Question 1

Which of the following statements is NOT true of the amino acids?

Accepted Answer

A) The R group of amino acids differs from one amino acid to another. 
B) There are more than 60 different kinds of amino acids present in cells. 
C) Amino acids have an N- terminus, C- terminus, and R groups. 
D) All amino acids exist in two stereoisomeric forms. 
E) Only around 20 amino acids are used in protein synthesis. 
A) The R group of amino acids differs from one amino acid to another. 
B) There are more than 60 different kinds of amino acids present in cells. 
C) Amino acids have an N- terminus, C- terminus, and R groups. 
D) All amino acids exist in two stereoisomeric forms. 
E) Only around 20 amino acids are used in protein synthesis.

Question 2

Which of the following is NOT a polysaccharide?

Accepted Answer

A) chitin 
B) extensin 
C) starch 
D) cellulose 
E) glycogen 
A) chitin 
B) extensin 
C) starch 
D) cellulose 
E) glycogen

Question 3

Which of the following does NOT represent the correct pairing of the three- letter abbreviation with the one- letter abbreviation of an amino acid?

Accepted Answer

A) Phe- F 
B) Pro- P 
C) Arg- A 
D) Met- M 
E) Glu- E 
A) Phe- F 
B) Pro- P 
C) Arg- A 
D) Met- M 
E) Glu- E

Question 4

Which of the following is NOT a steroid?

Accepted Answer

A) aldosterone 
B) testosterone 
C) estradiol 
D) epinephrine 
E) cortisol 
A) aldosterone 
B) testosterone 
C) estradiol 
D) epinephrine 
E) cortisol

Question 5

The term amphipathic describes the characteristic of some molecules that have .

Accepted Answer

A) only a single polar region 
B) both a polar and a nonpolar region 
C) two nonpolar regions 
D) two polar regions 
E) no polar regions 
A) only a single polar region 
B) both a polar and a nonpolar region 
C) two nonpolar regions 
D) two polar regions 
E) no polar regions

Question 6

To which of the following classes of sugars does glucose belong?

Accepted Answer

A) hexose 
B) tetrose 
C) heptose 
D) triose 
E) pentose 
A) hexose 
B) tetrose 
C) heptose 
D) triose 
E) pentose

Question 7

Which of the following is most similar to the Watson- Crick helix?

Accepted Answer

A) mRNA 
B) Z- DNA 
C) B- DNA 
D) A- DNA 
E) C- DNA 
A) mRNA 
B) Z- DNA 
C) B- DNA 
D) A- DNA 
E) C- DNA

Question 8

Which of the following three- letter symbols represents an amino acid that is a polar and uncharged?

Accepted Answer

A) ala 
B) pro 
C) his 
D) gln 
E) asp 
A) ala 
B) pro 
C) his 
D) gln 
E) asp

Question 9

Disulfide bonds are often found to stabilize which of the following levels of protein structure?

Accepted Answer

A) tertiary 
B) primary 
C) secondary 
D) all of the above 
E) none of the above 
A) tertiary 
B) primary 
C) secondary 
D) all of the above 
E) none of the above

Question 10

Which of the following is NOT a base used in DNA replication?

Accepted Answer

A) guanine 
B) cytosine 
C) uracil 
D) thymine 
E) adenine 
A) guanine 
B) cytosine 
C) uracil 
D) thymine 
E) adenine

Question 11

Cellulose belongs to which of the following groups of macromolecules?

Accepted Answer

A) carbohydrates 
B) proteins 
C) lipids 
D) nucleic acids 
E) none of the above 
A) carbohydrates 
B) proteins 
C) lipids 
D) nucleic acids 
E) none of the above

Which of the following statements is NOT true of the amino acids?

Which of the following is NOT a polysaccharide?

Which of the following does NOT represent the correct pairing of the three- letter abbreviation with the one- letter abbreviation of an amino acid?

Which of the following is NOT a steroid?

The term amphipathic describes the characteristic of some molecules that have .

To which of the following classes of sugars does glucose belong?

Which of the following is most similar to the Watson- Crick helix?

Which of the following three- letter symbols represents an amino acid that is a polar and uncharged?

Disulfide bonds are often found to stabilize which of the following levels of protein structure?

Which of the following is NOT a base used in DNA replication?

Cellulose belongs to which of the following groups of macromolecules?

A Preview of the Cell

The Chemistry of the Cell

Cells and Organelles

Bioenergetics: The Flow of Energy in the Cell

Enzymes: The Catalysts of Life

Membranes: Their Structure, Function, and Chemistry

Transport Across Membranes: Overcoming the Permeability Barrier

Chemotrophic Energy Metabolism: Glycolysis and Fermentation

Chemotrophic Energy Metabolism: Aerobic Respiration

Phototrophic Energy Metabolism: Photosynthesis

The Endomembrane System and Peroxisomes

Signal Transduction Mechanisms: I Electrical and Synaptic Signaling in Neurons

Signal Transduction Mechanisms: Ii Messengers and Receptors

Cytoskeletal Systems

Cellular Movement: Motility and Contractility

Beyond the Cell: Cell Adhesion, Cell Junctions, and Extracellular Structures

The Structural Basis of Cellular Information: DNA, Chromosomes, and the Nucleus

The Cell Cycle, Dna Replication, and Mitosis

Sexual Reproduction, Meiosis, and Genetic Recombination

Gene Expression: I the Genetic Code and Transcription

Gene Expression: II Protein Synthesis and Sorting

The Regulation of Gene Expression

Cancer Cells

Filters

Exam 3: The Macromolecules of the Cell

Which of the following statements is NOT true of the amino acids?

Which of the following is NOT a polysaccharide?

Which of the following does NOT represent the correct pairing of the three- letter abbreviation with the one- letter abbreviation of an amino acid?

Which of the following is NOT a steroid?

The term amphipathic describes the characteristic of some molecules that have .

To which of the following classes of sugars does glucose belong?

Which of the following is most similar to the Watson- Crick helix?

Which of the following three- letter symbols represents an amino acid that is a polar and uncharged?

Disulfide bonds are often found to stabilize which of the following levels of protein structure?

Which of the following is NOT a base used in DNA replication?

Cellulose belongs to which of the following groups of macromolecules?

A Preview of the Cell

The Chemistry of the Cell

Cells and Organelles

Bioenergetics: The Flow of Energy in the Cell

Enzymes: The Catalysts of Life

Membranes: Their Structure, Function, and Chemistry

Transport Across Membranes: Overcoming the Permeability Barrier

Chemotrophic Energy Metabolism: Glycolysis and Fermentation

Chemotrophic Energy Metabolism: Aerobic Respiration

Phototrophic Energy Metabolism: Photosynthesis

The Endomembrane System and Peroxisomes

Signal Transduction Mechanisms: I Electrical and Synaptic Signaling in Neurons

Signal Transduction Mechanisms: Ii Messengers and Receptors

Cytoskeletal Systems

Cellular Movement: Motility and Contractility

Beyond the Cell: Cell Adhesion, Cell Junctions, and Extracellular Structures

The Structural Basis of Cellular Information: DNA, Chromosomes, and the Nucleus

The Cell Cycle, Dna Replication, and Mitosis

Sexual Reproduction, Meiosis, and Genetic Recombination

Gene Expression: I the Genetic Code and Transcription

Gene Expression: II Protein Synthesis and Sorting

The Regulation of Gene Expression

Cancer Cells

Filters