Question 1

A molecule is said to be organic if it contains

Accepted Answer

A)   double bonds.
B)   hydrogen bonds.
C)   carbon and hydrogen atoms.
D)   carbon and oxygen atoms.
E)   two or more atoms.F) A) and C)
G) A) and B)

Question 2

Which nitrogen containing base is found in DNA but not in RNA?

Accepted Answer

A)   guanine
B)   thymine
C)   cytosine
D)   adenine
E)   uracilF) C) and D)
G) A) and E)

Question 3

The basic building block or subunit of many biological molecules is called a

Accepted Answer

A)   quaternary structure.
B)   polymer.
C)   monomer.
D)   isomer.
E)   chain.F) C) and D)
G) B) and E)

Question 4

Which one of the following is NOT a potential danger of anabolic steroids?

Accepted Answer

A)   can result in liver problems
B)   can enhance the body's production of normal sex hormones
C)   can cause mood swings and depression
D)   can reduce sex drive
E)   can result in heart problemsF) A) and E)
G) C) and E)

Question 5

Which formula is a hydrocarbon?

Accepted Answer

A)   CO?2
B)   CH4
C)   NaCl
D)   CaCl2
E)   H2OF) A) and D)
G) A) and C)

Question 6

A fatty acid that has at least two double bonds is called

Accepted Answer

A)   steroid.
B)   cholesterol.
C)   unsaturated.
D)   abonded.
E)   organic.F) B) and E)
G) A) and D)

Question 7

Which of the following correctly lists the parts of a nucleotide of RNA?

Accepted Answer

A)   nitrogen-containing base, deoxyribose, phosphate
B)   sulfur-containing base, ribose, phosphate
C)   nitrogen-containing base, ribose, phosphate
D)   nitrogen-containing base, ribose, sulfur
E)   amino acid, glycerol, nitrogen-containing baseF) A) and E)
G) A) and C) C

Question 8

The principle role for sugars in living things is

Accepted Answer

A)   to form cell membranes.
B)   to serve as a form of energy storage.
C)   to create our genetic code.
D)   for creating energy.
E)   to produce hormones.F) C) and E)
G) None of the above

Question 9

Which of the following is not an organic molecule?

Accepted Answer

A)   C12H9SO3H
B)   C9H13NO3
C)   C10H13N5O4
D)   H2NCH2CN
E)   COCl2F) A) and C)
G) A) and E)

Question 10

The term "functional" is used in the phrase "functional group" because it describes a group of atoms

Accepted Answer

A)   that are organic.
B)   that make the entire molecule hydrophobic.
C)   that prevent interaction with other molecules.
D)   that react a certain way with other molecules.
E)   that make the entire molecule hydrophilic.F) C) and D)
G) A) and E)

Question 11

Which of the following elements would be found in a carbohydrate?

Accepted Answer

A)   C, H
B)   C, H, O
C)   C, H, O, P
D)   C, H, O, N
E)   C, H, Cl, OF) A) and E)
G) B) and E) B

Question 12

The shape of a protein is a critical factor in its function.

Accepted Answer

A) True 
 B)False

Question 13

Refer to the figure.Which of the following is true regarding the labeled plasma membrane?

Accepted Answer

A)   Parts X and Z are hydrophobic.
B)   Parts W and Z are hydrophilic.
C)   Parts X and Y are hydrophilic.
D)   Parts W and Y are hydrophobic.
E)   Parts W and X are hydrophilic.F) B) and D)
G) B) and C)

Question 14

Amino acids are seen in ______ as _______ are needed to create DNA.

Accepted Answer

A)   protein; nucleotide
B)   fatty acid; hydroxides
C)   polysaccharide; carboxyl
D)   RNA; glucose
E)   fats; sugarsF) D) and E)
G) B) and C)

Question 15

In the diagram below,the monomer that serves as the subunit to creating this organic molecule category is called

Accepted Answer

A)   nucleotide.
B)   phosphate.
C)   sugar.
D)   base.
E)   glucose.F) A) and D)
G) A) and B)

Question 16

Select the INCORRECT association:

Accepted Answer

A)   carbohydrates ......used by the body for energy
B)   lipids.....serve to insulate, protect, and store energy
C)   proteins.....have 3 forms: monosaccharides, disaccharides, and polysaccharides
D)   nucleic acids.....include DNA and RNA which control our genetic inheritance
E)   carbohydrates.....include examples such as glucose, sucrose and starchF) A) and D)
G) A) and C)

Question 17

ATP is a molecule used for energy transport inside the cell.The components of it are a nitrogen containing base,a pentose sugar and three phosphate groups.Given this structure it is a(n)

Accepted Answer

A)   amino acid.
B)   carbohydrate.
C)   lipid.
D)   nucleic acid.
E)   protein.F) A) and D)
G) C) and E) D

Question 18

Which of the following levels of protein folding would include shapes identified as helix and pleated sheet?

Accepted Answer

A)   primary structure
B)   secondary structure
C)   tertiary structure
D)   quaternary structureE) None of the above
F) A) and D)

Question 19

A starch molecule is to glucose as

Accepted Answer

A)   a protein is to a polypeptide.
B)   DNA is to an amino acid.
C)   a lipid is to nucleic acid.
D)   a protein is to an amino acid.
E)   fatty acid is to a fat.F) A) and E)
G) A) and D)

Question 20

Testosterone is a lipid-based hormone; insulin is a ______-based hormone.

Accepted Answer

A)   saccharide
B)   protein
C)   steroid
D)   carbohydrate
E)   nucleic acidF) A) and E)
G) A) and B)

Exam 3: The Organic Molecules of Life

A molecule is said to be organic if it contains

Correct AnswerverifiedShow Answer

Which nitrogen containing base is found in DNA but not in RNA?

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The basic building block or subunit of many biological molecules is called a

Correct AnswerverifiedShow Answer

Which one of the following is NOT a potential danger of anabolic steroids?

Correct AnswerverifiedShow Answer

Which formula is a hydrocarbon?

Correct AnswerverifiedShow Answer

A fatty acid that has at least two double bonds is called

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Which of the following correctly lists the parts of a nucleotide of RNA?

Correct AnswerverifiedC

The principle role for sugars in living things is

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Which of the following is not an organic molecule?

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The term "functional" is used in the phrase "functional group" because it describes a group of atoms

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Which of the following elements would be found in a carbohydrate?

Correct AnswerverifiedB

The shape of a protein is a critical factor in its function.

Correct AnswerverifiedShow Answer

Refer to the figure.Which of the following is true regarding the labeled plasma membrane?

Correct AnswerverifiedShow Answer

Amino acids are seen in ______ as _______ are needed to create DNA.

Correct AnswerverifiedShow Answer

In the diagram below,the monomer that serves as the subunit to creating this organic molecule category is called

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Select the INCORRECT association:

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ATP is a molecule used for energy transport inside the cell.The components of it are a nitrogen containing base,a pentose sugar and three phosphate groups.Given this structure it is a(n)

Correct AnswerverifiedD

Which of the following levels of protein folding would include shapes identified as helix and pleated sheet?

Correct AnswerverifiedShow Answer

A starch molecule is to glucose as

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Testosterone is a lipid-based hormone; insulin is a ______-based hormone.

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C

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B

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Amino acids are seen in as _ are needed to create DNA.

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D

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