Question 1

All of the following are polysaccharides except

Accepted Answer

A)  dextran in some bacterial slime layers.
B)  agar used to make solid culture media.
C)  a cell's glycocalyx.
D)  cellulose in certain cell walls.
E)  sterols in cell membranes.

Question 2

One nucleotide contains one

Accepted Answer

A)  phosphate.
B)  pentose sugar.
C)  nitrogen base.
D)  All of the choices are correct.

Question 3

The most important outcome of polypeptide intrachain bonding and folding is the unique shape of the protein.

Accepted Answer

A) True 
 B)False

Question 4

The concentration of a solution expresses the amount of solvent present.

Accepted Answer

A) True 
 B)False

Question 5

Which pertains to DNA but not to RNA?

Accepted Answer

A)  contains ribose
B)  contains adenine
C)  contains thymine
D)  contains uracil
E)  contains nucleotides

Question 6

The purine ___ always binds with the pyrimidine ___ within both DNA and RNA.

Accepted Answer

A)  guanine;cytosine
B)  cytosine;guanine
C)  adenine;guanine
D)  thymine;guanine

Question 7

Which of the following functional groups is mismatched to the organic compound in which it is typically contained?

Accepted Answer

A)  phosphate - carbohydrates
B)  sulfhydryl - proteins
C)  amino - proteins
D)  hydroxyl - alcohols
E)  carboxyl - fatty acids

Question 8

An amino acid contains all of the following except a/n

Accepted Answer

A)  amino group.
B)  carboxyl group.
C)  variable R group.
D)   α\alphaα  carbon.
E)  phosphate.

Question 9

The valence number is the

Accepted Answer

A)  number of protons.
B)  number of neutrons.
C)  atomic weight.
D)  number of inner most electrons.
E)  number of outer most electrons.

Question 10

The electrons of an atom are

Accepted Answer

A)  always equal to the number of neutrons in an atom.
B)  found in the nucleus.
C)  used to determine atomic number.
D)  positively charged.
E)  moving in pathways called orbitals.

Question 11

A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution.If chemical analysis was performed to identify the contents of each beaker,which of the following would be found in the beaker of DNA but not in the beaker with glucose?

Accepted Answer

A)  amino acids
B)  hydrogen and oxygen atoms
C)  nitrogen and phosphorus
D)  fatty acids
E)  carbon atoms

Question 12

Polar molecules have more reactivity compared to nonpolar molecules.

Accepted Answer

A) True 
 B)False

Question 13

In a later chapter,you will study the staining of bacteria.In the Gram stain,alcohol is used as a decolorizer.What chemical component of the cell does alcohol affect?

Accepted Answer

A)  protein
B)  carbohydrate
C)  lipid
D)  electrolytes

Question 14

Water molecules are nonpolar molecules.

Accepted Answer

A) True 
 B)False

Question 15

All of the following are lipids except

Accepted Answer

A)  cholesterol.
B)  starch.
C)  phospholipid.
D)  wax.
E)  triglyceride.

Exam 2: The Chemistry of Biology

Water molecules are nonpolar molecules.

Correct Answer
verified

Polar molecules have more reactivity compared to nonpolar molecules.

Correct Answer
verified

An amino acid contains all of the following except a/n

Correct Answer
verified

The most important outcome of polypeptide intrachain bonding and folding is the unique shape of the protein.

Correct Answer
verified

All of the following are polysaccharides except

Correct Answer
verified

The valence number is the

Correct Answer
verified

The concentration of a solution expresses the amount of solvent present.

Correct Answer
verified

The electrons of an atom are

Correct Answer
verified

Which pertains to DNA but not to RNA?

Correct Answer
verified

The purine _ always binds with the pyrimidine _ within both DNA and RNA.

Correct Answer
verified

Which of the following functional groups is mismatched to the organic compound in which it is typically contained?

Correct Answer
verified

One nucleotide contains one

Correct Answer
verified

A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution.If chemical analysis was performed to identify the contents of each beaker,which of the following would be found in the beaker of DNA but not in the beaker with glucose?

Correct Answer
verified

All of the following are lipids except

Correct Answer
verified

In a later chapter,you will study the staining of bacteria.In the Gram stain,alcohol is used as a decolorizer.What chemical component of the cell does alcohol affect?

Correct Answer
verified

Exam 2: The Chemistry of Biology

Water molecules are nonpolar molecules.

Correct AnswerverifiedShow Answer

Polar molecules have more reactivity compared to nonpolar molecules.

Correct AnswerverifiedShow Answer

An amino acid contains all of the following except a/n

Correct AnswerverifiedShow Answer

The most important outcome of polypeptide intrachain bonding and folding is the unique shape of the protein.

Correct AnswerverifiedShow Answer

All of the following are polysaccharides except

Correct AnswerverifiedShow Answer

The valence number is the

Correct AnswerverifiedShow Answer

The concentration of a solution expresses the amount of solvent present.

Correct AnswerverifiedShow Answer

The electrons of an atom are

Correct AnswerverifiedShow Answer

Which pertains to DNA but not to RNA?

Correct AnswerverifiedShow Answer

The purine ___ always binds with the pyrimidine ___ within both DNA and RNA.

Correct AnswerverifiedShow Answer

Which of the following functional groups is mismatched to the organic compound in which it is typically contained?

Correct AnswerverifiedShow Answer

One nucleotide contains one

Correct AnswerverifiedShow Answer

A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution.If chemical analysis was performed to identify the contents of each beaker,which of the following would be found in the beaker of DNA but not in the beaker with glucose?

Correct AnswerverifiedShow Answer

All of the following are lipids except

Correct AnswerverifiedShow Answer

In a later chapter,you will study the staining of bacteria.In the Gram stain,alcohol is used as a decolorizer.What chemical component of the cell does alcohol affect?

Correct AnswerverifiedShow Answer

Correct Answer
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The purine _ always binds with the pyrimidine _ within both DNA and RNA.

Correct Answer
verified

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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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