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CSU Life 102 Final Exam multiple
choice selection exam Erik Arthun
Colorado State University
What results from an unequal sharing of electrons between atoms?
A) A polymer
B) A non polar covalent bond
C) An ionic bond
D) A polar covalent bond
E) A hydrophobic reaction - a polar covalent bond
In a drop of water, which two types of bonds occur between atoms?
A) Hydrogen bonds within each water molecule, ionic bond between separate water molecules
B) Polar covalent bonds within each water molecule, covalent bonds between separate water moles
C) Ionic bonds within each water molecule, hydrogen bonds between separate molecules
D) Polar covalent bonds within each water mole, hydrogen bonds between separate water molecules
- Polar covalent bonds within each water molecule, hydrogen bonds between separate water
molecules
pH is a measure of the:
A) Heat of vaporization of a solution
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B) Concentration of hydrogen ions (H+) in a solution
C) Concentration of hydroxide ions (OH-) in a solution
D) Molecular weight of a solution's. atoms in Daltons (Da) - Concentration of hydrogen ions (H+) in a
solution
The element present in all organic molecules is
A) Oxygen
B) Calcium
C) Hydrogen
D) Nitrogen
E) Carbon - Carbon
The tertiary structure of a protein is the
A) Three dimension al shape of the fully-folded polypeptide created by the interaction of individual
amino acid side chains
B) Organization of a polypeptide chain into a-helices or B-pleated sheets
C) Order in which amino acids are joined together to form a polypeptide chain
D) Complex structure cause by two or more individual polypeptides sticking together - Three-
dimensional shape of the fully-folded polypeptide created by the interaction of individual amino acid
side chains
The function of each protein is a consequence of its specific shape. What is the term used for a change
in the protein's three-dimensional shape, or conformation due to disruption of hydrogen bonds,
disulfide bridges, or ionic bonds?
A) Hydrolysis
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B) Stabilization
C) Denaturation
D) Renaturation
E) Destabilization - Denaturation
Which of the following macromolecules leaves the nucleus of a eukaryotic cell through pores in the
nuclear membrane?
A) Cellulose
B) Amino Acids
C) mRNA
D) Phospholipids
E) DNA - mRNA
According to the endosymbiont theory, which of the following eukaryotic organelles was at one time a
free-living prokaryote that was engulfed by another cell?
A) Peroxisome
B) Nucleus
C) Endoplasmic Reticulum
D) Mitochondria
E) Golgi apparatus - Mitochondria
What is the function of the rough Endoplasmic Reticulum?
A) It is involved in cell division (spindle formation)
CLASSROOM CLASSROOM CLASSROOM
CSU Life 102 Final Exam multiple
choice selection exam Erik Arthun
Colorado State University
What results from an unequal sharing of electrons between atoms?
A) A polymer
B) A non polar covalent bond
C) An ionic bond
D) A polar covalent bond
E) A hydrophobic reaction - a polar covalent bond
In a drop of water, which two types of bonds occur between atoms?
A) Hydrogen bonds within each water molecule, ionic bond between separate water molecules
B) Polar covalent bonds within each water molecule, covalent bonds between separate water moles
C) Ionic bonds within each water molecule, hydrogen bonds between separate molecules
D) Polar covalent bonds within each water mole, hydrogen bonds between separate water molecules
- Polar covalent bonds within each water molecule, hydrogen bonds between separate water
molecules
pH is a measure of the:
A) Heat of vaporization of a solution
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,CLASSROOM CLASSROOM CLASSROOM
B) Concentration of hydrogen ions (H+) in a solution
C) Concentration of hydroxide ions (OH-) in a solution
D) Molecular weight of a solution's. atoms in Daltons (Da) - Concentration of hydrogen ions (H+) in a
solution
The element present in all organic molecules is
A) Oxygen
B) Calcium
C) Hydrogen
D) Nitrogen
E) Carbon - Carbon
The tertiary structure of a protein is the
A) Three dimension al shape of the fully-folded polypeptide created by the interaction of individual
amino acid side chains
B) Organization of a polypeptide chain into a-helices or B-pleated sheets
C) Order in which amino acids are joined together to form a polypeptide chain
D) Complex structure cause by two or more individual polypeptides sticking together - Three-
dimensional shape of the fully-folded polypeptide created by the interaction of individual amino acid
side chains
The function of each protein is a consequence of its specific shape. What is the term used for a change
in the protein's three-dimensional shape, or conformation due to disruption of hydrogen bonds,
disulfide bridges, or ionic bonds?
A) Hydrolysis
CLASSROOM CLASSROOM CLASSROOM
, CLASSROOM CLASSROOM CLASSROOM
B) Stabilization
C) Denaturation
D) Renaturation
E) Destabilization - Denaturation
Which of the following macromolecules leaves the nucleus of a eukaryotic cell through pores in the
nuclear membrane?
A) Cellulose
B) Amino Acids
C) mRNA
D) Phospholipids
E) DNA - mRNA
According to the endosymbiont theory, which of the following eukaryotic organelles was at one time a
free-living prokaryote that was engulfed by another cell?
A) Peroxisome
B) Nucleus
C) Endoplasmic Reticulum
D) Mitochondria
E) Golgi apparatus - Mitochondria
What is the function of the rough Endoplasmic Reticulum?
A) It is involved in cell division (spindle formation)
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