BIO 101 Final Exam comprehensive
Questions and Answers with Verified
Solutions
Question 1:
A scientist researchers the effect of amoxicillin on crayfish weight. The
dependent variable is _________________.
Answer:
Crayfish weight
Question 2:
The classification of organisms is divided into three domains. The two
prokaryotes are [a] and [b] and the third one is [c] which means it contains
a nucleus.
Answer:
(a) Archaea (b) Bacteria (c) Eukarya
Question 3:
The most inclusive category in biological classification is
__________________.
Answer:
Domain
Question 4:
Identify the independent variable in the problem below: How does the
temperature of a substance affect the amount of space it occupies?
Answer:
Temperature
,Question 5:
A hypothesis is tested by: (a) a prediction (b) experimentation (c) analysis
of results (d) formulation of a theory
Answer:
(b) experimentation
Question 6:
Dr. James isolated Staphylococcus aureus, a type of bacteria, from the
leg wound of a ten year old boy. He suspected these bacteria would grow
better at body temperature than room temperature (72°F), but thought
that he should collect data to support his thinking. Dr. James introduced
the same number
Answer:
(b)
Question 7:
In an experiment researching the effect of temperature on bacterial
growth certain factors must remain constant among the groups. To
ensure a controlled experiment all of the following conditions (variables)
should be identical in Group 1 and Group 2: (a) type of bacteria,
temperature, and incubation period (b) temperature and amount of initial
inoculum (bacteria used) (c) type of bacteria, incubation period, amount
of
Answer:
(c)
, Question 8:
If you were to create a graph displaying data on the following question
"Which coffee brand has the highest quantity of caffeine?" what would
you put on the Y axis? (a) Brand of coffee (b) Quantity of caffeine in mg
(c) None of the above (d) Either one it doesn't matter
Answer:
(b)
Question 9:
If you were to design an experiment testing the effect of number of
cigarettes on heart rate, identify the following: (1) Independent variable
(2) Dependent variable (3) A constant you need to consider for the
experiment (4) An appropriate sample size (number of participants you
would need for the study)
Answer:
1. The independent variable would be number of cigarettes. 2. The
dependent variable would be heart rate (bpm). 3. A constant could be age
of participants, gender, weight, smoking habit, overall health, etc.... 4.
Sample size would need to be a minimum of 3, but for human studies one
would suggest 10, 30 (considered statistically large), or more.
Question 10:
What is the atomic mass of Nitrogen? (You must express your answer
rounded to the hundredth)
Answer:
14.01
Questions and Answers with Verified
Solutions
Question 1:
A scientist researchers the effect of amoxicillin on crayfish weight. The
dependent variable is _________________.
Answer:
Crayfish weight
Question 2:
The classification of organisms is divided into three domains. The two
prokaryotes are [a] and [b] and the third one is [c] which means it contains
a nucleus.
Answer:
(a) Archaea (b) Bacteria (c) Eukarya
Question 3:
The most inclusive category in biological classification is
__________________.
Answer:
Domain
Question 4:
Identify the independent variable in the problem below: How does the
temperature of a substance affect the amount of space it occupies?
Answer:
Temperature
,Question 5:
A hypothesis is tested by: (a) a prediction (b) experimentation (c) analysis
of results (d) formulation of a theory
Answer:
(b) experimentation
Question 6:
Dr. James isolated Staphylococcus aureus, a type of bacteria, from the
leg wound of a ten year old boy. He suspected these bacteria would grow
better at body temperature than room temperature (72°F), but thought
that he should collect data to support his thinking. Dr. James introduced
the same number
Answer:
(b)
Question 7:
In an experiment researching the effect of temperature on bacterial
growth certain factors must remain constant among the groups. To
ensure a controlled experiment all of the following conditions (variables)
should be identical in Group 1 and Group 2: (a) type of bacteria,
temperature, and incubation period (b) temperature and amount of initial
inoculum (bacteria used) (c) type of bacteria, incubation period, amount
of
Answer:
(c)
, Question 8:
If you were to create a graph displaying data on the following question
"Which coffee brand has the highest quantity of caffeine?" what would
you put on the Y axis? (a) Brand of coffee (b) Quantity of caffeine in mg
(c) None of the above (d) Either one it doesn't matter
Answer:
(b)
Question 9:
If you were to design an experiment testing the effect of number of
cigarettes on heart rate, identify the following: (1) Independent variable
(2) Dependent variable (3) A constant you need to consider for the
experiment (4) An appropriate sample size (number of participants you
would need for the study)
Answer:
1. The independent variable would be number of cigarettes. 2. The
dependent variable would be heart rate (bpm). 3. A constant could be age
of participants, gender, weight, smoking habit, overall health, etc.... 4.
Sample size would need to be a minimum of 3, but for human studies one
would suggest 10, 30 (considered statistically large), or more.
Question 10:
What is the atomic mass of Nitrogen? (You must express your answer
rounded to the hundredth)
Answer:
14.01
