Question 1

RNA is

Accepted Answer

A)  single-stranded and contains thymine.
B)  single-stranded and contains uracil.
C)  double-stranded and contains thymine.
D)  double-stranded and contais uracil.E) B) and D)
F) A) and D)

Question 2

Elements in the first column of the periodic table contain one electron in their outer shell.

Accepted Answer

A) True 
 B)False

Question 3

Oxygen is more electronegative than carbon.

Accepted Answer

A) True 
 B)False

Question 4

ATP is a nucleotide that is composed of

Accepted Answer

A)  adenine,ribose,and three covalently bonded phosphate groups.
B)  adenine,thymine,and three covalently bonded phosphate groups.
C)  adipose,thymine,and three phosphate groups linked by ionic bonds.
D)  adenosine,deoxyribose,and three phosphorous atoms.
E)  arginine,thymidine and three phosphorous atoms.F) A) and E)
G) D) and E)

Question 5

Which list contains all four types of amino acids

Accepted Answer

A)  Ionic,covalent,hydrogen,and van der Waals
B)  Charged,polar,nonpolar,and those with special functions
C)  Glutamate,aspartate,arginine,and thymine
D)  Polar,nonpolar,ionic,and hydrophobicE) A) and C)
F) A) and B)

Question 6

Which statement accurately describes isomers

Accepted Answer

A)  They possess differing numbers of neutrons in their nuclei.
B)  They have the same molecular shape but involve different elements.
C)  They have the same structural formula but different molecular formulas.
D)  They have the same molecular formula but different structural formulas.
E)  They have gained or lost electrons at their outer shell.F) All of the above
G) A) and B)

Question 7

When two or more polypeptide chains come together to give a protein its ultimate shape,that structure is described as the _________ structure.

Accepted Answer

A)  micro-
B)  secondary
C)  quaternary
D)  tertiary
E)  heme groupF) B) and D)
G) A) and B)

Question 8

The three parts making up a nucleotide are

Accepted Answer

A)  a purine,a pyrimidine,and a ribose sugar.
B)  a five-carbon sugar,a phosphate group,and a nitrogenous base.
C)  an adenine,a guanine,and a cytosine.
D)  a double helix,a single strand,and a chromosome.
E)  a phosphorous,a deoxygenated ribose,and an amino acid.F) C) and D)
G) A) and E)

Exam 2: Atoms,Ions,and Molecules

Which list contains all four types of amino acids

Correct Answer
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Which statement accurately describes isomers

Correct Answer
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Oxygen is more electronegative than carbon.

Correct Answer
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When two or more polypeptide chains come together to give a protein its ultimate shape,that structure is described as the _________ structure.

Correct Answer
verified

Elements in the first column of the periodic table contain one electron in their outer shell.

Correct Answer
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ATP is a nucleotide that is composed of

Correct Answer
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The three parts making up a nucleotide are

Correct Answer
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RNA is

Correct Answer
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Exam 2: Atoms,Ions,and Molecules

Which list contains all four types of amino acids

Correct AnswerverifiedShow Answer

Which statement accurately describes isomers

Correct AnswerverifiedShow Answer

Oxygen is more electronegative than carbon.

Correct AnswerverifiedShow Answer

When two or more polypeptide chains come together to give a protein its ultimate shape,that structure is described as the _________ structure.

Correct AnswerverifiedShow Answer

Elements in the first column of the periodic table contain one electron in their outer shell.

Correct AnswerverifiedShow Answer

ATP is a nucleotide that is composed of

Correct AnswerverifiedShow Answer

The three parts making up a nucleotide are

Correct AnswerverifiedShow Answer

RNA is

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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