BS 161 MSU - Exam 1 UPDATED ACTUAL
Questions and CORRECT Answers
1. Based on the primer on scale and approximation, the length of a ribosome is approximately
____ orders of magnitude smaller than the length of a eukaryotic cell and approximately ____
orders of magnitude larger than the length of an amino acid.
a. 3, 2
b. 100, 10
c. 1, 5
d. 0,1 - CORRECT ANSWER - a. 3, 2
Translation is the process by which:
a. proteins are synthesized from DNA molecules.
b. RNA is synthesized from protein.
c. RNA is synthesized from DNA.
d. DNA is synthesized from protein.
e. proteins are synthesized from RNA molecules. - CORRECT ANSWER - e. proteins are
synthesized from RNA molecules.
All organisms use which of the following molecules to carry out cellular work such as growth
and moving substances?
a. membranes
b. DNA
c. ATP
d. RNA
,e. None of the above - CORRECT ANSWER - c. ATP
A major difference between eukaryotic cells and prokaryotic cells is that:
a. neither eukaryotic cells nor prokaryotic cells have a nucleus.
b. both eukaryotic cells and prokaryotic cells have a nucleus.
c. prokaryotic cells have a nucleus and eukaryotic cells do not.
d. eukaryotic cells have a nucleus and prokaryotic cells do not. - CORRECT ANSWER -
d. eukaryotic cells have a nucleus and prokaryotic cells do not.
True or False:
Observations allow scientists to draw tentative explanations called hypotheses. - CORRECT
ANSWER - True
Which of the following is NOT a key feature of individual cells?
a. the presence of a plasma membrane
b. the ability to store and transit information using nucleic acids
c. the presence of a nucleus
d. the ability to harvest and transform energy from the environment - CORRECT
ANSWER - c. the presence of a nucleus
, Nucleic acids are important information storage molecules present in virtually every cell. Which
of the following process are carried out by a cell when it accesses that information in the DNA of
the genes?
a. DNA replication and translation
b. DNA replication and transcription
c. transcription and translation - CORRECT ANSWER - c. transcription and translation
The energy before a chemical reaction and the energy after a chemical reaction is the same. This
is an example of:
a. The second law of thermodynamics
b. The first law of thermodynamics
c. The scientific method
d. Evolution by natural selection - CORRECT ANSWER - b. The first law of
thermodynamics
If you were to compare the entropy of a dog to that of a bucket of water, which of the following
statement would be TRUE?
a. The entropy of the bucket of water and the entropy of the dog would be equal.
b. The entropy of the dog would be greater.
Questions and CORRECT Answers
1. Based on the primer on scale and approximation, the length of a ribosome is approximately
____ orders of magnitude smaller than the length of a eukaryotic cell and approximately ____
orders of magnitude larger than the length of an amino acid.
a. 3, 2
b. 100, 10
c. 1, 5
d. 0,1 - CORRECT ANSWER - a. 3, 2
Translation is the process by which:
a. proteins are synthesized from DNA molecules.
b. RNA is synthesized from protein.
c. RNA is synthesized from DNA.
d. DNA is synthesized from protein.
e. proteins are synthesized from RNA molecules. - CORRECT ANSWER - e. proteins are
synthesized from RNA molecules.
All organisms use which of the following molecules to carry out cellular work such as growth
and moving substances?
a. membranes
b. DNA
c. ATP
d. RNA
,e. None of the above - CORRECT ANSWER - c. ATP
A major difference between eukaryotic cells and prokaryotic cells is that:
a. neither eukaryotic cells nor prokaryotic cells have a nucleus.
b. both eukaryotic cells and prokaryotic cells have a nucleus.
c. prokaryotic cells have a nucleus and eukaryotic cells do not.
d. eukaryotic cells have a nucleus and prokaryotic cells do not. - CORRECT ANSWER -
d. eukaryotic cells have a nucleus and prokaryotic cells do not.
True or False:
Observations allow scientists to draw tentative explanations called hypotheses. - CORRECT
ANSWER - True
Which of the following is NOT a key feature of individual cells?
a. the presence of a plasma membrane
b. the ability to store and transit information using nucleic acids
c. the presence of a nucleus
d. the ability to harvest and transform energy from the environment - CORRECT
ANSWER - c. the presence of a nucleus
, Nucleic acids are important information storage molecules present in virtually every cell. Which
of the following process are carried out by a cell when it accesses that information in the DNA of
the genes?
a. DNA replication and translation
b. DNA replication and transcription
c. transcription and translation - CORRECT ANSWER - c. transcription and translation
The energy before a chemical reaction and the energy after a chemical reaction is the same. This
is an example of:
a. The second law of thermodynamics
b. The first law of thermodynamics
c. The scientific method
d. Evolution by natural selection - CORRECT ANSWER - b. The first law of
thermodynamics
If you were to compare the entropy of a dog to that of a bucket of water, which of the following
statement would be TRUE?
a. The entropy of the bucket of water and the entropy of the dog would be equal.
b. The entropy of the dog would be greater.
