Question 1

Electrolytes are substances that

Accepted Answer

A)  form covalent bonds with water.
B)  ionize in water.
C)  cannot conduct electricity in solution.
D)  form bonds that are stable in water.E) A) and B)
F) All of the above

Question 2

PET imaging follows the emission of

Accepted Answer

A)  positrons.
B)  electrons.
C)  neutrons.
D)  protons.E) B) and D)
F) None of the above

Question 3

The atoms of the isotopes of a particular element vary in the number of

Accepted Answer

A)  electrons.
B)  protons.
C)  neutrons.
D)  nuclei.E) A) and C)
F) None of the above

Question 4

Chemistry deals with

Accepted Answer

A)  the composition and changes of substances that make up living as well as non-living matter.
B)  the composition and changes of substances found in organisms only.
C)  the composition of and changes of substances that make up non-living matter only.
D)  the location of organs in body cavities.E) All of the above
F) None of the above

Question 5

Proteins denature when

Accepted Answer

A)  bonds between carbon and oxygen break.
B)  hydrogen bonds break.
C)  peptide bonds break.
D)  peptide bonds form.E) B) and D)
F) B) and C)

Question 6

Water is an example of a compound.

Accepted Answer

A) True 
 B)False

Question 7

When cations and anions meet they

Accepted Answer

A)  repel.
B)  form ionic bonds.
C)  form covalent bonds.
D)  form individual molecules.E) A) and B)
F) A) and C)

Question 8

A person with alkalosis has a blood pH less than 7.3.

Accepted Answer

A) True 
 B)False

Question 9

Chemistry is the study of the composition of matter and how matter changes.

Accepted Answer

A) True 
 B)False

Question 10

Water causes ionically-bonded atoms to

Accepted Answer

A)  bond more strongly.
B)  dissociate.
C)  bond covalently.
D)  decompose.E) A) and D)
F) A) and C)

Question 11

The first electron shell of an atom can hold a maximum of

Accepted Answer

A)  1 electron.
B)  2 electrons.
C)  4 electrons.
D)  8 electrons.E) All of the above
F) A) and B)

Question 12

Electrolytes that release hydrogen ions in water are

Accepted Answer

A)  bases.
B)  nucleotides.
C)  acids.
D)  electrons.E) None of the above
F) A) and B)

Question 13

An organic compound always contains

Accepted Answer

A)  carbon and hydrogen.
B)  oxygen and nitrogen.
C)  carbon and oxygen.
D)  nitrogen and hydrogen.E) A) and C)
F) A) and B)

Question 14

Radioactive isotopes have stable nuclei.

Accepted Answer

A) True 
 B)False

Question 15

The secondary structure of a protein molecule is the result of

Accepted Answer

A)  oxygen double bonds.
B)  covalent bonds.
C)  ionic bonds.
D)  hydrogen bonds.E) C) and D)
F) A) and D)

Question 16

Glycogen is stored in the liver and ______.

Accepted Answer

A)  spleen
B)  skeletal muscles
C)  pancreas
D)  heartE) B) and C)
F) A) and B)

Question 17

Conformation is

Accepted Answer

A)  the three dimensional shape of a molecule,such as a protein.
B)  the energy held in the bonds of an organic molecule,such as a protein.
C)  the ability of DNA to copy itself.
D)  the amino acid sequence (primary structure) of a protein.E) B) and C)
F) A) and C)

Question 18

A complete atom is electrically neutral because the number of

Accepted Answer

A)  protons and neutrons are equal.
B)  electrons and neutrons are equal.
C)  electrons and protons are equal.
D)  electrons is greater than the number of protons.E) B) and C)
F) C) and D)

Question 19

A complex carbohydrate consists of a phosphate group attached to a sugar molecule.

Accepted Answer

A) True 
 B)False

Question 20

Amino acids are building blocks of __________.

Accepted Answer

The answer of Amino acids are building blocks of __________....

Exam 2: Chemical Basis of Life

A complex carbohydrate consists of a phosphate group attached to a sugar molecule.

Correct AnswerverifiedShow Answer

The atoms of the isotopes of a particular element vary in the number of

Correct AnswerverifiedShow Answer

Proteins denature when

Correct AnswerverifiedShow Answer

The secondary structure of a protein molecule is the result of

Correct AnswerverifiedShow Answer

Electrolytes that release hydrogen ions in water are

Correct AnswerverifiedShow Answer

The first electron shell of an atom can hold a maximum of

Correct AnswerverifiedShow Answer

Conformation is

Correct AnswerverifiedShow Answer

Electrolytes are substances that

Correct AnswerverifiedShow Answer

A complete atom is electrically neutral because the number of

Correct AnswerverifiedShow Answer

Water causes ionically-bonded atoms to

Correct AnswerverifiedShow Answer

Amino acids are building blocks of __________.

Correct AnswerverifiedShow Answer

Water is an example of a compound.

Correct AnswerverifiedShow Answer

PET imaging follows the emission of

Correct AnswerverifiedShow Answer

Glycogen is stored in the liver and ______.

Correct AnswerverifiedShow Answer

An organic compound always contains

Correct AnswerverifiedShow Answer

A person with alkalosis has a blood pH less than 7.3.

Correct AnswerverifiedShow Answer

Chemistry is the study of the composition of matter and how matter changes.

Correct AnswerverifiedShow Answer

When cations and anions meet they

Correct AnswerverifiedShow Answer

Chemistry deals with

Correct AnswerverifiedShow Answer

Radioactive isotopes have stable nuclei.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified