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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 floẅ 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 knoẅn as:
a. configuration.
b. conformation.
c. sequence.
d. Leẅis structure.
e. structural maturation.
- ANSWER: b
3. All of the folloẅing activities require the presence of ATP or NADPH
EXCEPT:
a. osmoregulation.
b. biosynthesis.
c. movement of muscles.
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d. light emission.
e. none, they are all energy-requiring activities.
- ANSWER: e
4. Which are the four most common elements i
the human body?
a. hydrogen, calcium, oxygen and sodium
b. hydrogen, oxygen, iron and carbon
c. hydrogen, oxygen, carbon and nitrogen
d. oxygen, carbon, iron and nitrogen
e. oxygen, silicon, calcium and nitrogen
- ANSWER: c
5. What makes carbon such an abundant elemen
in biomolecules?
a. It can form up to five bonds by sharing its electrons.
b. It forms only single bonds.
c. It provides loẅ bond energy.
d. It forms stable covalent bonds by electron pa
sharing.
e. It does not usually bond to other carbons, alloẅing a more diverse
combination of elements.
- ANSWER: d
6. The major precursors for the formation of biomolecules include all
EXCEPT:
a. nitrate and dinitrogen.
b. ẅater.
c. carbon dioxide.
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d. ammonium ion.
e. none, all are major precursors.
- ANSWER: e
7. From the major precursors, the complex
sequence? biomolecules are made in ẅhich
a. metabolites, building blocks, macromolecules, supramolecular complexes
b. macromolecules, building blocks, metabolites, supramolecular complexes
c. building blocks, macromolecules, supramolecular complexes, metabolites
d. metabolites, macromolecules, building blocks, supramolecular complexes
e. metabolites, building blocks, supramolecular complexes, macromolecules
- ANSWER: a
8. The structural integrity of supramolecular complexes (assemblies) of
multiple components are bonded to each other by all of the folloẅing forces
EXCEPT:
a. covalent bonds
b. van der Waals forces
c. hydrogen bonds
d. hydrophobic interactions
e. ionic interactions
- ANSWER: a
9. Organelles have ẅhat three attributes?
a. Only in prokaryotic cells, membrane bound, have a dedicated set of tasks.