ASU BIO 181 PRACTICE
EXAM 1 WITH CORRECT
ANSWERS
A Cell __
a. is the smallest entity studied by biologists.
b. may be a distinct entity, a building block of a more complex organism, or (as
seen among a few extant species) alternating between these two extreme life
styles representing, perhaps, an evolutionary link between them.
c. All the statements including this one are correct.
d. can be composed of many types of tissues.
e. is found only in plants and animals. - correct answerAnswer: b.
may be a distinct entity, a building block of a more complex organism, or (as seen
among a few extant species) alternating between these two extreme life styles
representing, perhaps, an evolutionary link between them.
A compound contains hydroxyl groups as its predominant functional groups.
Which of the following statements is true concerning this compound?
It is hydrophobic.
It should dissolve in a nonpolar solvent.
It should dissolve in water.
It lacks an asymmetric carbon, and it is probably a fat or lipid.
It won't form hydrogen bonds with water. - correct answerAnswer:
,It should dissolve in water.
A controlled experiment _____.
includes one group for which the scientist controls all variables
includes at least two groups, one of which does not receive the experimental
treatment
is repeated many times to ensure that the results are accurate
includes at least two groups, one differing from the other by two or more
variables
proceeds at a slow pace to guarantee that the scientist can carefully observe all
reactions and process all experimental data - correct answerAnswer:
includes at least two groups, one of which does not receive the experimental
treatment
A phylogenetic tree
shows evolutionary relationships.
All of the answers including this one are correct.
relies on evidence from fossils, metabolic processes, and molecular analyses of
genomes.
helps us understand the history and relationships of living organisms.
shows the order in which populations split and evolved into new species. - correct
answerAnswer:
All of the answers including this one are correct.
A water sample from a hot thermal vent contained a single-celled organism that
had a cell wall but lacked a nucleus. Choose the most likely classification from the
list below.
, Fungi
Protista
Archaea
Eukarya
Animalia - correct answerAnswer:
Archaea
Acid rain is a serious environmental problem. A sample of rainwater collected in
the Adirondack Mountains had an H+ concentration of 10-4 mol/L. The pH of this
sample was
4.
0.0001.
-4
0.
10,000. - correct answerAnswer:
4
All cells in a complicated multicellular organism
randomly express parts of the genome.
control the expression of the genome.
express the same parts of the genome at the same time during development.
have the same function. - correct answerAnswer:
control the expression of the genome.
All living organisms need an input of _______ from their environment.
a. energy
b. food
c. genetic information
d. sunlight - correct answerAnswer:
EXAM 1 WITH CORRECT
ANSWERS
A Cell __
a. is the smallest entity studied by biologists.
b. may be a distinct entity, a building block of a more complex organism, or (as
seen among a few extant species) alternating between these two extreme life
styles representing, perhaps, an evolutionary link between them.
c. All the statements including this one are correct.
d. can be composed of many types of tissues.
e. is found only in plants and animals. - correct answerAnswer: b.
may be a distinct entity, a building block of a more complex organism, or (as seen
among a few extant species) alternating between these two extreme life styles
representing, perhaps, an evolutionary link between them.
A compound contains hydroxyl groups as its predominant functional groups.
Which of the following statements is true concerning this compound?
It is hydrophobic.
It should dissolve in a nonpolar solvent.
It should dissolve in water.
It lacks an asymmetric carbon, and it is probably a fat or lipid.
It won't form hydrogen bonds with water. - correct answerAnswer:
,It should dissolve in water.
A controlled experiment _____.
includes one group for which the scientist controls all variables
includes at least two groups, one of which does not receive the experimental
treatment
is repeated many times to ensure that the results are accurate
includes at least two groups, one differing from the other by two or more
variables
proceeds at a slow pace to guarantee that the scientist can carefully observe all
reactions and process all experimental data - correct answerAnswer:
includes at least two groups, one of which does not receive the experimental
treatment
A phylogenetic tree
shows evolutionary relationships.
All of the answers including this one are correct.
relies on evidence from fossils, metabolic processes, and molecular analyses of
genomes.
helps us understand the history and relationships of living organisms.
shows the order in which populations split and evolved into new species. - correct
answerAnswer:
All of the answers including this one are correct.
A water sample from a hot thermal vent contained a single-celled organism that
had a cell wall but lacked a nucleus. Choose the most likely classification from the
list below.
, Fungi
Protista
Archaea
Eukarya
Animalia - correct answerAnswer:
Archaea
Acid rain is a serious environmental problem. A sample of rainwater collected in
the Adirondack Mountains had an H+ concentration of 10-4 mol/L. The pH of this
sample was
4.
0.0001.
-4
0.
10,000. - correct answerAnswer:
4
All cells in a complicated multicellular organism
randomly express parts of the genome.
control the expression of the genome.
express the same parts of the genome at the same time during development.
have the same function. - correct answerAnswer:
control the expression of the genome.
All living organisms need an input of _______ from their environment.
a. energy
b. food
c. genetic information
d. sunlight - correct answerAnswer:
