Question 1

Polar molecules

Accepted Answer

A)  have an equal charge distribution.
B)  have an unequal charge distribution.
C)  are insoluble in water.
D)  always contain carbon.
E)  always involve oxygen.F) A) and B)
G) B) and E)

Question 2

A new organism was identified that contained arsenic in place of phosphate in its DNA double helix structure.Based upon this information alone,it can be determined that this change will greatly alter the information encoded by this genetic material.

Accepted Answer

A) True 
 B)False

Question 3

Starch is the primary storage food for all of the following except

Accepted Answer

A)  green plants.
B)  algae.
C)  animals.
D)  some fungi.E) All of the above
F) A) and C)

Question 4

Compared to a solution of pH 9,a solution of pH 7:

Accepted Answer

A)  is more basic.
B)  has no OH- ions.
C)  has more H+ ions.
D)  has a higher pH.E) A) and B)
F) None of the above

Question 5

Which of the following represents a synthesis reaction?

Accepted Answer

A)  AB  →\rarr→  A + B
B)  A + B  →\rarr→  AB
C)  AB + XY  →\rarr→  AY + XB.
D)  AB + XY  →\rarr→  AY + XB E) A) and C)
F) A) and D)

Question 6

The building blocks of an enzyme are

Accepted Answer

A)  nucleotides.
B)  glycerol and fatty acids.
C)  monosaccharides.
D)  phosphate,glycerol,and fatty acids.
E)  amino acids.F) B) and D)
G) A) and B)

Question 7

What is the maximum number of electrons in the second energy shell of an atom?

Accepted Answer

A)  2
B)  4
C)  8
D)  18
E)  32F) None of the above
G) A) and C)

Question 8

Viruses are not considered living organisms because they lack cellular structure and require a host cell for life cycle completion.

Accepted Answer

A) True 
 B)False

Question 9

What part of a phospholipid comprise the hydrophobic tails?

Accepted Answer

A)  fatty acids
B)  glycerol
C)  phosphate
D)  alcohol
E)  hydroxyl.F) B) and E)
G) All of the above

Question 10

A capillary tube is used to acquire a small blood sample for CBC (complete blood count) analysis.Suction is not required to transfer the blood from the fingertip prick to the tube in part due to:

Accepted Answer

A)  ionic bonding between the water molecules.
B)  cohesive forces between the glass particles of the tube and the water molecules.
C)  covalent bonding between the water molecules.
D)  adhesive forces between the water molecules and the glass particles of the tube.E) All of the above
F) A) and D)

Question 11

Which of the following would have glycosidic bonds?

Accepted Answer

A)  triglycerides
B)  monosaccharides
C)  polypeptides
D)  polysaccharides
E)  ATPF) All of the above
G) A) and E)

Question 12

All proteins are enzymes.

Accepted Answer

A) True 
 B)False

Question 13

Microscopic analysis of a cell reveals the presence of ribosomes.Based upon this information alone,it can be determined that:

Accepted Answer

A)  it is a bacterial cell.
B)  it is an archaeal cell.
C)  it is a eukaryotic cell.
D)  it is either a bacterial or archaeal cell.
E)  further information is needed to determine if it is either a bacterial,archaeal,or eukaryotic cell.F) A) and B)
G) C) and D)

Question 14

Which of the following is not a pyrimidine?

Accepted Answer

A)  uracil
B)  adenine
C)  thymine
D)  cytosineE) A) and B)
F) B) and C)

Question 15

In what way would life be different if the element carbon was absent?

Accepted Answer

A)  There would be no organic compounds.
B)  There would be no inorganic compounds.
C)  Life would not exist in any shape or form.
D)  The concept of pH would not exist.E) A) and B)
F) A) and C)

Question 16

The important solvent associated with living things is

Accepted Answer

A)  carbon dioxide.
B)  sodium chloride.
C)  ethyl alcohol.
D)  benzene.
E)  water.F) A) and E)
G) All of the above

Question 17

Compared to a solution of pH 9,a solution of pH 7 is:

Accepted Answer

A)  2 times more acidic.
B)  20 times more acidic.
C)  20 times more basic.
D)  100 times more acidic.
E)  100 times more basic.F) A) and B)
G) C) and D)

Question 18

A solution is composed of one or more substances called _____ that are uniformly dispersed in a dissolving medium called a _____.

Accepted Answer

A)  solvents;solute
B)  solutes;solvent
C)  neither solvents,solute nor solutes;solvent
D)  both solvents,solute and solutes;solventE) C) and D)
F) B) and D)

Question 19

Most biochemical macromolecules are polymers,which are chains of

Accepted Answer

A)  hydrophobic molecules.
B)  electrolytic molecules.
C)  repeating monomers.
D)  repeating carbohydrates.
E)  hydrogen bonds.F) None of the above
G) A) and B)

Question 20

A covalent bond is formed between an anion and a cation.

Accepted Answer

A) True 
 B)False

Exam 2: The Chemistry of Biology

Polar molecules

Correct AnswerverifiedShow Answer

In what way would life be different if the element carbon was absent?

Correct AnswerverifiedShow Answer

What is the maximum number of electrons in the second energy shell of an atom?

Correct AnswerverifiedShow Answer

Which of the following represents a synthesis reaction?

Correct AnswerverifiedShow Answer

All proteins are enzymes.

Correct AnswerverifiedShow Answer

Most biochemical macromolecules are polymers,which are chains of

Correct AnswerverifiedShow Answer

Compared to a solution of pH 9,a solution of pH 7 is:

Correct AnswerverifiedShow Answer

A capillary tube is used to acquire a small blood sample for CBC (complete blood count) analysis.Suction is not required to transfer the blood from the fingertip prick to the tube in part due to:

Correct AnswerverifiedShow Answer

What part of a phospholipid comprise the hydrophobic tails?

Correct AnswerverifiedShow Answer

Which of the following is not a pyrimidine?

Correct AnswerverifiedShow Answer

A new organism was identified that contained arsenic in place of phosphate in its DNA double helix structure.Based upon this information alone,it can be determined that this change will greatly alter the information encoded by this genetic material.

Correct AnswerverifiedShow Answer

The building blocks of an enzyme are

Correct AnswerverifiedShow Answer

Starch is the primary storage food for all of the following except

Correct AnswerverifiedShow Answer

A solution is composed of one or more substances called _____ that are uniformly dispersed in a dissolving medium called a _____.

Correct AnswerverifiedShow Answer

Viruses are not considered living organisms because they lack cellular structure and require a host cell for life cycle completion.

Correct AnswerverifiedShow Answer

A covalent bond is formed between an anion and a cation.

Correct AnswerverifiedShow Answer

Which of the following would have glycosidic bonds?

Correct AnswerverifiedShow Answer

Compared to a solution of pH 9,a solution of pH 7:

Correct AnswerverifiedShow Answer

Microscopic analysis of a cell reveals the presence of ribosomes.Based upon this information alone,it can be determined that:

Correct AnswerverifiedShow Answer

The important solvent associated with living things is

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

A solution is composed of one or more substances called _ that are uniformly dispersed in a dissolving medium called a _.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified