Question 1

A number of different types of microscopy exist.Each type of microscopy has advantages and disadvantages.Can you identify the microscope that would be most advantageous for the situations below?
a.A cell biologist wishes to visualize the ribosomes of a cell.
b.A microbiologist wishes to examine the motility of a bacterium.
c.An immunologist wishes to determine if a lymphocyte possesses a certain surface protein.
d.A virologist is trying to determine the three-dimensional shape of a virus.
e.A pathologist is trying to examine the cytoplasm of a cell for changes that result from viral infection.

Accepted Answer

(Answers may vary.)
a.Electron microscop...

Question 2

Which of the following is an application of immunofluorescence microscopy?

Accepted Answer

A)  Visualization of the natural fluorescence of a specimen under UV light.
B)  Identification of specific components of the immune system.
C)  Identifying which organelle or cellular compartment contains a particular protein.
D)  Visualization of the surface structures of a specimen.
E)  Construction of three-dimensional images of structures smaller than 10 nm.F) A) and B)
G) D) and E)

Question 3

Gregor Mendel was most influential in which field of biology?

Accepted Answer

A)  genetics
B)  chromatography
C)  biochemistry
D)  prokaryotic transformation
E)  cytologyF) D) and E)
G) None of the above

Question 4

________ synthesized urea in the laboratory from inorganic starting materials.Much of what is now called ________ dates from this discovery.

Accepted Answer

Friedrich ...

Question 5

Which of the following is mismatched?

Accepted Answer

A)   Escherichia coli  - genetics
B)   Drosophila melanogaster  - embryogenesis
C)   Mus musculus  - immunology
D)   Caenorhabditis elegans  - photosynthesis
E)   Arabidopsis thaliana  - plant gene functionF) A) and B)
G) All of the above

Question 6

________ is a biochemical technique that allows one to separate biological molecules based on size,shape,and/or affinity for specific molecules or functional groups.

Accepted Answer

The answer of ________ is a biochemical technique that allows...

Question 7

To which of the following do Mendel's observations relate?

Accepted Answer

A)  thermodynamics
B)  gravity
C)  ideal gas laws
D)  heredity
E)  diffusionF) A) and B)
G) A) and C)

Question 8

Wöhler revolutionized biology through his demonstration that biological molecules are governed by the ordinary laws of physics and chemistry.He demonstrated this principle by

Accepted Answer

A)  synthesizing urea in the laboratory from ammonium cyanate.
B)  developing techniques for isolating,purifying,and analyzing subcomponents of cells.
C)  defining the laws of heredity.
D)  discovering active agents in cell extracts that were specific biological catalysts that have since come to be called enzymes.
E)  inventing mass spectrometry which is commonly used to determine the size and composition of individual proteins.F) A) and B)
G) A) and D)

Question 9

Robert Hooke coined the term cell when studying thin slices of cork.These ________ were the first cells observed because ________.

Accepted Answer

A)  dead plant cells; the thick cells walls did not require high resolution or magnification to view
B)  dead animal cells; they were immobile and did not need to be fixed before viewing
C)  compartments; they were actually the result of multiple cells that had merged and died to form large compartments that were easy to view
D)  immune cells; they produce antibodies that embed in the cell membrane to make it visible
E)  "little rooms"; they were 100 nm in diameter,much larger than most plant cellsF) B) and D)
G) B) and E)

Question 10

Melvin Calvin and his colleagues used which of the following to deduce the steps in the Calvin cycle?

Accepted Answer

A)  negative staining
B)  Drosophila melanogaster
C)  electron microscopy
D)  ultracentrifugation
E)  radioisotopesF) A) and D)
G) B) and E)

Question 11

Glycolysis is also called the ________ pathway after the scientists who did most of the work to define it.

Accepted Answer

The answer of Glycolysis is also called the ________ pathway...

Question 12

In 1880,Walther Flemming identified ________,threadlike bodies seen in dividing cells.

Accepted Answer

The answer of In 1880,Walther Flemming identified ________,threadlike bodies seen...

Question 13

The outcome of the joining of cytology and biochemistry yielded a better understanding of the cell by

Accepted Answer

A)  identification of cellular structures.
B)  identification of cellular biochemical pathways.
C)  creating bioinformatics.
D)  identification of cellular structures and biochemical pathways.
E)  identification of biochemical pathways and creating bioinformatics.F) D) and E)
G) B) and C)

Question 14

Once a scientific theory becomes a law,it

Accepted Answer

A)  cannot be changed.
B)  cannot be challenged.
C)  becomes static.
D)  is subject to modification.
E)  is irrefutable.F) A) and E)
G) A) and D)

Question 15

A microtome is used to

Accepted Answer

A)  view microscopic organisms.
B)  slice thin sections of specimens.
C)  focus short wavelengths of light.
D)  manipulate tiny objects.
E)  dissect cellular organelles.F) A) and B)
G) B) and D)

Question 16

You are studying the response of macrophages infected with the intracellular bacterium  Brucella ,specifically by examining which gene products are being expressed.You would be studying the macrophage ________ to obtain this information.

Accepted Answer

A)  proteome
B)  genome
C)  transciptome
D)  amplicon
E)  metabolomeF) A) and B)
G) A) and E)

Exam 1: A Preview of Cell Biology

The outcome of the joining of cytology and biochemistry yielded a better understanding of the cell by

Correct Answer
verified

Glycolysis is also called the ________ pathway after the scientists who did most of the work to define it.

Correct Answer
verified

________ is a biochemical technique that allows one to separate biological molecules based on size,shape,and/or affinity for specific molecules or functional groups.

Correct Answer
verified

Wöhler revolutionized biology through his demonstration that biological molecules are governed by the ordinary laws of physics and chemistry.He demonstrated this principle by

Correct Answer
verified

You are studying the response of macrophages infected with the intracellular bacterium Brucella ,specifically by examining which gene products are being expressed.You would be studying the macrophage ________ to obtain this information.

Correct Answer
verified

To which of the following do Mendel's observations relate?

Correct Answer
verified

Gregor Mendel was most influential in which field of biology?

Correct Answer
verified

Which of the following is an application of immunofluorescence microscopy?

Correct Answer
verified

synthesized urea in the laboratory from inorganic starting materials.Much of what is now called dates from this discovery.

Correct Answer
verified
Friedrich ...
View Answer

Robert Hooke coined the term cell when studying thin slices of cork.These were the first cells observed because .

Correct Answer
verified

Melvin Calvin and his colleagues used which of the following to deduce the steps in the Calvin cycle?

Correct Answer
verified

Once a scientific theory becomes a law,it

Correct Answer
verified

In 1880,Walther Flemming identified ________,threadlike bodies seen in dividing cells.

Correct Answer
verified

Which of the following is mismatched?

Correct Answer
verified

Correct Answer
verified
(Answers may vary.)
a.Electron microscop...
View Answer

A microtome is used to

Correct Answer
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Exam 1: A Preview of Cell Biology

The outcome of the joining of cytology and biochemistry yielded a better understanding of the cell by

Correct AnswerverifiedShow Answer

Glycolysis is also called the ________ pathway after the scientists who did most of the work to define it.

Correct AnswerverifiedShow Answer

________ is a biochemical technique that allows one to separate biological molecules based on size,shape,and/or affinity for specific molecules or functional groups.

Correct AnswerverifiedShow Answer

Wöhler revolutionized biology through his demonstration that biological molecules are governed by the ordinary laws of physics and chemistry.He demonstrated this principle by

Correct AnswerverifiedShow Answer

You are studying the response of macrophages infected with the intracellular bacterium Brucella ,specifically by examining which gene products are being expressed.You would be studying the macrophage ________ to obtain this information.

Correct AnswerverifiedShow Answer

To which of the following do Mendel's observations relate?

Correct AnswerverifiedShow Answer

Gregor Mendel was most influential in which field of biology?

Correct AnswerverifiedShow Answer

Which of the following is an application of immunofluorescence microscopy?

Correct AnswerverifiedShow Answer

________ synthesized urea in the laboratory from inorganic starting materials.Much of what is now called ________ dates from this discovery.

Correct AnswerverifiedFriedrich ...View AnswerShow Answer

Robert Hooke coined the term cell when studying thin slices of cork.These ________ were the first cells observed because ________.

Correct AnswerverifiedShow Answer

Melvin Calvin and his colleagues used which of the following to deduce the steps in the Calvin cycle?

Correct AnswerverifiedShow Answer

Once a scientific theory becomes a law,it

Correct AnswerverifiedShow Answer

In 1880,Walther Flemming identified ________,threadlike bodies seen in dividing cells.

Correct AnswerverifiedShow Answer

Which of the following is mismatched?

Correct AnswerverifiedShow Answer

Correct Answerverified(Answers may vary.)a.Electron microscop...View AnswerShow Answer

A microtome is used to

Correct AnswerverifiedShow Answer

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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

synthesized urea in the laboratory from inorganic starting materials.Much of what is now called dates from this discovery.

Correct Answer
verified
Friedrich ...
View Answer

Robert Hooke coined the term cell when studying thin slices of cork.These were the first cells observed because .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
(Answers may vary.)
a.Electron microscop...
View Answer

Correct Answer
verified