UMKC Bio 109 Midterm EXAM NEWEST ACTUAL EXAM
UMKC BIO 109 MIDTERM EXAM NEWEST ACTUAL EXAM
COMPLETE 150 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
A student finds an organism in a pond and thinks it is a freshwater sponge.
Another student thinks it looks more like an aquatic fungus. How can they decide
whether it is an animal or a fungus?
A. See if it reproduces sexually.
B. Determine whether it is unicellular or multicellular.
C. Look for cell walls under a microscope.
D. See if it is a eukaryote or prokaryote.
E. Figure out whether it is autotrophic or heterotrophic. - Correct Answer-C. Look
for cell walls under a microscope.
Which characteristic is shared by both Cnidarians and Platyhelminthes?
A. Dorsoventrally flattened bodies
B. Flame cells
C. Radial symmetry
D. A digestive system with a single opening - Correct Answer-D. A digestive system
with a single opening
If a species is bilaterally symmetrical, you would expect that species to show all of
the following traits except:
A. having a left side and a right side of the body.
1|Page
, UMKC Bio 109 Midterm EXAM NEWEST ACTUAL EXAM
B. needing only one imaginary cut to divide the animal into mirror-image halves.
C. showing cephalization
D. generally moving actively from place to place.
E. being well equipped to meet the environment equally well from all sides. -
Correct Answer-E. being well equipped to meet the environment equally well
from all sides.
At which developmental stage should one be able to first distinguish a diploblastic
embryo from a triploblastic embryo?
A. fertilization
B. cleavage
C. gastrulation
D. coelom formation
E. metamorphosis - Correct Answer-C. gastrulation
Which of the following is not a key evolutionary branch point in the phylogenetic
tree of animals?
A. no true tissues vs. true tissues
B. radial symmetry vs. bilateral symmetry
C. no body cavity vs. the presence of a body cavity
D. protostome vs. deuterostome development
E. blastopore vs. no blastopore - Correct Answer-E. blastopore vs. no blastopore
Termites eat wood, but many do not produce enzymes themselves that will digest
the cellulose and lignin in the wood. Instead, some termites contain a complex
2|Page
, UMKC Bio 109 Midterm EXAM NEWEST ACTUAL EXAM
community of protozoa, bacteria, and archaea that could help digest the cellulose
and lignin. Imagine an experiment in which termites in Group 1 were fed wood
and termites in Group 2 were fed wood and antibiotics. The amount of energy
that termites extracted from the wood was then measured for each group. If
termites in the two groups gained equal amounts of energy, which of the
conclusions is the most logical?
A. We would conclude that the bacteria did not contribute to digestion of
cellulose and lignin.
B. We would conclude that the protozoa did not contribute to digestion of
cellulose and lignin.
C. We would conclude that the archaea did not contribute to digestion of cellulose
and lignin.
D. We would conclude that none of the three groups were needed to dige -
Correct Answer-A. We would conclude that the bacteria did not contribute to
digestion of cellulose and lignin.
When a non-pathogenic strain of pneumoniae is mixed with a heat-killed
pathogenic strain, the non-pathogenic strain is converted to the pathogenic form.
The process responsible for this conversion is called:
A. conjugation
B. sexual reproduction
C. transformation
D. translocation
E. none of the above - Correct Answer-C. transformation
In the polymerase chain reaction (PCR), DNA is synthesized from a template at
temperatures high enough to dissociate double-stranded DNA into single strands,
3|Page
, UMKC Bio 109 Midterm EXAM NEWEST ACTUAL EXAM
higher than 70° C. To find a DNA polymerase (the enzyme that carries out DNA
synthesis) that would be optimally suited for PCR you should search within the:
A. extreme halophiles
B. Gram negative bacteria
C. methanogens
D. extreme thermophiles
E. chemoautotrophs - Correct Answer-D. extreme thermophiles
Some antibiotics can block protein synthesis in bacteria without affecting the cells
of the eukaryotic host. This is possible because:
A. bacteria can use a much greater variety of food sources than can eukaryotes
B. translation occurs in the nucleus while transcription takes place in the
cytoplasm
C. bacterial ribosomes are different than eukaryotic ribosomes in protein content
and RNA content
D. ribosomes are not found in prokaryotes - Correct Answer-C. bacterial
ribosomes are different than eukaryotic ribosomes in protein content and RNA
content
Protists are different from prokaryotes because protists have:
A. a cell wall
B. Answer a nuclear membrane
C. flagella
D. autotrophic nutrition
E. ribosomes - Correct Answer-B. Answer a nuclear membrane
4|Page
UMKC BIO 109 MIDTERM EXAM NEWEST ACTUAL EXAM
COMPLETE 150 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+||BRAND NEW
VERSION!!
A student finds an organism in a pond and thinks it is a freshwater sponge.
Another student thinks it looks more like an aquatic fungus. How can they decide
whether it is an animal or a fungus?
A. See if it reproduces sexually.
B. Determine whether it is unicellular or multicellular.
C. Look for cell walls under a microscope.
D. See if it is a eukaryote or prokaryote.
E. Figure out whether it is autotrophic or heterotrophic. - Correct Answer-C. Look
for cell walls under a microscope.
Which characteristic is shared by both Cnidarians and Platyhelminthes?
A. Dorsoventrally flattened bodies
B. Flame cells
C. Radial symmetry
D. A digestive system with a single opening - Correct Answer-D. A digestive system
with a single opening
If a species is bilaterally symmetrical, you would expect that species to show all of
the following traits except:
A. having a left side and a right side of the body.
1|Page
, UMKC Bio 109 Midterm EXAM NEWEST ACTUAL EXAM
B. needing only one imaginary cut to divide the animal into mirror-image halves.
C. showing cephalization
D. generally moving actively from place to place.
E. being well equipped to meet the environment equally well from all sides. -
Correct Answer-E. being well equipped to meet the environment equally well
from all sides.
At which developmental stage should one be able to first distinguish a diploblastic
embryo from a triploblastic embryo?
A. fertilization
B. cleavage
C. gastrulation
D. coelom formation
E. metamorphosis - Correct Answer-C. gastrulation
Which of the following is not a key evolutionary branch point in the phylogenetic
tree of animals?
A. no true tissues vs. true tissues
B. radial symmetry vs. bilateral symmetry
C. no body cavity vs. the presence of a body cavity
D. protostome vs. deuterostome development
E. blastopore vs. no blastopore - Correct Answer-E. blastopore vs. no blastopore
Termites eat wood, but many do not produce enzymes themselves that will digest
the cellulose and lignin in the wood. Instead, some termites contain a complex
2|Page
, UMKC Bio 109 Midterm EXAM NEWEST ACTUAL EXAM
community of protozoa, bacteria, and archaea that could help digest the cellulose
and lignin. Imagine an experiment in which termites in Group 1 were fed wood
and termites in Group 2 were fed wood and antibiotics. The amount of energy
that termites extracted from the wood was then measured for each group. If
termites in the two groups gained equal amounts of energy, which of the
conclusions is the most logical?
A. We would conclude that the bacteria did not contribute to digestion of
cellulose and lignin.
B. We would conclude that the protozoa did not contribute to digestion of
cellulose and lignin.
C. We would conclude that the archaea did not contribute to digestion of cellulose
and lignin.
D. We would conclude that none of the three groups were needed to dige -
Correct Answer-A. We would conclude that the bacteria did not contribute to
digestion of cellulose and lignin.
When a non-pathogenic strain of pneumoniae is mixed with a heat-killed
pathogenic strain, the non-pathogenic strain is converted to the pathogenic form.
The process responsible for this conversion is called:
A. conjugation
B. sexual reproduction
C. transformation
D. translocation
E. none of the above - Correct Answer-C. transformation
In the polymerase chain reaction (PCR), DNA is synthesized from a template at
temperatures high enough to dissociate double-stranded DNA into single strands,
3|Page
, UMKC Bio 109 Midterm EXAM NEWEST ACTUAL EXAM
higher than 70° C. To find a DNA polymerase (the enzyme that carries out DNA
synthesis) that would be optimally suited for PCR you should search within the:
A. extreme halophiles
B. Gram negative bacteria
C. methanogens
D. extreme thermophiles
E. chemoautotrophs - Correct Answer-D. extreme thermophiles
Some antibiotics can block protein synthesis in bacteria without affecting the cells
of the eukaryotic host. This is possible because:
A. bacteria can use a much greater variety of food sources than can eukaryotes
B. translation occurs in the nucleus while transcription takes place in the
cytoplasm
C. bacterial ribosomes are different than eukaryotic ribosomes in protein content
and RNA content
D. ribosomes are not found in prokaryotes - Correct Answer-C. bacterial
ribosomes are different than eukaryotic ribosomes in protein content and RNA
content
Protists are different from prokaryotes because protists have:
A. a cell wall
B. Answer a nuclear membrane
C. flagella
D. autotrophic nutrition
E. ribosomes - Correct Answer-B. Answer a nuclear membrane
4|Page
