BSC1005 Final Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
A scientific hypothesis has which of the following features?
A. it is able to be proven false
B. it is falsifiable
C. it is a theory about something
D. it is not based on observations
E. it is based solely on correlations - CORRECT ANSWER - it is falsifiable
A scientific theory is
A. an explanation supported by a very large amount of experimental evidence
B. an explanation that cannot be modified in light of new experimental evidence
C. A + B
D. little more than an educated guess
E. any testable explanation for a question or problem - CORRECT ANSWER - an
explanation supported by a very large amount of experimental evidence
Homeostasis is a process by which organisms strive to maintain
A. constant internal conditions alone
B. constant external conditions alone
C. constant intracellular conditions alone
D. constant extracellular conditions alone
E. constant intercellular conditions alone - CORRECT ANSWER - constant internal
conditions alone
,Macromolecules are large molecules that are typically formed by combining smaller units called
monomers
A. true
B. sometimes
C. rarely
D. mostly
E. false - CORRECT ANSWER - true
Which is a key difference between prokaryotes and eukaryotes
I. membrane- bound organelles II. membrane-bound nuclei III. cellular membrane
A. I only
B. II ony
C. III only
D. I and II
E. II and III only - CORRECT ANSWER - I and II
Which of the following statements is correct?
A. a population is part of a community and a community is part of an ecosystem
B. an ecosystem is part of a community and a community is part of a population
C. a population is part of an ecosystem and an ecosystem is part of a community
D. an ecosystem is part of a population and a community defines a population - CORRECT
ANSWER - a population is part of a community and a community is part of an ecosystem
Which of the taxonomical groupings has the most members?
A. order
,B. family
C. domain
D. species
E. genus - CORRECT ANSWER - domain
Mehran has heard from some of his teammates that drinking a high protein supplement after
football training will improve his muscle mass. He decides to test this hypothesis by comparing
the muscle mass of teammates who drink the high protein drink with a control group who drink
only water. Which of the following would be the best control for his experiments?
A. randomly selected teammates who are given only small amounts of a protein drink
B. randomly selected teammates in training who are given a placebo instead of a protein drink
C. volunteers from the general campus population who are not given any protein drink
D. volunteers from the football team who agree to take a placebo instead of a protein drink
E. all his coaches - CORRECT ANSWER - randomly selected teammates in training who
are given a placebo instead of a protein drink
The purpose of double-blind experiments is to
A. confuse the subjects
B. ensure that the hypothesis us scientifically testable
C. see if the experimental group will respond differently than the control group
D. help the subjects in an experiment understand the treatment they are receiving
E. minimize the effects of human bias on the results - CORRECT ANSWER - minimize
the effects of human bias on the results
The most trustworthy source of scientific information is
A. anecdotal evidence
B. actor endorsement
, C. paid advertisement
D. peer-reviewed research publications
E. science reports in newspapers and on TV - CORRECT ANSWER - peer-reviewed
research publications
What is the importance of peer review in the scientific process?
A. it helps a scientific formulate a hypothesis
B. it helps a scientist choose test subjects
C. it ensures that a study has been appropriately designed and correctly interpreted
D. it helps the scientist collect data
E. it is the first step in any scientific study - CORRECT ANSWER - it ensures that a study
has been appropriately designed and correctly interpreted
you are reviewing the results of five similar experiments, but each had a different sample size.
Which of the following experiments has the most reliable results?
A. the experiment with a sample size of 10
B. the experiment with a sample size of 100
C. the experiment with a sample size of 1000
D. the experiment with a sample size of 10,000
E. the experiment with a sample size of 100,000 - CORRECT ANSWER - the experiment
with a sample size of 100,000
Carbon has ___ potential bonding sites
A. 1
B. 2
C. 4
Exam Questions and CORRECT Answers
A scientific hypothesis has which of the following features?
A. it is able to be proven false
B. it is falsifiable
C. it is a theory about something
D. it is not based on observations
E. it is based solely on correlations - CORRECT ANSWER - it is falsifiable
A scientific theory is
A. an explanation supported by a very large amount of experimental evidence
B. an explanation that cannot be modified in light of new experimental evidence
C. A + B
D. little more than an educated guess
E. any testable explanation for a question or problem - CORRECT ANSWER - an
explanation supported by a very large amount of experimental evidence
Homeostasis is a process by which organisms strive to maintain
A. constant internal conditions alone
B. constant external conditions alone
C. constant intracellular conditions alone
D. constant extracellular conditions alone
E. constant intercellular conditions alone - CORRECT ANSWER - constant internal
conditions alone
,Macromolecules are large molecules that are typically formed by combining smaller units called
monomers
A. true
B. sometimes
C. rarely
D. mostly
E. false - CORRECT ANSWER - true
Which is a key difference between prokaryotes and eukaryotes
I. membrane- bound organelles II. membrane-bound nuclei III. cellular membrane
A. I only
B. II ony
C. III only
D. I and II
E. II and III only - CORRECT ANSWER - I and II
Which of the following statements is correct?
A. a population is part of a community and a community is part of an ecosystem
B. an ecosystem is part of a community and a community is part of a population
C. a population is part of an ecosystem and an ecosystem is part of a community
D. an ecosystem is part of a population and a community defines a population - CORRECT
ANSWER - a population is part of a community and a community is part of an ecosystem
Which of the taxonomical groupings has the most members?
A. order
,B. family
C. domain
D. species
E. genus - CORRECT ANSWER - domain
Mehran has heard from some of his teammates that drinking a high protein supplement after
football training will improve his muscle mass. He decides to test this hypothesis by comparing
the muscle mass of teammates who drink the high protein drink with a control group who drink
only water. Which of the following would be the best control for his experiments?
A. randomly selected teammates who are given only small amounts of a protein drink
B. randomly selected teammates in training who are given a placebo instead of a protein drink
C. volunteers from the general campus population who are not given any protein drink
D. volunteers from the football team who agree to take a placebo instead of a protein drink
E. all his coaches - CORRECT ANSWER - randomly selected teammates in training who
are given a placebo instead of a protein drink
The purpose of double-blind experiments is to
A. confuse the subjects
B. ensure that the hypothesis us scientifically testable
C. see if the experimental group will respond differently than the control group
D. help the subjects in an experiment understand the treatment they are receiving
E. minimize the effects of human bias on the results - CORRECT ANSWER - minimize
the effects of human bias on the results
The most trustworthy source of scientific information is
A. anecdotal evidence
B. actor endorsement
, C. paid advertisement
D. peer-reviewed research publications
E. science reports in newspapers and on TV - CORRECT ANSWER - peer-reviewed
research publications
What is the importance of peer review in the scientific process?
A. it helps a scientific formulate a hypothesis
B. it helps a scientist choose test subjects
C. it ensures that a study has been appropriately designed and correctly interpreted
D. it helps the scientist collect data
E. it is the first step in any scientific study - CORRECT ANSWER - it ensures that a study
has been appropriately designed and correctly interpreted
you are reviewing the results of five similar experiments, but each had a different sample size.
Which of the following experiments has the most reliable results?
A. the experiment with a sample size of 10
B. the experiment with a sample size of 100
C. the experiment with a sample size of 1000
D. the experiment with a sample size of 10,000
E. the experiment with a sample size of 100,000 - CORRECT ANSWER - the experiment
with a sample size of 100,000
Carbon has ___ potential bonding sites
A. 1
B. 2
C. 4
