Biology 2170 Final Exam Review Questions And All Correct Answers.
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Module
Bio 2170
Institution
Bio 2170
B. 6 protons, 8 neutrons, and 6 electrons - Answer 14C is an isotope of carbon that possesses:
A. 6 protons, 6 neutrons, and 2 electrons.
B.6 protons, 8 neutrons, and 6 electrons.
C.8 protons, 6 neutrons, and 2 electrons.
D.6 protons, 2 neutrons, and 6 electrons.
E.6 protons, 8 neut...
Biology 2170 Final Exam Review
Questions And All Correct Answers.
B. 6 protons, 8 neutrons, and 6 electrons - Answer 14C is an isotope of carbon that possesses:
A. 6 protons, 6 neutrons, and 2 electrons.
B.6 protons, 8 neutrons, and 6 electrons.
C.8 protons, 6 neutrons, and 2 electrons.
D.6 protons, 2 neutrons, and 6 electrons.
E.6 protons, 8 neutrons, and 2 electrons.
C. 5 - Answer How many electron orbitals does a carbon atom possess?
A.2
B.4
C.5
D.6
E.12
C. phosphorous(P) - Answer Which one of the following elements would most likely have bonding
properties similar to nitrogen (N)? Consult the periodic table in Figure 2.3 if necessary.
A. carbon (C)
B.silicon (Si)
C. phosphorous (P)
D. sulfur (S)
E. oxygen (O)
,A. 1.0 - Answer Which one of the following represents the pH of a solution with the highest
concentration of hydrogen ions?
A.1.0
B. 4.5
C.7.0
D.9.1
E.11.5
E. all are correct - Answer The structural diversity of carbon-based molecules is based upon which of
the following properties?
A. the ability of carbon to form four covalent bonds
B. the ability of those bonds to rotate freely
C.the orientation of those bonds in the form of a tetrahedron
D.None of these choices is correct.
E. All of these choices are correct.
Covalent bond - Answer Electrons shared by atoms.
Hydrogen bond - Answer An interaction of a hydrogen atom and an electronegative atom.
Ionic bond - Answer An interaction between oppositely charged ions.
A. nucleotides - Answer Sutherland and colleagues demonstrated the synthesis of which one of the
following under conditions thought to resemble those of early Earth?
A.nucleotides
B.amino acids
C.phospholipids
,D.nucleic acid chains
E.polypeptides
D. Double bonds can be found in cyclical structures. - Answer Which of the following statements about
a carbon-carbon double bond is correct?
A. Each of the two carbons is capable of bonding to three other atoms.
B. The double bond allows free rotation of the molecule at the bond position.
C. The double bond is longer than a corresponding carbon-carbon single bond.
D. Double bonds can be found in cyclical structures.
E. None of these statements about carbon-carbon double bonds is correct.
E. a 5' phosphate and a 3' hydroxyl group - Answer A phosphodiester bond is formed between:
A. a fatty acid and a glycerol molecule.
B.two amino acids.
C.a base and a sugar.
D.a 3' phosphate and a 5' hydroxyl group.
E.a 5' phosphate and a 3' hydroxyl group.
A. true - Answer True or false: although monosaccharides can exist in linear form, virtually all cellular
monosaccharides are found in circular form.
A.true
B.false
A. energy storage - Answer Triacylglycerols are used primarily for:
A. energy storage.
, B. information storage.
C. cell membrane biosynthesis.
D. biological catalysis.
E. movement.
B. lipids - Answer Which one of the following biological polymers is defined by a physical property
rather than a chemical structure?
A. proteins
B. lipids
C. monosaccharides
D. nucleic acids
E. polysaccharides
A. lipid bilayers - Answer Exposure of purified phospholipids to water results in the spontaneous
formation of:
A. lipid bilayers.
B. triacylglycerols.
C. steroids.
D. polypeptides.
E. carbohydrates.
E. amino acids - Answer Miller and Urey's initial simulation resulted in the formation of which one of
the following?
A. DNA
B. glucose
C. RNA
D. phospholipids
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