A)  C
B)  B
C)  E
D)  D
E)  AF) A) and B)
G) A) and C)

Question 15

The single most abundant protein in the body is ________.

Accepted Answer

A)   hemoglobin
B)   collagen
C)   DNA
D)   glucoseE) B) and D)
F) C) and D)

Question 16

What is a dipole?

Accepted Answer

A)   a polar molecule
B)   an organic molecule
C)   a type of reaction
D)   a type of bondE) None of the above
F) A) and B)

Question 17

Figure 2.1
Using Figure 2.1, match the following:
-Polysaccharide.

Accepted Answer

A)  C
B)  B
C)  E
D)  D
E)  AF) None of the above
G) A) and E)

Question 18

Match the following:
-Blood.

Accepted Answer

A)  Compound
B)  Mixture
C)  ElementD) A) and B)
E) None of the above

Question 19

Which of the following is chemically inert (unreactive) ?

Accepted Answer

A)   carbon (atomic number 6) 
B)   oxygen (atomic number 8) 
C)   neon (atomic number 10) 
D)   sodium (atomic number 11) E) A) and B)
F) A) and C)

Question 20

What is a chain of more than 50 amino acids called?

Accepted Answer

A)   protein
B)   triglyceride
C)   nucleic acid
D)   polysaccharideE) A) and C)
F) All of the above

Exam 2: Chemistry Comes Alive

How can phospholipids form a film when mixed in water?

Correct AnswerverifiedPhospholipids have both polar ...View AnswerShow Answer

What is a dipole?

Correct AnswerverifiedShow Answer

An acid with a pH of 6 has ________ hydrogen ions than pure water.

Correct AnswerverifiedShow Answer

Which of the following is chemically inert (unreactive) ?

Correct AnswerverifiedShow Answer

Forming glycogen as energy storage in the liver is an example of ________.

Correct AnswerverifiedShow Answer

The pH of body fluids must remain fairly constant for the body to maintain homeostasis.

Correct AnswerverifiedShow Answer

The single most abundant protein in the body is ________.

Correct AnswerverifiedShow Answer

Figure 2.1 Using Figure 2.1, match the following: -Tertiary (protein) structure.

Correct AnswerverifiedShow Answer

Figure 2.1 Using Figure 2.1, match the following: -Polysaccharide.

Correct AnswerverifiedShow Answer

The fact that no chemical bonding occurs between the components of a mixture is the chief difference between mixtures and compounds.

Correct AnswerverifiedShow Answer

Buffers resist abrupt and large changes in the pH of body fluids by releasing or binding ions.

Correct AnswerverifiedShow Answer

Match the following: -Blood.

Correct AnswerverifiedShow Answer

Match the following: -Energy that travels in waves.Part of the electromagnetic spectrum.

Correct AnswerverifiedShow Answer

Match the following particles to the correct description: -Neutral subatomic particle.

Correct AnswerverifiedShow Answer

Match the following: -Water.

Correct AnswerverifiedShow Answer

Omega-3 fatty acids appear to decrease the risk of heart disease.

Correct AnswerverifiedShow Answer

Glycogen,the storage form of glucose,is primarily stored in skeletal muscle and liver cells.

Correct AnswerverifiedShow Answer

Covalent bonds are generally less stable than ionic bonds.

Correct AnswerverifiedShow Answer

The numbers listed represent the number of electrons in the first,second,and third energy levels,respectively.On this basis,which of the following is an unstable or reactive atom?

Correct AnswerverifiedShow Answer

What is a chain of more than 50 amino acids called?

Correct AnswerverifiedShow Answer

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Phospholipids have both polar ...
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