Question 1

You would expect a peptide bond to link

Accepted Answer

A)   two simple sugars.
B)   two amino acids.
C)   two nucleotides.
D)   a sugar and a peptide.
E)   a peptide and a fatty acid.F) B) and E)
G) All of the above

Question 2

Each amino acid differs from another in the

Accepted Answer

A)   number of central carbon atoms.
B)   size of the amino group.
C)   number of carboxyl groups.
D)   nature of the side chain.
E)   number of peptide bonds in the molecule.F) A) and C)
G) A) and E)

Question 3

Compare and contrast ionic and covalent bonds.

Accepted Answer

An ionic bond is when one molecule loses...

Question 4

Elements that have atoms with full outer shells of electrons

Accepted Answer

A)   will form many compounds.
B)   will normally form anions.
C)   will normally form cations.
D)   frequently form hydrogen bonds.
E)   are inert gases.F) B) and E)
G) A) and B)

Question 5

In an aqueous solution, sodium ions would move toward

Accepted Answer

A)   a negative terminal.
B)   a positive terminal.
C)   a pH terminal.
D)   an organic terminal.
E)   the bottom.F) A) and B)
G) B) and E)

Question 6

Each of the following is an example of an inorganic compound, except

Accepted Answer

A)   water.
B)   acids.
C)   bases.
D)   salts.
E)   proteinsF) A) and D)
G) C) and D) E

Question 7

By weight, which element is the second most abundant in the human body?

Accepted Answer

A)   oxygen
B)   carbon
C)   hydrogen
D)   nitrogen
E)   calciumF) D) and E)
G) B) and D)

Question 8

In an aqueous solution, cations are attracted toward

Accepted Answer

A)   water.
B)   salt.
C)   buffers.
D)   anions.
E)   hydrogen ions.F) B) and D)
G) All of the above

Question 9

The molecule CO₂ is known as

Accepted Answer

A)   carbonized oxygen.
B)   carbonated oxygen.
C)   carbon monoxide.
D)   carbon oxide.
E)   carbon dioxide.F) B) and D)
G) A) and B)

Question 10

The pyrimidine bases found in DNA are ________ and ________.

Accepted Answer

The answer of The pyrimidine bases found in DNA are...

Question 11

Kinetic energy is stored as ________ energy when a spring is stretched.

Accepted Answer

The answer of Kinetic energy is stored as ________ energy...

Question 12

An amino acid is to a protein as ________ is to a nucleic acid.

Accepted Answer

A)   a purine
B)   a nucleotide
C)   a protein
D)   a proton
E)   a neutronF) A) and E)
G) B) and E) B

Question 13

________ are soluble inorganic compounds whose solutions will conduct an electric current.

Accepted Answer

The answer of ________ are soluble inorganic compounds whose solutions...

Question 14

The smallest stable units of matter are

Accepted Answer

A)   atoms.
B)   molecules.
C)   protons.
D)   neutrons.
E)   electrons.F) A) and E)
G) B) and D)

Question 15

By weight, which element is the most plentiful in the human body?

Accepted Answer

A)   sulfur
B)   sodium
C)   oxygen
D)   potassium
E)   carbonF) B) and D)
G) A) and B)

Question 16

Of the following choices, the pH of the least acidic solution is

Accepted Answer

A)   6.0.
B)   4.5.
C)   2.3.
D)   1.0.
E)   12.0.F) C) and D)
G) B) and E) E

Question 17

When two monosaccharides undergo a dehydration synthesis,

Accepted Answer

A)   two new monosaccharides are formed.
B)   a disaccharide is formed.
C)   a polysaccharide is formed.
D)   a starch is formed.
E)   all of the aboveF) B) and E)
G) B) and C)

Question 18

Molecules that store and process genetic information are the

Accepted Answer

A)   proteins.
B)   nucleic acids.
C)   carbohydrates.
D)   lipids.
E)   steroids.F) None of the above
G) D) and E)

Question 19

The weakest bond between two atoms is the ________ bond.

Accepted Answer

A)   ionic
B)   covalent
C)   polar
D)   nonpolar
E)   hydrogenF) B) and D)
G) B) and E)

Question 20

If an element is composed of atoms with an atomic number of 6 and a mass number of 14, then the nucleus of a neutral atom of this element contains

Accepted Answer

A)   6 protons.
B)   8 electrons.
C)   8 neutrons.
D)   6 protons and 8 electrons.
E)   6 protons and 8 neutrons.F) A) and D)
G) C) and D)

Exam 2: Chemical Level of Organization

You would expect a peptide bond to link

Correct AnswerverifiedShow Answer

Each amino acid differs from another in the

Correct AnswerverifiedShow Answer

Compare and contrast ionic and covalent bonds.

Correct AnswerverifiedAn ionic bond is when one molecule loses...View AnswerShow Answer

Elements that have atoms with full outer shells of electrons

Correct AnswerverifiedShow Answer

In an aqueous solution, sodium ions would move toward

Correct AnswerverifiedShow Answer

Each of the following is an example of an inorganic compound, except

Correct AnswerverifiedE

By weight, which element is the second most abundant in the human body?

Correct AnswerverifiedShow Answer

In an aqueous solution, cations are attracted toward

Correct AnswerverifiedShow Answer

The molecule CO₂ is known as

Correct AnswerverifiedShow Answer

The pyrimidine bases found in DNA are ________ and ________.

Correct AnswerverifiedShow Answer

Kinetic energy is stored as ________ energy when a spring is stretched.

Correct AnswerverifiedShow Answer

An amino acid is to a protein as ________ is to a nucleic acid.

Correct AnswerverifiedB

________ are soluble inorganic compounds whose solutions will conduct an electric current.

Correct AnswerverifiedShow Answer

The smallest stable units of matter are

Correct AnswerverifiedShow Answer

By weight, which element is the most plentiful in the human body?

Correct AnswerverifiedShow Answer

Of the following choices, the pH of the least acidic solution is

Correct AnswerverifiedE

When two monosaccharides undergo a dehydration synthesis,

Correct AnswerverifiedShow Answer

Molecules that store and process genetic information are the

Correct AnswerverifiedShow Answer

The weakest bond between two atoms is the ________ bond.

Correct AnswerverifiedShow Answer

If an element is composed of atoms with an atomic number of 6 and a mass number of 14, then the nucleus of a neutral atom of this element contains

Correct AnswerverifiedShow Answer

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An ionic bond is when one molecule loses...
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E

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The pyrimidine bases found in DNA are and .

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B

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E

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