1
cell bio exam 1 textbook Questions
and Answers (100% Correct
Answers) Already Graded A+
Genetic changes acted on by selection are best described as
the fundamentals of what process? Ans: evolution
© 2026 Assignment
Determine whether the following statement is true or false,
and why.
Guru01 - Stuvia
Expert
All cells require oxygen in order to survive. Ans: It is false
because some cells perform anaerobic respiration.
Is the following statement true, false, or impossible to
determine?
Organisms that have inherited their genetic instructions from
a common ancestor share the same DNA sequence. Ans: false
What is a drawback to using electron microscopy? Ans: It
cannot be used to view living cells.
What is a drawback to using light microscopy? Ans: It cannot
be used to view structures smaller than a bacterium.
Some antibiotics target features that are unique to bacterial
cells and absent from our own cells. Which of the following
would present a safe target for a new antibiotic? Ans: cell wall
Which of these three classifications is included within one of
the others: prokaryotes, eukaryotes, or archaea? Ans: archaea
, 2
Is the following statement true, false, or impossible to
determine?
Genome sequencing has revealed that archaea and bacteria—
which are both prokaryotes—differ as much from each other as
either does from the eukaryotes. Ans: false
Which cellular component separates the DNA of eukaryotic
cells from the cytosol? Ans: nuclear membrane
© 2026 Assignment
Which structure or process mediates the exchange of materials
between the endoplasmic reticulum, Golgi apparatus, the
lysosomes, and the outside of the cell? Ans: transport vesicles
Guru01 - Stuvia
Expert
Which term best describes a pair of genes (or gene products)
that derived from a common ancestral gene? Ans: homologous
Which of the following is frequently studied as a model
vertebrate? Ans: zebrafish
Which statement is NOT true of E. coli? Ans: E. coli is a model
eukaryote.
Radioactive isotopes (radioisotopes) of elements are commonly
used in biological experiments as tracers to follow and detect
molecules of interest. For example, photosynthetic
intermediates produced during carbon dioxide conversion to
sugars were detected by exposing algae to carbon dioxide
containing a radioactive form of carbon. This radioactive
carbon could be rapidly detected in molecules produced by the
algae during carbon fixation and sugar production. Why can
scientists substitute radioisotopes for isotopes commonly
found in cells when conducting experiments? Ans:
Radioisotopes of an element differ only in the number of
neutrons, so therefore they behave the same way chemically as
the isotopes that occur in cells
cell bio exam 1 textbook Questions
and Answers (100% Correct
Answers) Already Graded A+
Genetic changes acted on by selection are best described as
the fundamentals of what process? Ans: evolution
© 2026 Assignment
Determine whether the following statement is true or false,
and why.
Guru01 - Stuvia
Expert
All cells require oxygen in order to survive. Ans: It is false
because some cells perform anaerobic respiration.
Is the following statement true, false, or impossible to
determine?
Organisms that have inherited their genetic instructions from
a common ancestor share the same DNA sequence. Ans: false
What is a drawback to using electron microscopy? Ans: It
cannot be used to view living cells.
What is a drawback to using light microscopy? Ans: It cannot
be used to view structures smaller than a bacterium.
Some antibiotics target features that are unique to bacterial
cells and absent from our own cells. Which of the following
would present a safe target for a new antibiotic? Ans: cell wall
Which of these three classifications is included within one of
the others: prokaryotes, eukaryotes, or archaea? Ans: archaea
, 2
Is the following statement true, false, or impossible to
determine?
Genome sequencing has revealed that archaea and bacteria—
which are both prokaryotes—differ as much from each other as
either does from the eukaryotes. Ans: false
Which cellular component separates the DNA of eukaryotic
cells from the cytosol? Ans: nuclear membrane
© 2026 Assignment
Which structure or process mediates the exchange of materials
between the endoplasmic reticulum, Golgi apparatus, the
lysosomes, and the outside of the cell? Ans: transport vesicles
Guru01 - Stuvia
Expert
Which term best describes a pair of genes (or gene products)
that derived from a common ancestral gene? Ans: homologous
Which of the following is frequently studied as a model
vertebrate? Ans: zebrafish
Which statement is NOT true of E. coli? Ans: E. coli is a model
eukaryote.
Radioactive isotopes (radioisotopes) of elements are commonly
used in biological experiments as tracers to follow and detect
molecules of interest. For example, photosynthetic
intermediates produced during carbon dioxide conversion to
sugars were detected by exposing algae to carbon dioxide
containing a radioactive form of carbon. This radioactive
carbon could be rapidly detected in molecules produced by the
algae during carbon fixation and sugar production. Why can
scientists substitute radioisotopes for isotopes commonly
found in cells when conducting experiments? Ans:
Radioisotopes of an element differ only in the number of
neutrons, so therefore they behave the same way chemically as
the isotopes that occur in cells
