1|Pag e 2|Pag e
Chapter 01
The Facts of Life: Chemistry Is the Logic of Biological Phenomena
1. All are distinctive properties of living systems EXCEPT:
a. Living organisms are relatively simple.
b. Biological structures play a role in the organism's existence.
c. The living state is characterized by the flow of energy through the organism.
d. Living organisms are highly organized.
e. Living organisms are actively engaged in energy transformation.
- ANSWER: a
2. Even though the building blocks have fairly simple structures,
macromolecules are exquisitely organized in their intricate three-dimensional
architecture known as:
a. configuration.
b. conformation.
c. sequence.
d. Lewis structure.
e. structural maturation.
- ANSWER: b
TESTBANK FOR BIOCHEMISTRY 6TH EDITION BY 3. All of the following activities require the presence of ATP or NADPH
REGINALD GARRETT CHAPTERS 1-53|| FULL TEST EXCEPT:
BANK QUESTIONS AND ANSWERS ALREADY a. osmoregulation.
G5RADED A+|| ASSURED PASS!! b. biosynthesis.
c. movement of muscles.
,3|Pag e 4|Pag e
d. light emission.
e. none, they are all energy-requiring activities. d. ammonium ion.
- ANSWER: e e. none, all are major precursors.
- ANSWER: e
4. Which are the four most common elements in the human body?
a. hydrogen, calcium, oxygen and sodium 7. From the major precursors, the complex biomolecules are made in which
sequence?
b. hydrogen, oxygen, iron and carbon
a. metabolites, building blocks, macromolecules, supramolecular complexes
c. hydrogen, oxygen, carbon and nitrogen
b. macromolecules, building blocks, metabolites, supramolecular complexes
d. oxygen, carbon, iron and nitrogen
c. building blocks, macromolecules, supramolecular complexes, metabolites
e. oxygen, silicon, calcium and nitrogen
d. metabolites, macromolecules, building blocks, supramolecular complexes
- ANSWER: c
e. metabolites, building blocks, supramolecular complexes, macromolecules
- ANSWER: a
5. What makes carbon such an abundant element in biomolecules?
a. It can form up to five bonds by sharing its electrons.
8. The structural integrity of supramolecular complexes (assemblies) of
b. It forms only single bonds.
multiple components are bonded to each other by all of the following forces
c. It provides low bond energy. EXCEPT:
d. It forms stable covalent bonds by electron pair sharing. a. covalent bonds
e. It does not usually bond to other carbons, allowing a more diverse b. van der Waals forces
combination of elements.
c. hydrogen bonds
- ANSWER: d
d. hydrophobic interactions
e. ionic interactions
6. The major precursors for the formation of biomolecules include all
- ANSWER: a
EXCEPT:
a. nitrate and dinitrogen.
9. Organelles have what three attributes?
b. water.
a. Only in prokaryotic cells, membrane bound, have a dedicated set of tasks.
c. carbon dioxide.
,5|Pag e 6|Pag e
b. Only in eukaryotic cells, membrane bound, have a dedicated set of tasks. a. ionic, hydrogen bond, van der Waals
c. Only in eukaryotic cells, seldom membrane bound, have a dedicated set of b. van der Waals, hydrogen bond, ionic
tasks.
c. van der Waals, ionic, hydrogen bond
d. Only in prokaryotic cells, membrane bound, multi-functional.
d. hydrogen bond, van der Waals, ionic
e. In both prokaryotic cells and eukaryotic cells, membrane bound, have a
e. cannot be determined since ionic interactions and hydrogen bonds often vary
dedicated set of tasks.
in strength
- ANSWER: b
- ANSWER: e
10. Membrane structures are maintained primarily by:
13. Weak forces that create constantly forming and breaking interactions at
a. hydrophobic interactions. physiological temperatures, but cumulatively impart stability to biological
structures generated by their collective activity include all EXCEPT:
b. covalent bonds.
a. hydrogen bonds
c. hydrogen bonds.
b. van der Waals forces
d. non-spontaneous assembly.
c. covalent bonds
e. ionic interactions.
d. ionic interactions
- ANSWER: a
e. hydrophobic interactions
- ANSWER: c
11. All of the following are properties of membranes EXCEPT:
a. supramolecular assemblies.
14. Which of the following is a true statement about non-covalent bonds?
b. define boundaries of cellular components.
a. They are all the result of electron sharing.
c. spontaneous assemblies resulting from hydrophobic interactions.
b. Hydrogen bonds, ionic bond and hydrophobic interactions all carry a degree
d. identical protein and lipid composition in the major organelles.
of specificity while van der Waals interactions are induced.
e. none, all are true.
c. All noncovalent bonds are formed between oppositely charged polar
- ANSWER: d functions.
d. Van der Waals interactions are not affected by structural complementarity,
12. Which of the following properly ranks the non-covalent interactions in order while hydrogen bonds, ionic bonds and hydrophobic interaction are affected by
of increasing strength? structural complementarity.
, 7|Pag e 8|Pag e
e. Hydrogen, van der Waals, and hydrophobic interactions do not form linear 17. Which of the following molecular recognition mechanisms is based upon
bonds. structural complementarity?
- ANSWER: b a. interaction of a protein with a metabolite.
b. the association of a strand of DNA with its complementary strand.
15. Electrostatic forces c. the ability for a sperm cell to bind to an egg.
a. include ionic interactions between negatively charged carboxyl groups and d. the binding of a hormone to its receptor.
positively charged amino groups.
e. all of the above
b. average about 2 kJ/mol in aqueous solutions.
- ANSWER: e
c. typically are directional like hydrogen bonds.
d. require a precise fit like van der Waals interactions.
18. All of the statements about structural complementarity are true EXCEPT:
e. include ionic, induced dipole and permanent dipole interactions.
a. Weak chemical forces mediate it.
- ANSWER: a
b. It produces strong irreversible interactions.
c. It is the interaction of a biological macromolecule and its ligand.
16. All are true about hydrophobic interactions EXCEPT:
d. It is the basis of many biological functions.
a. Hydrophobic interactions result from the strong tendency of water to
e. It is the means of recognition in bimolecular interactions.
exclude nonpolar groups or molecules.
- ANSWER: b
b. Hydrophobic interactions result because water molecules prefer the stronger
interactions that they share with one another, compared to their interactions with
nonpolar molecules. 19. Which of the following statements regarding molecular recognition is
c. Hydrophobic interactions result from hydrogen bonds between water and the correct?
hydrophobic molecules. a. Covalent bonds are a common interaction used in molecular recognition.
d. The preferential interactions between water molecules "exclude" b. Molecular recognition takes place only between protein molecules.
hydrophobic substances from aqueous solution and drive the tendency of nonpolar
molecules to cluster together. c. For molecular recognition to occur, complementarity of the molecules is
required.
e. Hydrophobic interactions result in nonpolar regions of biological molecules
being buried in the molecule's interior to exclude them from the aqueous milieu. d. Hydrogen bonds are not effective mediators of molecular recognition due to
their low strength.
- ANSWER: c
e. None of the above are correct.
- ANSWER: c
Chapter 01
The Facts of Life: Chemistry Is the Logic of Biological Phenomena
1. All are distinctive properties of living systems EXCEPT:
a. Living organisms are relatively simple.
b. Biological structures play a role in the organism's existence.
c. The living state is characterized by the flow of energy through the organism.
d. Living organisms are highly organized.
e. Living organisms are actively engaged in energy transformation.
- ANSWER: a
2. Even though the building blocks have fairly simple structures,
macromolecules are exquisitely organized in their intricate three-dimensional
architecture known as:
a. configuration.
b. conformation.
c. sequence.
d. Lewis structure.
e. structural maturation.
- ANSWER: b
TESTBANK FOR BIOCHEMISTRY 6TH EDITION BY 3. All of the following activities require the presence of ATP or NADPH
REGINALD GARRETT CHAPTERS 1-53|| FULL TEST EXCEPT:
BANK QUESTIONS AND ANSWERS ALREADY a. osmoregulation.
G5RADED A+|| ASSURED PASS!! b. biosynthesis.
c. movement of muscles.
,3|Pag e 4|Pag e
d. light emission.
e. none, they are all energy-requiring activities. d. ammonium ion.
- ANSWER: e e. none, all are major precursors.
- ANSWER: e
4. Which are the four most common elements in the human body?
a. hydrogen, calcium, oxygen and sodium 7. From the major precursors, the complex biomolecules are made in which
sequence?
b. hydrogen, oxygen, iron and carbon
a. metabolites, building blocks, macromolecules, supramolecular complexes
c. hydrogen, oxygen, carbon and nitrogen
b. macromolecules, building blocks, metabolites, supramolecular complexes
d. oxygen, carbon, iron and nitrogen
c. building blocks, macromolecules, supramolecular complexes, metabolites
e. oxygen, silicon, calcium and nitrogen
d. metabolites, macromolecules, building blocks, supramolecular complexes
- ANSWER: c
e. metabolites, building blocks, supramolecular complexes, macromolecules
- ANSWER: a
5. What makes carbon such an abundant element in biomolecules?
a. It can form up to five bonds by sharing its electrons.
8. The structural integrity of supramolecular complexes (assemblies) of
b. It forms only single bonds.
multiple components are bonded to each other by all of the following forces
c. It provides low bond energy. EXCEPT:
d. It forms stable covalent bonds by electron pair sharing. a. covalent bonds
e. It does not usually bond to other carbons, allowing a more diverse b. van der Waals forces
combination of elements.
c. hydrogen bonds
- ANSWER: d
d. hydrophobic interactions
e. ionic interactions
6. The major precursors for the formation of biomolecules include all
- ANSWER: a
EXCEPT:
a. nitrate and dinitrogen.
9. Organelles have what three attributes?
b. water.
a. Only in prokaryotic cells, membrane bound, have a dedicated set of tasks.
c. carbon dioxide.
,5|Pag e 6|Pag e
b. Only in eukaryotic cells, membrane bound, have a dedicated set of tasks. a. ionic, hydrogen bond, van der Waals
c. Only in eukaryotic cells, seldom membrane bound, have a dedicated set of b. van der Waals, hydrogen bond, ionic
tasks.
c. van der Waals, ionic, hydrogen bond
d. Only in prokaryotic cells, membrane bound, multi-functional.
d. hydrogen bond, van der Waals, ionic
e. In both prokaryotic cells and eukaryotic cells, membrane bound, have a
e. cannot be determined since ionic interactions and hydrogen bonds often vary
dedicated set of tasks.
in strength
- ANSWER: b
- ANSWER: e
10. Membrane structures are maintained primarily by:
13. Weak forces that create constantly forming and breaking interactions at
a. hydrophobic interactions. physiological temperatures, but cumulatively impart stability to biological
structures generated by their collective activity include all EXCEPT:
b. covalent bonds.
a. hydrogen bonds
c. hydrogen bonds.
b. van der Waals forces
d. non-spontaneous assembly.
c. covalent bonds
e. ionic interactions.
d. ionic interactions
- ANSWER: a
e. hydrophobic interactions
- ANSWER: c
11. All of the following are properties of membranes EXCEPT:
a. supramolecular assemblies.
14. Which of the following is a true statement about non-covalent bonds?
b. define boundaries of cellular components.
a. They are all the result of electron sharing.
c. spontaneous assemblies resulting from hydrophobic interactions.
b. Hydrogen bonds, ionic bond and hydrophobic interactions all carry a degree
d. identical protein and lipid composition in the major organelles.
of specificity while van der Waals interactions are induced.
e. none, all are true.
c. All noncovalent bonds are formed between oppositely charged polar
- ANSWER: d functions.
d. Van der Waals interactions are not affected by structural complementarity,
12. Which of the following properly ranks the non-covalent interactions in order while hydrogen bonds, ionic bonds and hydrophobic interaction are affected by
of increasing strength? structural complementarity.
, 7|Pag e 8|Pag e
e. Hydrogen, van der Waals, and hydrophobic interactions do not form linear 17. Which of the following molecular recognition mechanisms is based upon
bonds. structural complementarity?
- ANSWER: b a. interaction of a protein with a metabolite.
b. the association of a strand of DNA with its complementary strand.
15. Electrostatic forces c. the ability for a sperm cell to bind to an egg.
a. include ionic interactions between negatively charged carboxyl groups and d. the binding of a hormone to its receptor.
positively charged amino groups.
e. all of the above
b. average about 2 kJ/mol in aqueous solutions.
- ANSWER: e
c. typically are directional like hydrogen bonds.
d. require a precise fit like van der Waals interactions.
18. All of the statements about structural complementarity are true EXCEPT:
e. include ionic, induced dipole and permanent dipole interactions.
a. Weak chemical forces mediate it.
- ANSWER: a
b. It produces strong irreversible interactions.
c. It is the interaction of a biological macromolecule and its ligand.
16. All are true about hydrophobic interactions EXCEPT:
d. It is the basis of many biological functions.
a. Hydrophobic interactions result from the strong tendency of water to
e. It is the means of recognition in bimolecular interactions.
exclude nonpolar groups or molecules.
- ANSWER: b
b. Hydrophobic interactions result because water molecules prefer the stronger
interactions that they share with one another, compared to their interactions with
nonpolar molecules. 19. Which of the following statements regarding molecular recognition is
c. Hydrophobic interactions result from hydrogen bonds between water and the correct?
hydrophobic molecules. a. Covalent bonds are a common interaction used in molecular recognition.
d. The preferential interactions between water molecules "exclude" b. Molecular recognition takes place only between protein molecules.
hydrophobic substances from aqueous solution and drive the tendency of nonpolar
molecules to cluster together. c. For molecular recognition to occur, complementarity of the molecules is
required.
e. Hydrophobic interactions result in nonpolar regions of biological molecules
being buried in the molecule's interior to exclude them from the aqueous milieu. d. Hydrogen bonds are not effective mediators of molecular recognition due to
their low strength.
- ANSWER: c
e. None of the above are correct.
- ANSWER: c
