Question 1

Which type of cell structure is found in plants but not in animals?

Accepted Answer

A)   Ribosomes
B)   Mitochondria
C)   Nuclei
D)   Glyoxysomes
E)   Lysosomes

Question 2

If all the lysosomes within a cell suddenly ruptured, what would be the most likely result?

Accepted Answer

A)   Proteins in the cytosol would break down.
B)   More proteins would be made.
C)   The DNA in mitochondria would break down.
D)   The mitochondria and chloroplasts would divide.
E)   There would be no change in cell function.

Question 3

Which represents the order of the outer layers in some prokaryotes, starting at the interior and moving to the exterior?

Accepted Answer

A)   Cell membrane, peptidoglycan cell wall, polysaccharide-rich phospholipid membrane, capsule
B)   Cell membrane, polysaccharide-rich phospholipid membrane, peptidoglycan cell wall, capsule
C)   Capsule, polysaccharide-rich phospholipid membrane, peptidoglycan cell wall, cell membrane
D)   Capsule, cell membrane, peptidoglycan cell wall, polysaccharide-rich phospholipid membrane
E)   Peptidoglycan cell wall, cell membrane, polysaccharide-rich phospholipid membrane, capsule

Question 4

The ability of living organisms to maintain a constant internal environment is known as _______.

Accepted Answer

The answer of The ability of living organisms to maintain...

Question 5

The function of the nuclear pores is to

Accepted Answer

A)   synthesize and repair DNA.
B)   assemble ribosomes from raw materials that are synthesized in the nucleus.
C)   communicate with components of the endomembrane system.
D)   regulate movement of materials across the nuclear membrane.
E)   support the nuclear envelope.

Question 6

Refer to the figure below.  The flowchart can be completed by filling in the unlabeled boxes with the word _______ to identify the structures used to transport proteins both between organelles and to the cell exterior, where they are secreted into the external environment.

Accepted Answer

The answer of Refer to the figure below.  The...

Question 7

Why are cells small?

Accepted Answer

Cells are small because they cannot func...

Question 8

Refer to the list below, which summarizes the characteristics that distinguish living things from nonliving things.
F1F1F1S1F1F1F10F1F1F1S1F1F1F10Living things take in matter and energy from the environment.
F1F1F1S1F1F1F10F1F1F1S1F1F1F10Living things respond to stimuli in the environment.
F1F1F1S1F1F1F10F1F1F1S1F1F1F10Living things maintain a stable internal environment, a process called homeostasis.
F1F1F1S1F1F1F10F1F1F1S1F1F1F10Living things grow and develop.
F1F1F1S1F1F1F10F1F1F1S1F1F1F10Living things reproduce.
F1F1F1S1F1F1F10F1F1F1S1F1F1F10Living things pass genetic information from one generation to the next as they reproduce.
If a student were interested in understanding what mechanisms allow living organisms to have these characteristics, would the study of cell biology help her achieve her learning goals? Explain your reasoning.

Accepted Answer

Yes, the study of cell biology would be ...

Question 9

Some bacteria are not detected by the human immune system because they possess an outer layer of slime known as a(n) _______.

Accepted Answer

The answer of Some bacteria are not detected by the...

Question 10

Which statement about a prokaryotic cell wall is true?

Accepted Answer

A)   It is made exclusively of proteins.
B)   It is located inside the cell membrane.
C)   It provides a barrier to infection for a cell.
D)   It is a specialized structure found in most prokaryotes.
E)   It is a semirigid structure that provides support in eukaryotes but not in prokaryotes.

Question 11

The three principle tenets of biology-that all organisms are composed of cells, that all cells come from preexisting cells, and that cells are the fundamental units of life-make up the unifying principle known as the _______.

Accepted Answer

The answer of The three principle tenets of biology-that all...

Question 12

_______ are involved in cytoplasmic streaming, in the "pinching" of a cell that ultimately divides an animal cell into two daughter cells, and in the formation of pseudopodia.

Accepted Answer

The answer of _______ are involved in cytoplasmic streaming, in...

Question 13

A hospital nurse notices a slick spot on an IV needle and suspects bacterial contamination.Which structure might have helped these bacterial cells attach to one another and stick to the needle?

Accepted Answer

A)   Capsule
B)   Cell wall
C)   Cytoplasm
D)   Flagellum
E)   Ribosome

Question 14

Which action taken by a cell would best allow it to increase its rate of exchange with the environment relative to its amount of chemical activity?

Accepted Answer

A)   Increase its size.
B)   Engulf another cell.
C)   Divide into as many small cells as possible.
D)   Adhere itself to another cell.
E)   Move around quickly in its environment.

Question 15

The extracellular matrix of animal cells

Accepted Answer

A)   is composed of cellulose.
B)   contains lysosomes.
C)   limits the cell volume by remaining rigid.
D)   helps orient cell movements during embryonic development.
E)   acts as a barrier to disease-causing fungi.

Question 16

Refer to the figure below.  The organelle shown is found in all cells but is most numerous in cells requiring a large amount of energy (e.g., liver cells) .This organelle is called a(n)

Accepted Answer

A)   mitochondrion.
B)   endoplasmic reticulum.
C)   nucleus.
D)   vacuole.
E)   cytoskeleton.

Question 17

Scientists have used DNA sequencing data in developing a theory of evolution of cell structures such as mitochondria and chloroplasts, but they have not used this type of data in the same way for developing a theory of evolution of the endomembrane system.Which statement provides a viable reason to explain this difference?

Accepted Answer

A)   The endomembrane system is more complex in structure than either mitochondria or chloroplasts and therefore requires a different experimental approach for analyzing its origins.
B)   The endomembrane system likely evolved over a very long time period, whereas mitochondria and chloroplasts likely originated as the result of a small number of events over a much shorter time.
C)   The endomembrane system is thought to have evolved via folding of the cell membrane and is therefore not like mitochondria and chloroplasts, which contain DNA and likely evolved from prokaryotic cells.
D)   The endomembrane system evolved before mitochondria and chloroplasts evolved, and any evidence of its evolution that might have been found from DNA sequencing is likely to be gone.
E)   The endomembrane system is quite extensive, occupying a very large surface area within a single cell, which makes it difficult to use any experimental technique to analyze its evolutionary origins.

Question 18

Which function is carried out by the cell membrane?

Accepted Answer

A)   Gene regulation
B)   Energy metabolism
C)   Information storage
D)   Active transport
E)   Protein production

Question 19

Which microscope part is used in both the electron microscope and the light microscope?

Accepted Answer

A)   Light beam
B)   Magnets
C)   Specimen stage
D)   Electron beam
E)   Fluorescent screen

Question 20

Which is a role of extracellular structures?

Accepted Answer

A)   Information signaling
B)   Energy metabolism
C)   Metabolic regulation
D)   Information storage
E)   Sorting and packaging

Exam 5: Cells: the Working Units of Life

The function of the nuclear pores is to

Correct Answer
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Some bacteria are not detected by the human immune system because they possess an outer layer of slime known as a(n) _______.

Correct Answer
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Which is a role of extracellular structures?

Correct Answer
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The three principle tenets of biology-that all organisms are composed of cells, that all cells come from preexisting cells, and that cells are the fundamental units of life-make up the unifying principle known as the _______.

Correct Answer
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Correct Answer
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Refer to the figure below. The organelle shown is found in all cells but is most numerous in cells requiring a large amount of energy (e.g., liver cells) .This organelle is called a(n)

Correct Answer
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If all the lysosomes within a cell suddenly ruptured, what would be the most likely result?

Correct Answer
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Correct Answer
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Yes, the study of cell biology would be ...
View Answer

Why are cells small?

Correct Answer
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Cells are small because they cannot func...
View Answer

Refer to the figure below. The flowchart can be completed by filling in the unlabeled boxes with the word _______ to identify the structures used to transport proteins both between organelles and to the cell exterior, where they are secreted into the external environment.

Correct Answer
verified

_______ are involved in cytoplasmic streaming, in the "pinching" of a cell that ultimately divides an animal cell into two daughter cells, and in the formation of pseudopodia.

Correct Answer
verified

Which represents the order of the outer layers in some prokaryotes, starting at the interior and moving to the exterior?

Correct Answer
verified

Which type of cell structure is found in plants but not in animals?

Correct Answer
verified

Which statement about a prokaryotic cell wall is true?

Correct Answer
verified

The ability of living organisms to maintain a constant internal environment is known as _______.

Correct Answer
verified

Which function is carried out by the cell membrane?

Correct Answer
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Which action taken by a cell would best allow it to increase its rate of exchange with the environment relative to its amount of chemical activity?

Correct Answer
verified

A hospital nurse notices a slick spot on an IV needle and suspects bacterial contamination.Which structure might have helped these bacterial cells attach to one another and stick to the needle?

Correct Answer
verified

Which microscope part is used in both the electron microscope and the light microscope?

Correct Answer
verified

The extracellular matrix of animal cells

Correct Answer
verified

Exam 5: Cells: the Working Units of Life

The function of the nuclear pores is to

Correct AnswerverifiedShow Answer

Some bacteria are not detected by the human immune system because they possess an outer layer of slime known as a(n) _______.

Correct AnswerverifiedShow Answer

Which is a role of extracellular structures?

Correct AnswerverifiedShow Answer

The three principle tenets of biology-that all organisms are composed of cells, that all cells come from preexisting cells, and that cells are the fundamental units of life-make up the unifying principle known as the _______.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Refer to the figure below. The organelle shown is found in all cells but is most numerous in cells requiring a large amount of energy (e.g., liver cells) .This organelle is called a(n)

Correct AnswerverifiedShow Answer

If all the lysosomes within a cell suddenly ruptured, what would be the most likely result?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedYes, the study of cell biology would be ...View AnswerShow Answer

Why are cells small?

Correct AnswerverifiedCells are small because they cannot func...View AnswerShow Answer

Refer to the figure below. The flowchart can be completed by filling in the unlabeled boxes with the word _______ to identify the structures used to transport proteins both between organelles and to the cell exterior, where they are secreted into the external environment.

Correct AnswerverifiedShow Answer

_______ are involved in cytoplasmic streaming, in the "pinching" of a cell that ultimately divides an animal cell into two daughter cells, and in the formation of pseudopodia.

Correct AnswerverifiedShow Answer

Which represents the order of the outer layers in some prokaryotes, starting at the interior and moving to the exterior?

Correct AnswerverifiedShow Answer

Which type of cell structure is found in plants but not in animals?

Correct AnswerverifiedShow Answer

Which statement about a prokaryotic cell wall is true?

Correct AnswerverifiedShow Answer

The ability of living organisms to maintain a constant internal environment is known as _______.

Correct AnswerverifiedShow Answer

Which function is carried out by the cell membrane?

Correct AnswerverifiedShow Answer

Which action taken by a cell would best allow it to increase its rate of exchange with the environment relative to its amount of chemical activity?

Correct AnswerverifiedShow Answer

A hospital nurse notices a slick spot on an IV needle and suspects bacterial contamination.Which structure might have helped these bacterial cells attach to one another and stick to the needle?

Correct AnswerverifiedShow Answer

Which microscope part is used in both the electron microscope and the light microscope?

Correct AnswerverifiedShow Answer

The extracellular matrix of animal cells

Correct AnswerverifiedShow Answer

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Yes, the study of cell biology would be ...
View Answer

Correct Answer
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Cells are small because they cannot func...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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