BSC 2010 Exam 1 Practice Questions
with Correct Answers
Which of the following is an attribute of living things? - ANSWERSThey must be capable
of acquiring adaptations through evolution.
Which of the following is NOT an attribute of living things? - ANSWERSAll living things
require oxygen.
Which of the following statements best describes the phenomenon of "emergence"? -
ANSWERSThe whole is greater than the sum of the parts.
Which of the following domains is prokaryotic? - ANSWERSArchaea
Which type of organisms within the domain Eukarya is composed of organisms that are
generally unicellular (single-celled)? - ANSWERSprotists
Eukaryotic organisms that decompose dead organisms and absorb the nutrients are
generally found in which kingdom? - ANSWERSFungi
Evolution tends to act at which of the following levels? - ANSWERSpopulation
Which of the following statements most clearly demonstrates inductive reasoning? -
ANSWERSIf the animals observed require organic molecules as nutrients, then it can
be concluded that all animals require organic molecules as nutrients.
At which point in a study is a scientific investigator most likely to use deductive
reasoning? - ANSWERSin establishing a test of a hypothesis
Which of the following four statements, if any, is true regarding essential elements and
living organisms? - ANSWERSAlthough all forms of life require iron, other elements are
required only by certain species.
Consider this statement: Concentrations of trace elements in an environment above
what is required by organisms generally have no effect on those organisms. Which of
the following is a valid response to this statement? - ANSWERSFalse. Elevated
concentrations of some trace elements such as cobalt and chromium can be toxic.
When do hydrogen bonds occur? - ANSWERSwhen partial opposite charges on
molecules come close enough to attract each other
, What is the role of van der Waals interactions in biological molecules? -
ANSWERSAlthough they are weak bonds, van der Waals interactions help to reinforce
the three-dimensional shapes of large molecules.
We can be sure that a mole of table sugar and a mole of vitamin C are equal in their -
ANSWERSnumber of molecules.
Adhesion is best described as which of the following - ANSWERSthe clinging of one
substance to another substance
Which action would involve the greatest transfer of heat? - ANSWERScondensing 5 g of
steam to liquid water
The amount of heat required to change the temperature of 1 g of any substance by 1°C
is defined as __________. - ANSWERSthe specific heat of that substance
Water has __________ than other liquids such as ethanol , reflecting its capacity to
absorb large amounts of heat. - ANSWERSa higher boiling point
Sucrose has a molecular mass of 342 daltons. To make a 2-molar (2 M) solution of
sucrose, __________. - ANSWERSstir 342 g of sucrose in water to dissolve the sugar,
and then add enough water to bring the total volume of the solution up to 0.5 L
A mole of ethyl alcohol weighs 46 g. How many grams of ethyl alcohol are needed to
produce 1 L of a 2-millimolar (2 mM) solution? - ANSWERS0.092 g
Why is the increasing amount of carbon dioxide being taken up by the oceans a cause
for concern? - ANSWERSMore carbon dioxide causes an increase in carbonic acid
(H2CO3), which leads to a decrease in the concentration of carbonate ion (CO32-).
The absorption of human-generated CO2 by the oceans __________. -
ANSWERSincreases the hydrogen ion concentration in the oceans but decreases the
carbonate ion concentration and threatens the livability of the oceans for organisms that
produce calcium carbonate shells
Which chemical group is most likely to be responsible for an organic molecule behaving
as a base - ANSWERSamino
hich action could produce a carbonyl group? - ANSWERSthe replacement of the -OH of
a carboxyl group with hydrogen
What are the six most important chemical elements of life? - ANSWERScarbon,
nitrogen, oxygen, hydrogen, phosphate, sulfur
Using modern equipment, a former graduate student of Stanley Miller recently
reanalyzed the sample results of volcano simulation experiments that Miller conducted
with Correct Answers
Which of the following is an attribute of living things? - ANSWERSThey must be capable
of acquiring adaptations through evolution.
Which of the following is NOT an attribute of living things? - ANSWERSAll living things
require oxygen.
Which of the following statements best describes the phenomenon of "emergence"? -
ANSWERSThe whole is greater than the sum of the parts.
Which of the following domains is prokaryotic? - ANSWERSArchaea
Which type of organisms within the domain Eukarya is composed of organisms that are
generally unicellular (single-celled)? - ANSWERSprotists
Eukaryotic organisms that decompose dead organisms and absorb the nutrients are
generally found in which kingdom? - ANSWERSFungi
Evolution tends to act at which of the following levels? - ANSWERSpopulation
Which of the following statements most clearly demonstrates inductive reasoning? -
ANSWERSIf the animals observed require organic molecules as nutrients, then it can
be concluded that all animals require organic molecules as nutrients.
At which point in a study is a scientific investigator most likely to use deductive
reasoning? - ANSWERSin establishing a test of a hypothesis
Which of the following four statements, if any, is true regarding essential elements and
living organisms? - ANSWERSAlthough all forms of life require iron, other elements are
required only by certain species.
Consider this statement: Concentrations of trace elements in an environment above
what is required by organisms generally have no effect on those organisms. Which of
the following is a valid response to this statement? - ANSWERSFalse. Elevated
concentrations of some trace elements such as cobalt and chromium can be toxic.
When do hydrogen bonds occur? - ANSWERSwhen partial opposite charges on
molecules come close enough to attract each other
, What is the role of van der Waals interactions in biological molecules? -
ANSWERSAlthough they are weak bonds, van der Waals interactions help to reinforce
the three-dimensional shapes of large molecules.
We can be sure that a mole of table sugar and a mole of vitamin C are equal in their -
ANSWERSnumber of molecules.
Adhesion is best described as which of the following - ANSWERSthe clinging of one
substance to another substance
Which action would involve the greatest transfer of heat? - ANSWERScondensing 5 g of
steam to liquid water
The amount of heat required to change the temperature of 1 g of any substance by 1°C
is defined as __________. - ANSWERSthe specific heat of that substance
Water has __________ than other liquids such as ethanol , reflecting its capacity to
absorb large amounts of heat. - ANSWERSa higher boiling point
Sucrose has a molecular mass of 342 daltons. To make a 2-molar (2 M) solution of
sucrose, __________. - ANSWERSstir 342 g of sucrose in water to dissolve the sugar,
and then add enough water to bring the total volume of the solution up to 0.5 L
A mole of ethyl alcohol weighs 46 g. How many grams of ethyl alcohol are needed to
produce 1 L of a 2-millimolar (2 mM) solution? - ANSWERS0.092 g
Why is the increasing amount of carbon dioxide being taken up by the oceans a cause
for concern? - ANSWERSMore carbon dioxide causes an increase in carbonic acid
(H2CO3), which leads to a decrease in the concentration of carbonate ion (CO32-).
The absorption of human-generated CO2 by the oceans __________. -
ANSWERSincreases the hydrogen ion concentration in the oceans but decreases the
carbonate ion concentration and threatens the livability of the oceans for organisms that
produce calcium carbonate shells
Which chemical group is most likely to be responsible for an organic molecule behaving
as a base - ANSWERSamino
hich action could produce a carbonyl group? - ANSWERSthe replacement of the -OH of
a carboxyl group with hydrogen
What are the six most important chemical elements of life? - ANSWERScarbon,
nitrogen, oxygen, hydrogen, phosphate, sulfur
Using modern equipment, a former graduate student of Stanley Miller recently
reanalyzed the sample results of volcano simulation experiments that Miller conducted
