Question 1

Which of the following is an example of a ketopentose?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 2

Which of the following shows all of the tripeptides that can be formed from one molecule each of lysine (Lys),threonine (Thr),and histidine (His)?

Accepted Answer

A) LysThrHis 
B) LysThrHis,LysHisThr,HisThrLys,HisLysThr,ThrLysHis,ThrHisLys 
C) LysThrHis,LysHisThr,HisLysThr,ThrHisLys 
D) LysThrHis,LysHisThr,HisLysThr 
E) LysThrHis and LysHisThr 
A) LysThrHis 
B) LysThrHis,LysHisThr,HisThrLys,HisLysThr,ThrLysHis,ThrHisLys 
C) LysThrHis,LysHisThr,HisLysThr,ThrHisLys 
D) LysThrHis,LysHisThr,HisLysThr 
E) LysThrHis and LysHisThr

Question 3

Which of the following form between glycerol and fatty acids to form triglycerides?

Accepted Answer

A) hydrogen bonds 
B) disulfide linkages 
C) peptide bonds 
D) glycosidic linkages 
E) ester linkages 
A) hydrogen bonds 
B) disulfide linkages 
C) peptide bonds 
D) glycosidic linkages 
E) ester linkages

Question 4

The following is part of a DNA sequence.What is its complementary sequence? 
TCGTAAGCTTGCG

Accepted Answer

A) AGCATTCGAACGC 
B) CGCAAGCTTACGA 
C) TCATTCAC 
D) GCGTTCGAATGCT 
E) TCGTAAGCTTGCG 
A) AGCATTCGAACGC 
B) CGCAAGCTTACGA 
C) TCATTCAC 
D) GCGTTCGAATGCT 
E) TCGTAAGCTTGCG

Question 5

What type of lipid is the following compound?

Accepted Answer

A) steroid 
B) phospholipid 
C) glycolipid 
D) fatty acid 
E) triglyceride 
A) steroid 
B) phospholipid 
C) glycolipid 
D) fatty acid 
E) triglyceride

Question 6

Identify the disaccharide.

Accepted Answer

A) glucose 
B) cholesterol 
C) fructose 
D) cellulose 
E) sucrose 
A) glucose 
B) cholesterol 
C) fructose 
D) cellulose 
E) sucrose

Question 7

What is the appropriate name for the strongest intermolecular force holding together two strands of DNA to form a double helix?

Accepted Answer

A) hydrogen bonds 
B) London dispersion forces 
C) dipole-dipole bonds 
D) ionic bonds 
E) covalent bonds 
A) hydrogen bonds 
B) London dispersion forces 
C) dipole-dipole bonds 
D) ionic bonds 
E) covalent bonds

Question 8

Which of the following is an example of a secondary protein structure?

Accepted Answer

A) dipeptide 
B) triglyceride 
C) a-helix 
D) amino acid 
E) fatty acid 
A) dipeptide 
B) triglyceride 
C) a-helix 
D) amino acid 
E) fatty acid

Question 9

Monosaccharide units are bonded together to form polysaccharides by which of the following?

Accepted Answer

A) peptide bonds 
B) glycosidic linkages 
C) disulfide linkages 
D) hydrogen bonds 
E) ester linkages 
A) peptide bonds 
B) glycosidic linkages 
C) disulfide linkages 
D) hydrogen bonds 
E) ester linkages

Question 10

Which of the following shows all of the tripeptides that can be formed from one molecule each of glycine (Gly),valine (Val),and leucine (Leu)?

Accepted Answer

A) GlyValLeu,GlyLeuVal,ValLeuGly,ValGlyLeu,LeuGlyVal,LeuValGly 
B) GlyValLeu,GlyLeuVal,LeuGlyVal 
C) ValGlyLeu,GlyValLeu,GlyLeuVal,LeuGlyVal 
D) ValGlyLeu and GlyLeuVal 
E) GlyValLeu 
A) GlyValLeu,GlyLeuVal,ValLeuGly,ValGlyLeu,LeuGlyVal,LeuValGly 
B) GlyValLeu,GlyLeuVal,LeuGlyVal 
C) ValGlyLeu,GlyValLeu,GlyLeuVal,LeuGlyVal 
D) ValGlyLeu and GlyLeuVal 
E) GlyValLeu

Question 11

Which of the following is an example of a secondary protein structure?

Accepted Answer

A) amino acid 
B) fatty acid 
C) lipid 
D) b-pleated sheet 
E) dipeptide 
A) amino acid 
B) fatty acid 
C) lipid 
D) b-pleated sheet 
E) dipeptide

Question 12

Which of the following has a tertiary protein structure?

Accepted Answer

A) amino acid 
B) fibrous protein 
C) nucleotide 
D) fatty acid 
E) globular protein 
A) amino acid 
B) fibrous protein 
C) nucleotide 
D) fatty acid 
E) globular protein

Question 13

What type of lipid is the following compound?

Accepted Answer

A) steroid 
B) phospholipid 
C) glycolipid 
D) fatty acid 
E) triglyceride 
A) steroid 
B) phospholipid 
C) glycolipid 
D) fatty acid 
E) triglyceride

Question 14

The following is part of a DNA sequence.What is its complementary sequence? 
AGTTCGAGCCT

Accepted Answer

A) AGTTCGAGCCT 
B) TCCGAGCTTGA 
C) CAGTCCA 
D) AGGCTCGAACT 
E) TCAAGCTCGGA 
A) AGTTCGAGCCT 
B) TCCGAGCTTGA 
C) CAGTCCA 
D) AGGCTCGAACT 
E) TCAAGCTCGGA

Question 15

Choose the disaccharide from the compounds below.

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Question 16

How do cis- and trans-fats differ?

Accepted Answer

Since trans double-bond-containing molec

Question 17

Which of the following statements is TRUE?

Accepted Answer

A) A nucleotide is composed of a sugar,a base,and a sulfate group. 
B) A codon is a sequence of three bases that codes for a single peptide. 
C) A gene is a portion of DNA that codes for a single protein. 
D) Three bases in a sequence form a chromosome,and a set of chromosomes builds up DNA. 
E) Two helices that form one DNA molecule are held together by peptide bonds. 
A) A nucleotide is composed of a sugar,a base,and a sulfate group. 
B) A codon is a sequence of three bases that codes for a single peptide. 
C) A gene is a portion of DNA that codes for a single protein. 
D) Three bases in a sequence form a chromosome,and a set of chromosomes builds up DNA. 
E) Two helices that form one DNA molecule are held together by peptide bonds.

Question 18

What type of lipid is the following compound?

Accepted Answer

A) steroid 
B) phospholipid 
C) glycolipid 
D) fatty acid 
E) triglyceride 
A) steroid 
B) phospholipid 
C) glycolipid 
D) fatty acid 
E) triglyceride

Question 19

Why does the melting point of fatty acids decrease with the number of double bonds present?

Accepted Answer

The melting points of fatty acids are de

Question 20

Which of the following fatty acids is most likely to be a liquid at room temperature?

Accepted Answer

A) 
  
B) 
  
C) 
  
D) 
  
E) 
  
A) 
  
B) 
  
C) 
  
D) 
  
E)

Exam 22: Biochemistry

Which of the following is an example of a ketopentose?

Which of the following shows all of the tripeptides that can be formed from one molecule each of lysine (Lys),threonine (Thr),and histidine (His)?

Which of the following form between glycerol and fatty acids to form triglycerides?

The following is part of a DNA sequence.What is its complementary sequence? TCGTAAGCTTGCG

What type of lipid is the following compound?

Identify the disaccharide.

What is the appropriate name for the strongest intermolecular force holding together two strands of DNA to form a double helix?

Which of the following is an example of a secondary protein structure?

Monosaccharide units are bonded together to form polysaccharides by which of the following?

Which of the following shows all of the tripeptides that can be formed from one molecule each of glycine (Gly),valine (Val),and leucine (Leu)?

Which of the following is an example of a secondary protein structure?

Which of the following has a tertiary protein structure?

What type of lipid is the following compound?

The following is part of a DNA sequence.What is its complementary sequence? AGTTCGAGCCT

Choose the disaccharide from the compounds below.

How do cis- and trans-fats differ?

Which of the following statements is TRUE?

What type of lipid is the following compound?

Why does the melting point of fatty acids decrease with the number of double bonds present?

Which of the following fatty acids is most likely to be a liquid at room temperature?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules,compounds,and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding II: Molecular Shapes, valence Bond Theory, and Molecular Orbital Theory

Liquids, solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

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