Question 1

The primary level of protein structure is composed of amino acids in a linear sequence joined by peptide bonds.

Accepted Answer

A) True 
 B)False

Question 2

A hydrolysis reaction involves the loss of water.

Accepted Answer

A) True 
 B)False  False

Question 3

The main function of carbohydrates is for long-term energy storage.

Accepted Answer

A) True 
 B)False

Question 4

ATP is called the energy currency of the body because it is a type of electricity.

Accepted Answer

A) True 
 B)False

Question 5

All amino acids are alike in that their R groups are polar.

Accepted Answer

A) True 
 B)False

Question 6

After lunch our digestive system will use the process of hydrolysis to break the food down into smaller subunits.

Accepted Answer

A) True 
 B)False

Question 7

Which polysacccharide is stored as an energy source in the body of animals?

Accepted Answer

A)   glycogen
B)   glucose
C)   cellulose
D)   starch
E)   chitinF) D) and E)
G) A) and B) A

Question 8

Which polysaccharide is consumed as a source of fiber?

Accepted Answer

A)   cellulose
B)   glycogen
C)   glucose
D)   chitin
E)   starchF) A) and C)
G) A) and D)

Question 9

The sides of the DNA ladder (backbone)  are

Accepted Answer

A)   alternating carbons and nitrogens.
B)   the R groups.
C)   the nitrogenous bases.
D)   alternating nitrogens and phosphates.
E)   sugars and phosphates.F) A) and E)
G) A) and C)

Question 10

In an atom, the number of protons always equals the number

Accepted Answer

A)   of electrons.
B)   of neutrons.
C)   of neutrons and protons.
D)   of quarks.
E)   of neutrinos.F) A) and E)
G) A) and C) A

Question 11

Which of the following is not a function of proteins?

Accepted Answer

A)   quick energy
B)   support
C)   transport
D)   enzymes
E)   motionF) A) and B)
G) B) and E)

Question 12

ATP carries energy in the form of high-energy

Accepted Answer

A)   carbohydrate bonds.
B)   peptide bonds.
C)   lipid bonds.
D)   phosphate bonds.
E)   hydrogen bondsF) A) and E)
G) C) and D)

Question 13

A solution with a pH of 7 has 10 times as many H+ as a pH of 6.

Accepted Answer

A) True 
 B)False

Question 14

Carbon dating is a common method employed in dating certain kinds of fossils. It is based upon the radioactive decay of an isotope of carbon (C14) . Referring to the atomic number of carbon attained from the periodic table, how many neutrons does C14 have?

Accepted Answer

A)   2
B)   4
C)   8
D)   12
E)   14F) A) and B)
G) B) and E)

Question 15

An element cannot be broken down by chemical means.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following nitrogenous bases is NOT found in DNA?

Accepted Answer

A)   cytosine
B)   thymine
C)   uracil
D)   guanine
E)   adenineF) A) and D)
G) A) and E)

Question 17

An alpha helix or a beta sheet are examples of what level of protein structure?

Accepted Answer

A)   secondary
B)   primary
C)   tertiary
D)   quaternary
E)   octagonF) B) and D)
G) A) and C)

Question 18

Which of the following is not one of the four classes of organic molecules found in cells?

Accepted Answer

A)   vitamins
B)   lipids
C)   proteins
D)   carbohydrates
E)   nucleic acidsF) A) and C)
G) None of the above

Question 19

Which of the following elements will have more than 2 electrons and have a full outer orbital?

Accepted Answer

A)   He
B)   Ne
C)   C
D)   N
E)   OF) All of the above
G) A) and B)

Question 20

Atoms that share electrons have what type of bonds?

Accepted Answer

A)   covalent
B)   neutral
C)   hydrogen
D)   colloidal
E)   ionicF) C) and D)
G) A) and E)

Exam 2: Chemistry of Life

The primary level of protein structure is composed of amino acids in a linear sequence joined by peptide bonds.

Correct AnswerverifiedShow Answer

A hydrolysis reaction involves the loss of water.

Correct AnswerverifiedFalse

The main function of carbohydrates is for long-term energy storage.

Correct AnswerverifiedShow Answer

ATP is called the energy currency of the body because it is a type of electricity.

Correct AnswerverifiedShow Answer

All amino acids are alike in that their R groups are polar.

Correct AnswerverifiedShow Answer

After lunch our digestive system will use the process of hydrolysis to break the food down into smaller subunits.

Correct AnswerverifiedShow Answer

Which polysacccharide is stored as an energy source in the body of animals?

Correct AnswerverifiedA

Which polysaccharide is consumed as a source of fiber?

Correct AnswerverifiedShow Answer

The sides of the DNA ladder (backbone) are

Correct AnswerverifiedShow Answer

In an atom, the number of protons always equals the number

Correct AnswerverifiedA

Which of the following is not a function of proteins?

Correct AnswerverifiedShow Answer

ATP carries energy in the form of high-energy

Correct AnswerverifiedShow Answer

A solution with a pH of 7 has 10 times as many H+ as a pH of 6.

Correct AnswerverifiedShow Answer

Carbon dating is a common method employed in dating certain kinds of fossils. It is based upon the radioactive decay of an isotope of carbon (C14) . Referring to the atomic number of carbon attained from the periodic table, how many neutrons does C14 have?

Correct AnswerverifiedShow Answer

An element cannot be broken down by chemical means.

Correct AnswerverifiedShow Answer

Which of the following nitrogenous bases is NOT found in DNA?

Correct AnswerverifiedShow Answer

An alpha helix or a beta sheet are examples of what level of protein structure?

Correct AnswerverifiedShow Answer

Which of the following is not one of the four classes of organic molecules found in cells?

Correct AnswerverifiedShow Answer

Which of the following elements will have more than 2 electrons and have a full outer orbital?

Correct AnswerverifiedShow Answer

Atoms that share electrons have what type of bonds?

Correct AnswerverifiedShow Answer

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False

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A

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A

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A solution with a pH of 7 has 10 times as many H⁺ as a pH of 6.

Correct Answer
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Carbon dating is a common method employed in dating certain kinds of fossils. It is based upon the radioactive decay of an isotope of carbon (C¹⁴) . Referring to the atomic number of carbon attained from the periodic table, how many neutrons does C¹⁴ have?

Correct Answer
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