Question 1

Humans must synthesize some of the proteins they need because they cannot obtain them from the foods they eat.

Accepted Answer

A) True 
 B)False

Question 2

The type of lipid that contains a four-ring structure and does not contain fatty acids is:

Accepted Answer

A) glycolipid. 
B) steroid. 
C) triglyceride. 
D) phospholipid. 
E) none of the above 
A) glycolipid. 
B) steroid. 
C) triglyceride. 
D) phospholipid. 
E) none of the above

Question 3

A codon is a section of DNA that specifies a single amino acid.

Accepted Answer

A) True 
 B)False

Question 4

A gene is:

Accepted Answer

A) a structure within the cell nucleus that houses DNA. 
B) a portion of DNA that codes for a single protein. 
C) a sequence of three nucleotides that codes for a single amino acid. 
D) a portion of a protein that codes for a single amino acid. 
E) none of the above 
A) a structure within the cell nucleus that houses DNA. 
B) a portion of DNA that codes for a single protein. 
C) a sequence of three nucleotides that codes for a single amino acid. 
D) a portion of a protein that codes for a single amino acid. 
E) none of the above

Question 5

If a segment of the double helix of DNA is analyzed and is found to contain 10,000 units of the base adenine (A),then this segment must also contain:

Accepted Answer

A) 10,000 units of the base uracil (U). 
B) 10,000 units of the base thymine (T). 
C) 10,000 units of the base cytosine (
C) . 
D) 5,000 units of the base thymine (T). 
E) 5,000 units of the base cytosine (
C) . 
A) 10,000 units of the base uracil (U). 
B) 10,000 units of the base thymine (T). 
C) 10,000 units of the base cytosine (
C) . 
D) 5,000 units of the base thymine (T). 
E) 5,000 units of the base cytosine (
C) .

Question 6

Which sequence below represents the correct base pairs that can exist in DNA?

Accepted Answer

A) A with T and C with G 
B) A with C and T with G 
C) A with G and C with T 
D) A with U and T with G 
E) none of the above 
A) A with T and C with G 
B) A with C and T with G 
C) A with G and C with T 
D) A with U and T with G 
E) none of the above

Question 7

Summarize the main features of the four categories of protein structure.

Accepted Answer

1.Primary structure is the sequence of a

Question 8

The four main classes of biochemical compounds are carbohydrates,lipids,proteins and nucleic acids.

Accepted Answer

A) True 
 B)False

Question 9

The human genome project is expected to:

Accepted Answer

A) help identify people who are susceptible to certain diseases. 
B) produce important drugs in the lab by using the blueprint our body provides. 
C) help develop new drugs to fight genetic diseases. 
D) help understand the genetic basis for intelligence. 
E) all of the above 
A) help identify people who are susceptible to certain diseases. 
B) produce important drugs in the lab by using the blueprint our body provides. 
C) help develop new drugs to fight genetic diseases. 
D) help understand the genetic basis for intelligence. 
E) all of the above

Question 10

Which protein structure provides the short-range repeating patterns?

Accepted Answer

A) Primary Structure 
B) Secondary Structure 
C) Tertiary Structure 
D) Quaternary Structure 
E) Pental Structure 
A) Primary Structure 
B) Secondary Structure 
C) Tertiary Structure 
D) Quaternary Structure 
E) Pental Structure

Question 11

The structure of a carbohydrate shows that water molecules are connected to carbon atoms.

Accepted Answer

A) True 
 B)False

Question 12

The region of the cell that holds the contents of the cell together is called ________.

Accepted Answer

A) nucleus 
B) mitochondria 
C) cell membrane 
D) cytoplasm 
E) none of the above 
A) nucleus 
B) mitochondria 
C) cell membrane 
D) cytoplasm 
E) none of the above

Question 13

Peptide bonds are responsible for the primary protein structure.

Accepted Answer

A) True 
 B)False

Question 14

Humans are better able to digest cellulose rather than starch because of differences in the link between the glucose units in the polysaccharide.

Accepted Answer

A) True 
 B)False

Question 15

Protein synthesis occurs at the ribosome.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following statements about proteins is FALSE?

Accepted Answer

A) Proteins are polymers of amino acids. 
B) Proteins can act as biological catalysts. 
C) Proteins are the structural component of muscle and cartilage. 
D) Proteins are a main source of energy for cells. 
E) All of the statements are true. 
A) Proteins are polymers of amino acids. 
B) Proteins can act as biological catalysts. 
C) Proteins are the structural component of muscle and cartilage. 
D) Proteins are a main source of energy for cells. 
E) All of the statements are true.

Question 17

The primary interactions that determine the tertiary structure of proteins include:

Accepted Answer

A) hydrogen bonds. 
B) disulfide linkages. 
C) hydrophobic interactions. 
D) all of A,B,and C 
E) none of A,B,and C 
A) hydrogen bonds. 
B) disulfide linkages. 
C) hydrophobic interactions. 
D) all of A,B,and C 
E) none of A,B,and C

Question 18

The structure of DNA is:

Accepted Answer

A) the pleated sheet. 
B) the alpha helix. 
C) the beta helix. 
D) the double helix. 
E) none of the above 
A) the pleated sheet. 
B) the alpha helix. 
C) the beta helix. 
D) the double helix. 
E) none of the above

Question 19

The term hydrophilic indicates a substance is repelled by water.

Accepted Answer

A) True 
 B)False

Question 20

A lipid is a chemical component of the cell that is:

Accepted Answer

A) insoluble in water but soluble in methanol. 
B) soluble in nonpolar solvents and insoluble in water. 
C) soluble in water and insoluble in nonpolar solvents. 
D) soluble in both water and nonpolar solvents. 
E) none of the above 
A) insoluble in water but soluble in methanol. 
B) soluble in nonpolar solvents and insoluble in water. 
C) soluble in water and insoluble in nonpolar solvents. 
D) soluble in both water and nonpolar solvents. 
E) none of the above

Humans must synthesize some of the proteins they need because they cannot obtain them from the foods they eat.

The type of lipid that contains a four-ring structure and does not contain fatty acids is:

A codon is a section of DNA that specifies a single amino acid.

A gene is:

If a segment of the double helix of DNA is analyzed and is found to contain 10,000 units of the base adenine (A),then this segment must also contain:

Which sequence below represents the correct base pairs that can exist in DNA?

Summarize the main features of the four categories of protein structure.

The four main classes of biochemical compounds are carbohydrates,lipids,proteins and nucleic acids.

The human genome project is expected to:

Which protein structure provides the short-range repeating patterns?

The structure of a carbohydrate shows that water molecules are connected to carbon atoms.

The region of the cell that holds the contents of the cell together is called ________.

Peptide bonds are responsible for the primary protein structure.

Humans are better able to digest cellulose rather than starch because of differences in the link between the glucose units in the polysaccharide.

Protein synthesis occurs at the ribosome.

Which of the following statements about proteins is FALSE?

The primary interactions that determine the tertiary structure of proteins include:

The structure of DNA is:

The term hydrophilic indicates a substance is repelled by water.

A lipid is a chemical component of the cell that is:

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Exam 19: Biochemistry

Humans must synthesize some of the proteins they need because they cannot obtain them from the foods they eat.

The type of lipid that contains a four-ring structure and does not contain fatty acids is:

A codon is a section of DNA that specifies a single amino acid.

A gene is:

If a segment of the double helix of DNA is analyzed and is found to contain 10,000 units of the base adenine (A),then this segment must also contain:

Which sequence below represents the correct base pairs that can exist in DNA?

Summarize the main features of the four categories of protein structure.

The four main classes of biochemical compounds are carbohydrates,lipids,proteins and nucleic acids.

The human genome project is expected to:

Which protein structure provides the short-range repeating patterns?

The structure of a carbohydrate shows that water molecules are connected to carbon atoms.

The region of the cell that holds the contents of the cell together is called ________.

Peptide bonds are responsible for the primary protein structure.

Humans are better able to digest cellulose rather than starch because of differences in the link between the glucose units in the polysaccharide.

Protein synthesis occurs at the ribosome.

Which of the following statements about proteins is FALSE?

The primary interactions that determine the tertiary structure of proteins include:

The structure of DNA is:

The term hydrophilic indicates a substance is repelled by water.

A lipid is a chemical component of the cell that is:

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Filters