BIL 150 Final (all quizzes) Complete Exam Questions with Correct Answers
Question 1:
Which of the following is NOT a characteristic of livings systems? Photosynthesis
Energy Processing Regulation Reproduction
Answer:
a. Photosynthesis
Question 2:
Which of the following instructions contribute to a productive experimental design? include a
small sample size
alter only one condition between the control and the experimental condition do not include a
control, it is a waste of resources
do not run the experiment more than once, the results might become confusing
Answer:
b. alter only one condition between the control and the experimental condition
Question 3:
Following a scientific method, which of the following is the correct order of steps? Observation
--> Analysis --> Hypothesis --> Conclusion --> Communicate results --> Experiment
Observation --> Hypothesis --> Experiment --> Analysis --> Conclusion --> Communicate results
Observation --> Hypothesis --> Experiment --> Communicate results --> Analysis -->
Conclusion
Experiment --> Hypothesis --> Observation --> Analysis --> Conclusion --> Communicate results
Answer:
b. Observation --> Hypothesis --> Experiment --> Analysis --> Conclusion --> Communicate
results
Question 4:
Use the information in the graph to answer the following question. Which of the following
claims is best supported using the graph?
Unplowed soil contains more earthworms than plowed soil. More earthworms are found in the
soil in spring than in fall. Plowed soil contains more earthworms than unplowed soil. Plowing
has no effect on the number of earthworms in the soil.
Answer:
a. Unplowed soil contains more earthworms than plowed soil.
,Question 5:
In an experiment to test the hypothesis, "temperature controls sex determination in crocodile
embryos" a researcher incubates crocodile eggs in incubators set at different
temperatures.Which of the following correctly identifies the dependent and independent
variables in the experiment?type of incubator is dependent, temperature is independent
temperature is dependent, sex is independentsex is dependent, temperature is
independenttemperature is dependent, type of incubator is independent
Answer:
c. sex is dependent, temperature is independent
Question 6:
Which of the following is an example of qualitative data? T he contents of the stomach are
mixed every 20 seconds. The fish swam in a zigzag motion.
The six pairs of robins hatched an average of three chicks each. The temperature decreased
from 20C to 15C.
Answer:
b. The fish swam in a zigzag motion.
Question 7:
How does a scientific theory differ from a scientific hypothesis? Confirmed theories become
scientific laws; hypotheses become theories. Theories are proposed to test scientific
hypotheses.
Theories are usually an explanation for a more general phenomenon and are supported by a
large body of evidence; hypotheses typically address more specific issues.
Hypotheses are usually an explanation for a more general phenomenon and are supported by a
large body of evidence ; theories typically address more specific issues.
Answer:
c. Theories are usually an explanation for a more general phenomenon and are supported by a
large body of evidence; hypotheses typically address more specific issues.
Question 8:
Which of these is an example of inductive reasoning?
These organisms live in sunny regions. Therefore, they are using photosynthesis. If protists are
all single-celled, then they are incapable of aggregating.
Hundreds of individuals of a species have been observed and all are photosynthetic; therefore,
the species is photosynthetic.
If two species are members of the same genus, they are more alike than each of them could be
to a different genus.
Answer:
,c. Hundreds of individuals of a species have been observed and all are photosynthetic;
therefore, the species is photosynthetic.
c. Hundreds of individuals of a species have been observed and all are photosynthetic;
therefore, the species is photosynthetic.
c. Hundreds of individuals of a species have been observed and all are photosynthetic;
therefore, the species is photosynthetic.
c. Hundreds of individuals of a species have been observed and all are photosynthetic;
therefore, the species is photosynthetic.
Question 9:
Which of the following is the quality of a good scientific hypothesis? It should be testable in a
valid period of time
It always produces quantitative data It relies on controversial factors
It always produces qualitative data
Answer:
a. It should be testable in a valid period of time
Question 10:
What will happen to a red blood cell (RBC), which has an internal ion content of about 0.9%, if it
is placed into a beaker of pure water (ion content = 0.0%)?
The cell will shrink because the water in the beaker is hypotonic relative to the cytoplasm of the
RBC. The cell will remain the same size because the solution outside the cell is isotonic.
The cell will swell because the water in the beaker is hypotonic relative to the cytoplasm of the
RBC. The cell will shrink because the water in the beaker is hypertonic relative to the cytoplasm
of the RBC.
Answer:
c. The cell will swell because the water in the beaker is hypotonic relative to the cytoplasm of
the RBC.
Question 11:
Tay-Sachs disease is a human genetic disorder that results in cellular accumulation of very large,
complex, undigested lipids. Which of the following organelles is most likely defective in
Tay-Sachs disease?
the Golgi apparatus
the rough endoplasmic reticulum the lysosome
the smooth endoplasmic reticulum
Answer:
c. the lysosome
, Question 12:
Which of the following types of molecules will diffuse through a cell membrane most readily?
large polar molecules
large hydrophobic molecules small hydrophobic molecules small ionic molecules
Answer:
c. small hydrophobic moleculesc. small hydrophobic molecules
Question 13:
c. small hydrophobic molecules c. small hydrophobic molecules Which of the following
parameters is most likely to limit the maximum size of a cell? the volume of the endomembrane
system
the number of mitochondria in the cytoplasm the absence of a nucleus
the ratio of surface area to volume of cytoplasm
Answer:
d. the ratio of surface area to volume of cytoplasm
Question 14:
Which of the following statements best describes the structure of a membrane based on the
fluid mosaic model?
The membrane is composed of a mosaic of fluid polysaccharides and amphipathic proteins.
The membrane is composed of a single layer of fluid phospholipids between two layers of
hydrophilic proteins.
The membrane is composed of a fluid bilayer of phospholipids with embedded amphipathic
proteins. The membrane is composed of a fluid bilayer of phospholipids between two layers of
hydrophilic proteins.
Answer:
c. The membrane is composed of a fluid bilayer of phospholipids with embedded amphipathic
proteins.
Question 15:
Examination of a cell by transmission electron microscopy reveals a high density of ribosomes in
the cytoplasm. This observation suggests that the cell is actively producing large amounts of
which of the following molecules?
polysaccharides (carbohydrates) lipids
nucleic acids proteins
Answer:
d. proteins
Question 1:
Which of the following is NOT a characteristic of livings systems? Photosynthesis
Energy Processing Regulation Reproduction
Answer:
a. Photosynthesis
Question 2:
Which of the following instructions contribute to a productive experimental design? include a
small sample size
alter only one condition between the control and the experimental condition do not include a
control, it is a waste of resources
do not run the experiment more than once, the results might become confusing
Answer:
b. alter only one condition between the control and the experimental condition
Question 3:
Following a scientific method, which of the following is the correct order of steps? Observation
--> Analysis --> Hypothesis --> Conclusion --> Communicate results --> Experiment
Observation --> Hypothesis --> Experiment --> Analysis --> Conclusion --> Communicate results
Observation --> Hypothesis --> Experiment --> Communicate results --> Analysis -->
Conclusion
Experiment --> Hypothesis --> Observation --> Analysis --> Conclusion --> Communicate results
Answer:
b. Observation --> Hypothesis --> Experiment --> Analysis --> Conclusion --> Communicate
results
Question 4:
Use the information in the graph to answer the following question. Which of the following
claims is best supported using the graph?
Unplowed soil contains more earthworms than plowed soil. More earthworms are found in the
soil in spring than in fall. Plowed soil contains more earthworms than unplowed soil. Plowing
has no effect on the number of earthworms in the soil.
Answer:
a. Unplowed soil contains more earthworms than plowed soil.
,Question 5:
In an experiment to test the hypothesis, "temperature controls sex determination in crocodile
embryos" a researcher incubates crocodile eggs in incubators set at different
temperatures.Which of the following correctly identifies the dependent and independent
variables in the experiment?type of incubator is dependent, temperature is independent
temperature is dependent, sex is independentsex is dependent, temperature is
independenttemperature is dependent, type of incubator is independent
Answer:
c. sex is dependent, temperature is independent
Question 6:
Which of the following is an example of qualitative data? T he contents of the stomach are
mixed every 20 seconds. The fish swam in a zigzag motion.
The six pairs of robins hatched an average of three chicks each. The temperature decreased
from 20C to 15C.
Answer:
b. The fish swam in a zigzag motion.
Question 7:
How does a scientific theory differ from a scientific hypothesis? Confirmed theories become
scientific laws; hypotheses become theories. Theories are proposed to test scientific
hypotheses.
Theories are usually an explanation for a more general phenomenon and are supported by a
large body of evidence; hypotheses typically address more specific issues.
Hypotheses are usually an explanation for a more general phenomenon and are supported by a
large body of evidence ; theories typically address more specific issues.
Answer:
c. Theories are usually an explanation for a more general phenomenon and are supported by a
large body of evidence; hypotheses typically address more specific issues.
Question 8:
Which of these is an example of inductive reasoning?
These organisms live in sunny regions. Therefore, they are using photosynthesis. If protists are
all single-celled, then they are incapable of aggregating.
Hundreds of individuals of a species have been observed and all are photosynthetic; therefore,
the species is photosynthetic.
If two species are members of the same genus, they are more alike than each of them could be
to a different genus.
Answer:
,c. Hundreds of individuals of a species have been observed and all are photosynthetic;
therefore, the species is photosynthetic.
c. Hundreds of individuals of a species have been observed and all are photosynthetic;
therefore, the species is photosynthetic.
c. Hundreds of individuals of a species have been observed and all are photosynthetic;
therefore, the species is photosynthetic.
c. Hundreds of individuals of a species have been observed and all are photosynthetic;
therefore, the species is photosynthetic.
Question 9:
Which of the following is the quality of a good scientific hypothesis? It should be testable in a
valid period of time
It always produces quantitative data It relies on controversial factors
It always produces qualitative data
Answer:
a. It should be testable in a valid period of time
Question 10:
What will happen to a red blood cell (RBC), which has an internal ion content of about 0.9%, if it
is placed into a beaker of pure water (ion content = 0.0%)?
The cell will shrink because the water in the beaker is hypotonic relative to the cytoplasm of the
RBC. The cell will remain the same size because the solution outside the cell is isotonic.
The cell will swell because the water in the beaker is hypotonic relative to the cytoplasm of the
RBC. The cell will shrink because the water in the beaker is hypertonic relative to the cytoplasm
of the RBC.
Answer:
c. The cell will swell because the water in the beaker is hypotonic relative to the cytoplasm of
the RBC.
Question 11:
Tay-Sachs disease is a human genetic disorder that results in cellular accumulation of very large,
complex, undigested lipids. Which of the following organelles is most likely defective in
Tay-Sachs disease?
the Golgi apparatus
the rough endoplasmic reticulum the lysosome
the smooth endoplasmic reticulum
Answer:
c. the lysosome
, Question 12:
Which of the following types of molecules will diffuse through a cell membrane most readily?
large polar molecules
large hydrophobic molecules small hydrophobic molecules small ionic molecules
Answer:
c. small hydrophobic moleculesc. small hydrophobic molecules
Question 13:
c. small hydrophobic molecules c. small hydrophobic molecules Which of the following
parameters is most likely to limit the maximum size of a cell? the volume of the endomembrane
system
the number of mitochondria in the cytoplasm the absence of a nucleus
the ratio of surface area to volume of cytoplasm
Answer:
d. the ratio of surface area to volume of cytoplasm
Question 14:
Which of the following statements best describes the structure of a membrane based on the
fluid mosaic model?
The membrane is composed of a mosaic of fluid polysaccharides and amphipathic proteins.
The membrane is composed of a single layer of fluid phospholipids between two layers of
hydrophilic proteins.
The membrane is composed of a fluid bilayer of phospholipids with embedded amphipathic
proteins. The membrane is composed of a fluid bilayer of phospholipids between two layers of
hydrophilic proteins.
Answer:
c. The membrane is composed of a fluid bilayer of phospholipids with embedded amphipathic
proteins.
Question 15:
Examination of a cell by transmission electron microscopy reveals a high density of ribosomes in
the cytoplasm. This observation suggests that the cell is actively producing large amounts of
which of the following molecules?
polysaccharides (carbohydrates) lipids
nucleic acids proteins
Answer:
d. proteins
