Question 1

The form of carbohydrate our bodies use to store reserve energy is _____.

Accepted Answer

A)  disaccharides
B)  starches
C)  glycogen
D)  glucoseE) B) and C)
F) A) and D)

Question 2

The number of protons plus the number of neutrons determines the __________ of an atom.

Accepted Answer

A)  isotope
B)  valence electrons
C)  atomic number
D)  atomic massE) B) and C)
F) All of the above

Question 3

On the typical pH scale, a pH of ____ indicates the lowest concentration of hydrogen ions, whereas a pH of ____ indicates the highest concentration of H+.

Accepted Answer

A)  0; 14
B)  7; 14
C)  14; 0
D)  0; 7E) B) and C)
F) A) and D)

Question 4

A chemical formula expresses

Accepted Answer

A)  the chemical composition of a molecule.
B)  the number of atoms for each element in the molecule.
C)  the atoms involved in chemical bonding.
D)  all of these choices are correctE) C) and D)
F) A) and B)

Question 5

Anything that has weight and occupies space can be described as

Accepted Answer

A)  an atom.
B)  matter.
C)  a compound.
D)  a molecule.E) B) and C)
F) A) and D)

Question 6

Which of the following is NOT an example of a lipid?

Accepted Answer

A)  fats.
B)  amino acids.
C)  steroids.
D)  phospholipids.E) None of the above
F) All of the above

Question 7

What type of reaction is shown? A + B  →\rightarrow→  AB

Accepted Answer

A)  synthesis
B)  decomposition
C)  exchange
D)  reversible E) C) and D)
F) B) and D)

Question 8

A substance that cannot be broken down into a simpler substance by chemical means is a/an

Accepted Answer

A)  element.
B)  compound.
C)  molecule.
D)  nucleic acid.E) B) and C)
F) B) and D)

Question 9

Two or more atoms of the SAME element combine to form a(n)  _____.

Accepted Answer

A)  isotope
B)  compound
C)  molecule
D)  ionE) A) and C)
F) None of the above

Question 10

An ionic bond forms between

Accepted Answer

A)  a cation and another cation.
B)  a cation and an anion.
C)  an anion and another anion.
D)  all of the above.E) A) and D)
F) None of the above

Question 11

A monounsaturated fat would have

Accepted Answer

A)  one carbon-carbon double bond in a fatty acid tail.
B)  two fatty acid tails and a phosphate group.
C)  two carbon-carbon double bonds in its fatty acid tails.
D)  four carbon rings.E) B) and D)
F) None of the above

Question 12

The name for the covalent bond between two amino acids is termed

Accepted Answer

A)  protein bond.
B)  ionic bond.
C)  enzyme bond.
D)  peptide bond.E) A) and B)
F) None of the above

Question 13

How does a buffer help a solution maintain pH?

Accepted Answer

A)  A buffer can act like a base if pH is acidic, and it can act like an acid if pH is basic.
B)  A buffer forms both cations and anions to counteract acids.
C)  A buffer release base to neutralize acid.
D)  A buffer releases acid to maintain proper pH.E) None of the above
F) A) and C)

Question 14

When the body has excess energy and builds molecules to store it, which molecule do we build MOST?

Accepted Answer

A)  Glycogen
B)  Glucose
C)  Triglycerides
D)  CholesterolE) B) and C)
F) A) and B)

Question 15

What is the most abundant substance in the human body?

Accepted Answer

A)  hydrogen
B)  carbon
C)  glucose
D)  waterE) A) and B)
F) A) and C)

Exam 2: Chemical Aspects of Life

Anything that has weight and occupies space can be described as

Correct Answer
verified

An ionic bond forms between

Correct Answer
verified

A substance that cannot be broken down into a simpler substance by chemical means is a/an

Correct Answer
verified

Which of the following is NOT an example of a lipid?

Correct Answer
verified

A chemical formula expresses

Correct Answer
verified

The form of carbohydrate our bodies use to store reserve energy is _____.

Correct Answer
verified

When the body has excess energy and builds molecules to store it, which molecule do we build MOST?

Correct Answer
verified

What is the most abundant substance in the human body?

Correct Answer
verified

How does a buffer help a solution maintain pH?

Correct Answer
verified

What type of reaction is shown? A + B $\rightarrow$ AB

Correct Answer
verified

On the typical pH scale, a pH of indicates the lowest concentration of hydrogen ions, whereas a pH of indicates the highest concentration of H⁺.

Correct Answer
verified

The number of protons plus the number of neutrons determines the __________ of an atom.

Correct Answer
verified

The name for the covalent bond between two amino acids is termed

Correct Answer
verified

A monounsaturated fat would have

Correct Answer
verified

Two or more atoms of the SAME element combine to form a(n) _____.

Correct Answer
verified

Exam 2: Chemical Aspects of Life

Anything that has weight and occupies space can be described as

Correct AnswerverifiedShow Answer

An ionic bond forms between

Correct AnswerverifiedShow Answer

A substance that cannot be broken down into a simpler substance by chemical means is a/an

Correct AnswerverifiedShow Answer

Which of the following is NOT an example of a lipid?

Correct AnswerverifiedShow Answer

A chemical formula expresses

Correct AnswerverifiedShow Answer

The form of carbohydrate our bodies use to store reserve energy is _____.

Correct AnswerverifiedShow Answer

When the body has excess energy and builds molecules to store it, which molecule do we build MOST?

Correct AnswerverifiedShow Answer

What is the most abundant substance in the human body?

Correct AnswerverifiedShow Answer

How does a buffer help a solution maintain pH?

Correct AnswerverifiedShow Answer

What type of reaction is shown? A + B →\rightarrow→ AB

Correct AnswerverifiedShow Answer

On the typical pH scale, a pH of ____ indicates the lowest concentration of hydrogen ions, whereas a pH of ____ indicates the highest concentration of H+.

Correct AnswerverifiedShow Answer

The number of protons plus the number of neutrons determines the __________ of an atom.

Correct AnswerverifiedShow Answer

The name for the covalent bond between two amino acids is termed

Correct AnswerverifiedShow Answer

A monounsaturated fat would have

Correct AnswerverifiedShow Answer

Two or more atoms of the SAME element combine to form a(n) _____.

Correct AnswerverifiedShow Answer

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What type of reaction is shown? A + B $\rightarrow$ AB

Correct Answer
verified

On the typical pH scale, a pH of indicates the lowest concentration of hydrogen ions, whereas a pH of indicates the highest concentration of H⁺.

Correct Answer
verified

Correct Answer
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Correct Answer
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