BIO 201 FINAL EXAM ACTUAL EXAM 200 QUESTIONS
AND CORRECT DETAILED ANSWERS |ALREADY
GRADED A+
Proteins are largely responsible for the traits of living organisms, while ________
provides the blueprint for the organization, development, and function of living
things. - ANSWER-DNA
What feature of genetic mutations can eventually lead to the evolution of new
species? - ANSWER-Mutations produce changes in the DNA sequence of a gene.
The complete genetic composition of an organism is called its - ANSWER-
genome.
A researcher decides to test the scientific validity of the common phrase "An apple
a day keeps the doctor away." What would be a valid hypothesis to investigate this
specific question? - ANSWER-The daily consumption of a single apple does not
change the number of visits to the doctor.
Tritiated hydrogen (3H) differs from hydrogen (1H) in that - ANSWER-) 3H has 2
more neutrons than 1H
When one atom loses an electron to another atom, it results in the formation of -
ANSWER-cations and anions that can form ionic bonds.
What type of bonding is likely to occur between two water molecules or strands of
DNA? - ANSWER-covalent
1
,Carbon and hydrogen have similar electronegativities and combine together to
form hydrocarbon molecules. What type of bonds form between these atoms? -
ANSWER-nonpolar covalent
Amphipathic molecules - ANSWER-possess both hydrophilic and hydrophobic
properties.
If orange juice has a pH of 4, then it can be described as - ANSWER-an acidic
solution
The addition of a strong acid like HCl to an aqueous solution would result in -
ANSWER-a decrease in pH
Select the statement that is true when comparing solutions with a pH of 6 and a pH
of 8. - ANSWER-The solution with a pH of 6 has a 100 times higher concentration
of hydrogen ions than a solution with a pH of 8.
A dehydration reaction - ANSWER-is used to form polymers
Glycogen is to animal cells as ________ is to plant cells. - ANSWER-starch
______ is a polymer of glucose - ANSWER-Cellulose
A disaccharide, such as maltose, consists of two molecules of glucose linked by
what type of bond? - ANSWER-glycosidic
Fats and fatty acids - ANSWER-are insoluble in water.
2
, The major class of macromolecules that stores energy and makes up the major
component of plasma membranes are - ANSWER-lipids
A phospholipid has ________ fatty acids attached to glycerol, whereas a fat has
________. - ANSWER-2; 3
The portion of an amino acid that makes the amino acid unique among the 20
different amino acids is - ANSWER-the side chain or R-group.
An amino acid is to a protein as a ________ is to a nucleic acid. - ANSWER-
nucleotide
In order to visualize the fine structure of viruses and cytoskeletal filaments at 10-
25 nanometers in diameter the type of microscopy that would be most effective is -
ANSWER-transmission electron microscopy.
Prokaryotes, such as bacterial cells, differ from eukaryotes in that eukaryotes -
ANSWER-possess membrane-bound organelles.
FtsZ, MreB, and CreS proteins regulate the shape and structure of bacterial
(prokaryote) cells. These proteins are homologous to the ________ in eukaryotes. -
ANSWER-cytoskelaton
Ribosomes are the structures in the cell that produce - ANSWER-proteins
The route that most accurately describes secretory protein movement through the
endomembrane system would be - ANSWER-rough endoplasmic
reticulum→vesicles→ Golgi apparatus→vesicles →plasma membrane.
3
AND CORRECT DETAILED ANSWERS |ALREADY
GRADED A+
Proteins are largely responsible for the traits of living organisms, while ________
provides the blueprint for the organization, development, and function of living
things. - ANSWER-DNA
What feature of genetic mutations can eventually lead to the evolution of new
species? - ANSWER-Mutations produce changes in the DNA sequence of a gene.
The complete genetic composition of an organism is called its - ANSWER-
genome.
A researcher decides to test the scientific validity of the common phrase "An apple
a day keeps the doctor away." What would be a valid hypothesis to investigate this
specific question? - ANSWER-The daily consumption of a single apple does not
change the number of visits to the doctor.
Tritiated hydrogen (3H) differs from hydrogen (1H) in that - ANSWER-) 3H has 2
more neutrons than 1H
When one atom loses an electron to another atom, it results in the formation of -
ANSWER-cations and anions that can form ionic bonds.
What type of bonding is likely to occur between two water molecules or strands of
DNA? - ANSWER-covalent
1
,Carbon and hydrogen have similar electronegativities and combine together to
form hydrocarbon molecules. What type of bonds form between these atoms? -
ANSWER-nonpolar covalent
Amphipathic molecules - ANSWER-possess both hydrophilic and hydrophobic
properties.
If orange juice has a pH of 4, then it can be described as - ANSWER-an acidic
solution
The addition of a strong acid like HCl to an aqueous solution would result in -
ANSWER-a decrease in pH
Select the statement that is true when comparing solutions with a pH of 6 and a pH
of 8. - ANSWER-The solution with a pH of 6 has a 100 times higher concentration
of hydrogen ions than a solution with a pH of 8.
A dehydration reaction - ANSWER-is used to form polymers
Glycogen is to animal cells as ________ is to plant cells. - ANSWER-starch
______ is a polymer of glucose - ANSWER-Cellulose
A disaccharide, such as maltose, consists of two molecules of glucose linked by
what type of bond? - ANSWER-glycosidic
Fats and fatty acids - ANSWER-are insoluble in water.
2
, The major class of macromolecules that stores energy and makes up the major
component of plasma membranes are - ANSWER-lipids
A phospholipid has ________ fatty acids attached to glycerol, whereas a fat has
________. - ANSWER-2; 3
The portion of an amino acid that makes the amino acid unique among the 20
different amino acids is - ANSWER-the side chain or R-group.
An amino acid is to a protein as a ________ is to a nucleic acid. - ANSWER-
nucleotide
In order to visualize the fine structure of viruses and cytoskeletal filaments at 10-
25 nanometers in diameter the type of microscopy that would be most effective is -
ANSWER-transmission electron microscopy.
Prokaryotes, such as bacterial cells, differ from eukaryotes in that eukaryotes -
ANSWER-possess membrane-bound organelles.
FtsZ, MreB, and CreS proteins regulate the shape and structure of bacterial
(prokaryote) cells. These proteins are homologous to the ________ in eukaryotes. -
ANSWER-cytoskelaton
Ribosomes are the structures in the cell that produce - ANSWER-proteins
The route that most accurately describes secretory protein movement through the
endomembrane system would be - ANSWER-rough endoplasmic
reticulum→vesicles→ Golgi apparatus→vesicles →plasma membrane.
3
